Ma, IL
Beihai Ma, Naperville, IL US
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20100302706 | METHOD FOR FABRICATION OF CERAMIC DIELECTRIC FILMS ON COPPER FOILS - The present invention provides a method for fabricating a ceramic film on a copper foil. The method comprises applying a layer of a sol-gel composition onto a copper foil. The sol-gel composition comprises a precursor of a ceramic material suspended in 2-methoxyethanol. The layer of sol-gel is then dried at a temperature up to about 250° C. The dried layer is then pyrolyzed at a temperature in the range of about 300 to about 450° C. to form a ceramic film from the ceramic precursor. The ceramic film is then crystallized at a temperature in the range of about 600 to about 750° C. The drying, pyrolyzing and crystallizing are performed under a flowing stream of an inert gas. In some embodiments an additional layer of the sol-gel composition is applied onto the ceramic film and the drying, pyrolyzing and crystallizing steps are repeated for the additional layer to build up a thicker ceramic layer on the copper foil. The process can be repeated one or more times if desired. | 12-02-2010 |
20120257324 | MULTILAYER CAPACITORS, METHOD FOR MAKING MULTILAYER CAPACITORS - The invention provides a stacked capacitor configuration comprising subunits each with a thickness of as low as 20 microns. Also provided is combination capacitor and printed wire board wherein the capacitor is encapsulated by the wire board. The invented capacitors are applicable in micro-electronic applications and high power applications, whether it is AC to DC or DC to AC, or DC to DC. | 10-11-2012 |
20130071670 | METHOD FOR PRODUCING THIN FILM ELECTRODES - The invention provides for A method for producing pure phase strontium ruthenium oxide films, the method comprising solubilizing ruthenium-containing and strontium-containing compounds to create a mixture; subjecting the mixture to a first temperature above that necessary for forming RuO | 03-21-2013 |
20130084444 | METHOD FOR FABRICATION OF CRACK-FREE CERAMIC DIELECTRIC FILMS - The invention provides a process for forming crack-free dielectric films on a substrate. The process comprise the application of a dielectric precursor layer of a thickness from about 0.3 μm to about 1.0 μm to a substrate. The deposition is followed by low temperature heat pretreatment, prepyrolysis, pyrolysis and crystallization step for each layer. The deposition, heat pretreatment, prepyrolysis, pyrolysis and crystallization are repeated until the dielectric film forms an overall thickness of from about 1.5 μm to about 20.0 μm and providing a final crystallization treatment to form a thick dielectric film. Also provided was a thick crack-free dielectric film on a substrate, the dielectric forming a dense thick crack-free dielectric having an overall dielectric thickness of from about 1.5 μm to about 20.0 μm. | 04-04-2013 |
20130335882 | METHOD OF MAKING DIELECTRIC CAPACITORS WITH INCREASED DIELECTRIC BREAKDOWN STRENGTH - The invention is directed to a process for making a dielectric ceramic film capacitor and the ceramic dielectric laminated capacitor formed therefrom, the dielectric ceramic film capacitors having increased dielectric breakdown strength. The invention increases breakdown strength by embedding a conductive oxide layer between electrode layers within the dielectric layer of the capacitors. The conductive oxide layer redistributes and dissipates charge, thus mitigating charge concentration and micro fractures formed within the dielectric by electric fields. | 12-19-2013 |
20140120736 | METHOD FOR FABRICATION OF CRACK-FREE CERAMIC DIELECTRIC FILMS - The invention provides a process for forming crack-free dielectric films on a substrate. The process comprises the application of a dielectric precursor layer of a thickness from about 0.3 μm to about 1.0 μm to a substrate. The deposition is followed by low temperature heat pretreatment, prepyrolysis, pyrolysis and crystallization step for each layer. The deposition, heat pretreatment, prepyrolysis, pyrolysis and crystallization are repeated until the dielectric film forms an overall thickness of from about 1.5 μm to about 20.0 μm and providing a final crystallization treatment to form a thick dielectric film. The process provides a thick crack-free dielectric film on a substrate, the dielectric forming a dense thick crack-free dielectric having an overall dielectric thickness of from about 1.5 μm to about 20.0 μm. | 05-01-2014 |
20150116894 | PLZT CAPACITOR ON GLASS SUBSTRATE - A lead-lanthanum-zirconium-titanate (PLZT) capacitor on a substrate formed of glass. The first metallization layer is deposited on a top side of the substrate to form a first electrode. The dielectric layer of PLZT is deposited over the first metallization layer. The second metallization layer deposited over the dielectric layer to form a second electrode. The glass substrate is advantageous as glass is compatible with an annealing process used to form the capacitor. | 04-30-2015 |
20150364257 | WOUND/STACKED CERAMIC FILM CAPACITORS, METHOD FOR MAKING CERAMIC FILM CAPACITORS - The invention provides a process for making ceramic film capacitors, the process comprising supplying a flexible substrate, depositing a first electrode on a first region of the flexible substrate, wherein the first electrode defines a first thickness, overlaying the first electrode with a dielectric film; and depositing a second electrode on the ceramic film, wherein the second electrode defines a second thickness. Also provided is a capacitor comprising flexible substrate, a first electrode deposited on said flexible substrate, a dielectric overlaying the first electrode; and a second electrode deposited on said dielectric. | 12-17-2015 |
20160027580 | PLZT Capacitor On Glass Substrate - A lead-lanthanum-zirconium-titanate (PLZT) capacitor on a substrate formed of glass. The first metallization layer is deposited on a top side of the substrate to form a first electrode. The dielectric layer of PLZT is deposited over the first metallization layer. The second metallization layer deposited over the dielectric layer to form a second electrode. The glass substrate is advantageous as glass is compatible with an annealing process used to form the capacitor. | 01-28-2016 |
Changxue C. Ma, Barrington, IL US
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20080207125 | Method and Apparatus to Facilitate Conforming a Wireless Personal Communications Device to a Local Social Standard - A wireless transmitter ( | 08-28-2008 |
Chicheng Ma, Forsyth, IL US
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20140039224 | METHODS FOR PRODUCING BIODERIVED PROPYLENE GLYCOL - In the process of distilling a polyol product mixture including one or both of a biobased propylene glycol and a biobased ethylene glycol from the reaction of hydrogen with a biobased feed, it has been discovered that undesirable epoxides can form, and the present invention provides means for guarding against their formation, for removing epoxides which do form by particular methods of distilling, and for removing the epoxides from a finished, otherwise commercially acceptable biobased glycol product. | 02-06-2014 |
20140127767 | METHODS FOR PREPARATION OF AMMONIUM SALTS OF C4 DIACIDS BY FERMENTAION AND INTEGRATED METHODS FOR MAKING C4 DERIVATIVES - Methods for forming ammonium salts of C4 diacids in a fermentation process with removal of divalent metal carbonate salts are disclosed. The pH of fermentation broths for production of C4 diacids is controlled by adding alkaline oxygen containing calcium or magnesium compounds, which forms divalent metal salts of the diacids. The divalent metal salts of the diacids are substituted with ammonium by introduction of ammonium salts at elevated temperature and pressure forming soluble ammonium salts thereof. C02 or bicarbonate is simultaneously added to the fermentation media at the elevated temperature and pressure. Reducing the temperature and pressure forms insoluble divalent metal carbonate salts that are separated from the solubilized ammonium diacid salts. The recovered carbonate salts can be recycled as pH control materials in subsequent fermentations. The solubilized ammonium diacid salts may form the derivatives N-methyl-2-pyrrolidone (NMP) gamma-butyrolactone (GBL) and 1,4-butane-diol (BDO) in single pot reactions. | 05-08-2014 |
20140162326 | METHODS FOR PREPARATION OF AMMONIUM SALTS OF C4 DIACIDS BY FERMENTAION AND INTEGRATED METHODS FOR MAKING C4 DERIVATIVES - Methods for forming ammonium salts of C4 diacids in a fermentation process with removal of divalent metal carbonate salts are disclosed. The pH of fermentation broths for production of C4 diacids is controlled by adding alkaline oxygen containing calcium or magnesium compounds, which forms divalent metal salts of the diacids. The divalent metal salts of the diacids are substituted with ammonium by introduction of ammonium salts at elevated temperature and pressure forming soluble ammonium salts thereof. C02 or bicarbonate is simultaneously added to the fennentation media at the elevated temperature and pressure. Reducing the temperature and pressure forms insoluble divalent metal carbonate salts that are separated from the solubilized ammonium diacid salts. | 06-12-2014 |
20140256991 | METHODS FOR PRODUCING BIODERIVED PROPYLENE GLYCOL - In the process of distilling a polyol product mixture including one or both of a biobased propylene glycol and a biobased ethylene glycol from the reaction of hydrogen with a biobased feed, it has been discovered that undesirable epoxides can form, and the present invention provides means for guarding against their formation, for removing epoxides which do form by particular methods of distilling, and for removing the epoxides from a finished, otherwise commercially acceptable biobased glycol product. | 09-11-2014 |
20150152031 | METHODS FOR PRODUCING BIODERIVED PROPYLENE GLYCOL - In the process of distilling a polyol product mixture including one or both of a biobased propylene glycol and a biobased ethylene glycol from the reaction of hydrogen with a biobased feed, it has been discovered that undesirable epoxides can form, and the present invention provides means for guarding against their formation, for removing epoxides which do form by particular methods of distilling, and for removing the epoxides from a finished, otherwise commercially acceptable biobased glycol product. | 06-04-2015 |
20150360219 | REGENERATION OF CATALYST FOR HYDROGENATION OF SUGARS - A process for regenerating catalysts that have been deactivated or poisoned during hydrogenation of biomass, sugars and polysaccharides is described, in which polymerized species that have agglomerated to catalyst surfaces can be removed by means of washing the catalyst with hot water at subcritical temperatures. A feature of the process can regenerate the catalysts in situ, which allows the process to be adapted for used in continuous throughput reactor systems. Also described is a continuous hydrogenation process that incorporated the present regeneration process. | 12-17-2015 |
Chi-Cheng Ma, Forsyth, IL US
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20130011885 | PROCESS FOR FRACTIONATION OF LIGNOCELLULOSIC BIOMASS - Methods are provided for the efficient fractionation of lignocellulosic biomasses into cellulosic, hemicellulosic and lignin fractions, wherein concentrated organic acid vapors are applied to the biomass at elevated temperatures at the location(s) or near the location(s) where the biomass has been harvested and gathered, to at least partly depolymerize or substantially solubilize the hemicelluloses and lignins in the biomass. The organic acid-treated biomass is in either case then dried and pelletized for extended bulk storage and/or for shipment to a second facility some distance away. The organic acid-treated biomass may be processed into desired chemicals, fuels and/or fuel additives at the local processing site or at a second facility away from the local processing site, or the pelletized material may be used as a ruminant feed locally or at a feedlot some distance removed from the local processing site. | 01-10-2013 |
20130130331 | METHOD OF PRODUCING SUGARS USING A COMBINATION OF ACIDS TO SELECTIVELY HYDROLYZE HEMICELLULOSIC AND CELLULOSIC MATERIALS - A method is provided for producing sugars using a combination of acids to hydrolyze hemicellulosic and cellulosic materials in biomass, said combination of acids namely comprising a first, weak organic acid (such as acetic acid or formic acid) for providing a pentose product or stream from hydrolyzing hemicellulosic materials in the biomass on a batchwise, semi-continuous or continuous basis, and a second, strong mineral acid (such as sulfuric acid) for providing a hexose product or stream from hydrolyzing cellulosic materials in the biomass. | 05-23-2013 |
20150126784 | REGENERATION OF CATALYST FOR HYDROGENATION OF SUGARS - A process for regenerating catalysts that have been deactivated or poisoned during hydrogenation of biomass, sugars and polysaccharides is described, in which polymerized species that have agglomerated to catalyst surfaces can be removed by means of washing the catalyst with hot water at subcritical temperatures. A feature of the process regenerates the catalysts in situ which allows the process to be adapted for used in continuous throughput reactor systems. Also described is a continuous hydrogenation process that incorporated the present regeneration process. | 05-07-2015 |
20150218069 | REMOVAL OF ORGANIC SALTS FROM BIO-DERIVED GLYCOL PRODUCTS OF POLYOL HYDROGENOLYSIS - A method for reducing contaminants in the production of a bio-derived glycol product of polyol hydro-genolysis is described. The method involves subjecting an aqueous, polyol product mixture (from the hydrogenolysis conversion of biologically-derived carbohydrate feedstock) to ion-exclusion chromatography to separate and reduce impurities from an eluant fraction containing a desired product, and distilling the eluant fraction to yield the desired product (e.g., propylene glycol or ethylene glycol). The reaction product mixture can be introduced into a continuous ion-exclusion chromatography system to reduce the impurities and produce in a high-throughput manner a finished otherwise commercially acceptable glycol product. | 08-06-2015 |
20150251980 | MULTIPHASE LOW MIXING PROCESSES - A process is described for improving the performance of certain multiphase reaction systems including a solid catalyst, one or more reactants in the gas phase and one or more reactants in the liquid phase, wherein a targeted maximum concentration of a reactant in the liquid phase is identified for providing improved value in terms of byproduct formation, catalyst deactivation and yields of desired products, and this targeted concentration is closely approached and preferably achieved, but not substantially exceeded, downstream in a continuous process or later in time from the initiation of a batch in a semibatch mode of operation of such processes. | 09-10-2015 |
Chunguang Ma, Champaign, IL US
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20090082304 | Methods of Treating Hematological Malignancies with Nucleoside Analog Drugs - The present invention provides methods of treating hematological malignancies, including multi-drug resistant malignancies, with 8-amino-adenosine and variants thereof. Also encompassed by the present invention is a method of predicting the response of a patient diagnosed with a hematological malignancy to treatment with a nucleoside analog and a method of screening candidate drugs for efficacy in treating hematological malignancies. | 03-26-2009 |
David C. Ma, Naperville, IL US
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20090069009 | DETERMINING PROCESSOR OCCUPANCY OF A CLUSTER OF HOME LOCATION REGISTERS - Methods and computer readable mediums are provided for determining the processor occupancy of a cluster of HLR registers. A deterministic-based performance model is utilized to determine the processor occupancy based on a number of nodes in the cluster, a number of call attempts per unit time, a number of autonomous registrations, a processor utilization for processing each call attempt and a processor utilization for processing each autonomous registration. The models may be utilized to determine the processor occupancy of each node in the cluster if a selected number of HLR nodes are utilized, such that an iterative process may be employed to select a number of HLR nodes in order for each HLR node to operate under a node processor occupancy threshold. | 03-12-2009 |
Ding Ma, Hoffman Estates, IL US
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20120254615 | USING A DYNAMICALLY-GENERATED SYMMETRIC KEY TO ESTABLISH INTERNET PROTOCOL SECURITY FOR COMMUNICATIONS BETWEEN A MOBILE SUBSCRIBER AND A SUPPORTING WIRELESS COMMUNICATIONS NETWORK - Embodiments provide a means for securing wireless network communications. A security association can be established between a mobile subscriber device ( | 10-04-2012 |
Jeffrey H. Ma, Lisle, IL US
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20150008825 | MICROPLASMA JET DEVICES, ARRAYS, MEDICAL DEVICES AND METHODS - Preferred embodiments of the present invention include microplasma jet devices and arrays in various materials, and low temperature microplasma jet devices and arrays. These include preferred embodiment single microplasma jet devices and arrays of devices formed in monolithic polymer blocks with elongated microcavities. The arrays can be densely packed, for example having 100 jets in an area of a few square centimeters. Additional embodiments include metal/metal oxide microplasma jet devices that have micronozzles defined in the metal oxide itself. Methods of fabrication of microplasma jet devices are also provided by the invention, and the methods have been demonstrated as being capable of producing tailored micronozzle contours that are unitary with the material insulating electrodes. | 01-08-2015 |
Jeong J. Ma, Long Grove, IL US
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20100277420 | Hand Held Electronic Device and Method of Performing a Dual Sided Gesture - A method and hand held electronic device are provided for performing a dual sided gesture on respective touch sensitive surfaces of a hand held electronic device. The method includes displaying an object on a display screen of the hand held electronic device, that is viewable from at least one side of the hand held electronic device. A virtual center of gravity associated with the displayed object is then defined. Simultaneous gestures are then received tracking the position and movement of an end of a pointer on each of a pair of respective surfaces of the hand held electronic device, each surface having a corresponding touch sensitive input. The location and movement of each gesture is then compared relative to the defined virtual center of gravity, and the displayed object is repositioned in response to the location and movement of each gesture relative to the defined virtual center of gravity. | 11-04-2010 |
20130093679 | User Interface with Localized Haptic Response - An interface peripheral ( | 04-18-2013 |
20130191741 | Methods and Apparatus for Providing Feedback from an Electronic Device - An electronic device, which can be a wearable electronic device, tablet electronic device, or other type of device, includes a user interface operable to detect gesture input. A visible output, which can be proximately disposed with the user interface, provides visible feedback with which a user can determine that the input was received. A control circuit is operable in some embodiments to control the output of the visible output to mimic the gesture input. Audible feedback and tactile feedback can be used in addition to the visible feedback. | 07-25-2013 |
20130217978 | METHOD AND DEVICE WITH CUSTOMIZABLE POWER MANAGEMENT - A wireless communication device ( | 08-22-2013 |
20130326790 | Wearable Band with Ease of Adjustment - An impact resistant wearable band assembly | 12-12-2013 |
20140009461 | Method and Device for Movement of Objects in a Stereoscopic Display - Disclosed is a method of manipulating viewable objects that includes providing a touch screen display capable of stereoscopic displaying of object images, wherein a zero-plane reference is positioned substantially coincident with the physical surface of the display, displaying on the touch screen a first object image and one or more second object images, wherein the object images are displayed to appear at least one of in front of, at, or behind the zero-plane, receiving a first input at the touch screen at a location substantially corresponding to an apparent position of the first object image, and modifying the displaying on the touch screen so that at least one of the first object image and the one or more second object images appear to move towards one of outward in front of the touch screen or inward behind the touch screen in a stereoscopic manner. | 01-09-2014 |
20140049477 | Systems and Methods for Touch-Based Two-Stage Text Input - Embodiments relate to systems and methods for touch-based two-stage text input. An electronic device ( | 02-20-2014 |
Jeong J. Ma, Long Gove, IL US
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20100277439 | Dual Sided Transparent Display Module and Portable Electronic Device Incorporating the Same - A dual sided transparent display module and an electronic device incorporating the same are provided. The dual sided transparent display module includes a primary transparent display having a first surface side and a second surface side. The transparent display module further includes a first side touch sensor array and a second side touch sensor array respectively located at the first surface side and the second surface side of the primary transparent display. The transparent display module still further includes a shutter element located at one of the first surface side and the second surface side of the primary transparent display. | 11-04-2010 |
Jiadong Ma, Darien, IL US
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20150033794 | Illuminable Bracelet - An illuminable bracelet generally includes a buckle, a band having a first end and a second end, a closure member disposed at the second end, a light source, and at least one logo disposed along an inner surface of the band. The band may be formed of a polymeric material that allows light from the light source in the buckle to permeate through the band, illuminating the band and the at least one logo of the band. The band may form a closed-loop when a closure member is used to secure the second end of the band to the buckle. Further, the buckle may have a switch that allows a user to control the light source. | 02-05-2015 |
Jie Ma, Itasca, IL US
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20100153572 | METHOD AND APPARATUS FOR IDENTIFYING AND SCHEDULING INTERNET RADIO PROGRAMMING - A client device includes a network interface for receiving media content streamed over a network and a media player for rendering the media content. The client device also includes a content scheduling module configured to identify, schedule and access over the network selected media content items in accordance with a user profile. The content scheduling module is configured to search an online database to identify the selected media content that conforms to the user profile. | 06-17-2010 |
Jing Ma, Buffalo Grove, IL US
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20080212914 | Transparent conducting components and related electro-optic modulator devices - New electro-optic (EO) phase modulator devices and geometries, as can be constructed using a transparent conductive component. | 09-04-2008 |
20110058766 | Transparent Conducting Components and Related Electro-Optic Modulator Devices - New electro-optic (EO) phase modulator devices and geometries, as can be constructed using a transparent conductive component. | 03-10-2011 |
Jing Ji Ma, Skokie, IL US
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20090030245 | METHOD FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE - A method for preparing 2,3,3,3-tetrafluoropropene comprising contacting a reactant comprising CCl | 01-29-2009 |
20090030249 | PROCESSES FOR PREPARING 1,1,2,3-TETRACHLOROPROPENE - Provided is a continuous process for preparing 1,1,2,3-tetrachloro-1-propene having the steps of catalytically dehydrochlorinating CH | 01-29-2009 |
Judy Ma, Long Grove, IL US
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20110119600 | System and Method for Management of Mobile Device - Described is a system and method for managing a mobile device by using a user device, wherein the mobile device includes a web server and one or more web pages including a home web page that is accessible via an assigned uniform resource locator (URL). The method includes establishing a local connection between the mobile device and the user device, and detecting the established local connection by the user device. The method further includes launching a web browser of the user device when the local connection is detected using an auto-launch application to access the home web page via the assigned URL using a hypertext transfer protocol (HTTP) request, and providing the home web page to the web browser by the web server in response to the HTTP request, wherein the home web page provides access to the mobile device and facilitates management of the mobile device. | 05-19-2011 |
Judy Jeong Ma, Long Grove, IL US
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20100105446 | APPARATUS AND METHOD FOR DELAYED ANSWERING OF AN INCOMING CALL - A wireless hands-free device is operable to communicate with a mobile communication device over a short-range wireless link. The hands-free device includes a transceiver, a memory, a delayed answering mode actuator (DAMA), and a processing device. The transceiver is operable to receive incoming call information from the mobile device over the short-range link. The incoming call information corresponds to an incoming call received by the mobile device over a wireless wide area network. The memory is operable to store one or more pre-recorded audio messages. The DAMA is activatable by a user of the hands-free device. The processing device is operable to: detect activation of the DAMA after receipt of the incoming call information, retrieve at least one pre-recorded audio message responsive to detecting activation of the DAMA, and provide the retrieved, pre-recorded audio message(s) to the transceiver for subsequent transmission to the mobile device over the short-range link. | 04-29-2010 |
Ke Ma, Chicago, IL US
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20090304647 | Production of Neural Stem Cells from Bone Marrow Tissue and Use Thereof - The invention provides reagents and methods for preparing mammalian mesenchymal-derived neural stem cells, especially autologous mesenchymal-derived neural stem cells, compositions thereof, and methods for using and administering the cells in a patient in need thereof. | 12-10-2009 |
Linwood Ma, Chicago, IL US
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20150095260 | SYSTEM AND METHODS FOR AGGREGATING INVESTMENT, EDUCATIONAL AND ENTERTAINMENT DATA AND DISPLAY OF THE DATA THEREOF - A system and method that aggregates investment, educational and entertainment data for consumers in a visually simplified way. In an embodiment, a system for such aggregated data can include a database containing investment data and investment education data and a processor in communication with the investment database and investment education database. In an exemplary embodiment, the processor may be included in a web server. The processor may be configured to execute instructions to provide a graphical user interface (GUI) to display visuals and accept queries from users according to at least one of the investment data and the investment education data. The GUI can include an educational portion and an investment portion. The processor can be configured to display through the GUI appropriate educational content from the educational portion and appropriate investment content from the investment portion. | 04-02-2015 |
20150324915 | System and Methods For Aggregating and Presenting Securities Trading Data - An improved trading platform may: (i) aggregate multiple orders related to a single trade position and present those orders for the trader; (ii) enable the user to select and apply default options trading strategies; (iii) aggregate trade positions, such as option positions having the same or similar expirations, for presentment in a single interface; and (iv) record and present trade position variations investigated by a trader in a simplified manner. | 11-12-2015 |
20160104241 | Mobile Securities Trading Platform - A mobile securities trading platform interface may include a mobile order entry portion, a mobile portfolio view portion, a mobile stock price view portion, an investment education video programming portion (which may also be provided on a non-mobile version of the platform), and a portion for following trades of other users on the platform (which may also be provided on a non-mobile version of the platform). | 04-14-2016 |
Pengfei Ma, Naperville, IL US
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20080295681 | Hydraulic system having an external pressure compensator - A hydraulic system for a machine is disclosed. The hydraulic system has a source of pressurized fluid and a fluid actuator with a first chamber. The hydraulic system also has a first valve configured to selectively fluidly communicate the source with the first chamber. The first valve further includes a first element movable between a flow passing, at which fluid from the source flows to the first chamber, and a flow blocking position, at which fluid from the source is blocked from the first chamber and a second element configured to selectively drain a control passageway associated with the first element to cause the first element to move. The hydraulic system further has a proportional pressure compensating valve configured to control a pressure of a fluid directed between the source and the first valve dependent upon the pressure of the control passageway. | 12-04-2008 |
20090071144 | Actuator control system implementing adaptive flow control - An actuator control system is disclosed. The actuator control system may have a pump and at least one actuator. The actuator control system may further have an actuator valve configured to control the at least one actuator. The actuator control system may also have a pump pressure sensor configured to determine a pump pressure value and a load pressure sensor configure to determine a load pressure value. The actuator control system may additionally have a controller configured to receive the pump pressure value and the load pressure value. The controller may further be configured to compare the pump pressure value and the load pressure value, and selectively implement a primary control strategy and a secondary control strategy based on the comparison. | 03-19-2009 |
20090217653 | Control system for recovering swing motor kinetic energy - This disclosure relates to a hydraulic system and method that converts the kinetic energy generated by the operation of a swing motor into hydraulic potential energy and reuses the hydraulic potential energy for swing motor acceleration. An accumulator can be provided for storing exit oil from the swing motor that is pressurized by the inertia torque applied on the moving motor via movement of an upper structure of a machine. The pressurized oil in the accumulator can be reused to accelerate the swing motor by supplying pressurized oil to the swing motor. | 09-03-2009 |
20100107623 | HYDRAULIC SYSTEM HAVING AN EXTERNAL PRESSURE COMPENSATOR - A hydraulic system for a machine is disclosed. The hydraulic system has a source of pressurized fluid and a fluid actuator with a first chamber. The hydraulic system also has a first valve configured to selectively fluidly communicate the source with the first chamber. The first valve further includes a first element movable between a flow passing, at which fluid from the source flows to the first chamber, and a flow blocking position, at which fluid from the source is blocked from the first chamber and a second element configured to selectively drain a control passageway associated with the first element to cause the first element to move. The hydraulic system further has a proportional pressure compensating valve configured to control a pressure of a fluid directed between the source and the first valve dependent upon the pressure of the control passageway. | 05-06-2010 |
20120151904 | HYDRAULIC CONTROL SYSTEM HAVING ENERGY RECOVERY - A hydraulic control system for a machine is disclosed. The hydraulic control system may have a tank, a pump configured to draw fluid from the tank and pressurize the fluid, a swing motor configured to receive the pressurized fluid and swing a body of the machine relative to an undercarriage, and a tool actuator configured to receive the pressurized fluid and move a tool relative to the body. The hydraulic control system may also have an energy recovery device configured to convert hydraulic energy to mechanical energy, a first accumulator configured to store waste fluid received from the swing motor, and a second accumulator configured to store waste fluid received from the tool actuator. Stored waste fluid from at least one of the first and second accumulators may be selectively discharged into the energy recovery device. | 06-21-2012 |
20120152368 | Independent Metering Valve with Flow Limiter - An independent metering valve (IMV) assembly is disclosed that includes a metering stem including an inlet. The IMV assembly also includes a hydro-mechanical control valve in communication with a fluid source and the inlet. The control valve also including a spool with a closed end and an open end. The control valve includes a biasing member that biases the control valve or spool towards an open position thereby establishing communication between the fluid source and the inlet. The control valve also including a load signal line providing communication between an outlet of the control valve upstream of the inlet and the closed end of the spool. Wherein high pressure in the load signal line allowing the control valve to move towards a closed position thereby overcoming bias of the biasing member and reducing flow to the inlet during a high pressure condition. | 06-21-2012 |
20130000094 | HYDRAULIC CONTROL SYSTEM HAVING ENERGY RECOVERY KIT - An energy recovery retrofit kit for a hydraulic control system is disclosed. The energy recover retrofit kit may have a first accumulator and a second accumulator. The energy recover retrofit kit may also have a recovery valve block fluidly connectable between an existing pump and an existing motor of the hydraulic system. The recovery valve block may be configured to selectively fluidly communicate the first and second accumulators with the existing motor. | 01-03-2013 |
20130000289 | HYDRAULIC CONTROL SYSTEM HAVING SWING MOTOR ENERGY RECOVERY - A hydraulic control system for a machine is disclosed. The hydraulic control system may have a work tool movable to perform an excavation cycle having a plurality of segments, a motor configured to swing the work tool during the excavation cycle, and a pump configured to pressurize fluid directed to drive the motor. The hydraulic control system may also have at least one accumulator configured to selectively receive fluid discharged from the motor and to discharge fluid to the motor during the plurality of segments, and a controller configured to implement a plurality of modes of operation. Each of the plurality of modes of operation includes a different combination of segments during which the at least one accumulator receives and discharges fluid. | 01-03-2013 |
20130000290 | ENERGY RECOVERY SYSTEM HAVING ACCUMULATOR AND VARIABLE RELIEF - A swing energy recovery system for a machine is disclosed. The swing energy recovery system may have a pump configured to pressurize fluid, a motor driven by a flow of pressurized fluid from the pump, and an energy recovery arrangement configured to receive pressurized fluid discharged from the motor and selectively supply pressurized fluid to the motor. The swing energy recovery system may also have a pressure relief valve associated with the motor, and a controller in communication with the energy recovery arrangement and the pressure relief valve. The controller may be configured to selectively adjust a setting of the pressure relief valve based on an operating condition of the energy recovery arrangement. | 01-03-2013 |
20130004278 | HYDRAULIC CONTROL SYSTEM HAVING SWING ENERGY RECOVERY - A hydraulic control system for a machine is disclosed. The hydraulic control system may have a pump configured to pressurize fluid, and a motor driven by a flow of pressurized fluid from the pump. The hydraulic control system may also have a first accumulator configured to receive pressurized fluid discharged from the motor and to selectively supply pressurized fluid to the motor, and a second accumulator configured to receive pressurized fluid discharged from the motor and selectively supply pressurized fluid to the motor. | 01-03-2013 |
20130004280 | HYDRAULIC CONTROL SYSTEM HAVING SWING MOTOR ENERGY RECOVERY - A hydraulic control system for a machine is disclosed. The hydraulic control system may have a work tool movable through segments of an excavation cycle, a motor configured to swing the work tool during the excavation cycle, at least one accumulator configured to selectively receive fluid discharged from the motor and to discharge fluid to the motor during the excavation cycle, and a controller. The controller may be configured to receive input regarding a current excavation cycle of the work tool, and make a determination based on the input that the current excavation cycle is associated with one of a set of known modes of operation. The controller may be further configured to cause the at least one accumulator to receive fluid and discharge fluid during different segments of the excavation cycle based on the determination. | 01-03-2013 |
20130152565 | HYDRAULIC SYSTEM HAVING ENERGY RECOVERY - A hydraulic system for a machine is disclosed. The hydraulic system may have a pump configured to pressurize fluid, a swing motor driven by pressurized fluid to swing a body of the machine relative to an undercarriage, and a first circuit fluidly connecting the pump to the swing motor. The hydraulic system may also have an energy recovery motor mechanically connected to the swing motor, at least one accumulator, and a second circuit fluidly connecting the at least one accumulator to the energy recovery motor. | 06-20-2013 |
20130247999 | HYDRAULIC ACCUMULATOR PRE-CHARGE PRESSURE DETECTION - A system including a hydraulic accumulator, a pressure sensor, a fluid source and a data processor to detect a pre-charge pressure is provided. The hydraulic accumulator includes first and second fluid chambers and a separator therebetween. The hydraulic accumulator has an associated pre-charge pressure. The pressure sensor is connected to the first fluid chamber. The data processor is connected to the pressure sensor. The data processor is configured to determine a first and second rate of pressure changes, and a transition pressure between the first and second rates. The approximate pre-charge pressure is determined based on the transition pressure. | 09-26-2013 |
20130253854 | HYDRAULIC ACCUMULATOR HEALTH DIAGNOSIS - A system to diagnose a health of a hydraulic accumulator is provided. The hydraulic accumulator includes a first fluid chamber, a second fluid chamber, and a separator. The hydraulic accumulator has an associated pre-charge pressure. The system further includes a pressure sensor, a fluid source, a data processor, and a comparator. The pressure sensor and the fluid source are connected to the first fluid chamber. The data processor is configured to determine a first and second rate of pressure changes, and a transition pressure between the first and second rates. The approximate pre-charge pressure is determined based on the transition pressure. The comparator is configured to compare at least one of the determined pre charge pressure and the frictional forces with a pre-determined threshold range of pre-charge pressure and the frictional forces associated with the hydraulic accumulator to diagnose the health of the hydraulic accumulator. | 09-26-2013 |
20130283777 | HYDRAULIC CONTROL SYSTEM HAVING ENERGY RECOVERY - A hydraulic control system is disclosed for use with a machine. The hydraulic control system may have a pump, a tank, and an actuator. The hydraulic control system may also have at least a first valve configured to control fluid flow between the pump, the tank, a first chamber of the actuator, and a second chamber of the actuator; a second valve fluidly disposed between the second chamber and the tank; and a third valve fluidly disposed between the first and second chambers. The hydraulic control system may further have a controller configured to selectively cause the second valve to block fluid flow from the second chamber of the actuator to the tank, and to selectively cause the third valve to fluidly communicate the first and second chambers of the actuator when the second valve blocks fluid flow from the second chamber of the actuator to the tank. | 10-31-2013 |
20130318955 | ELECTRO-HYDRAULIC SYSTEM FOR RECOVERING AND REUSING POTENTIAL ENERGY - A hydraulic system includes a hydraulic actuator, a pump configured to supply fluid to the hydraulic actuator, and a first accumulator fluidly connected to the hydraulic actuator. The first accumulator is configured to store fluid received from the hydraulic actuator. The hydraulic system also includes a motor drivingly connected to the pump and fluidly connected to the first accumulator. The motor is configured to receive the stored fluid from the first accumulator to drive the pump. The hydraulic system further includes a first discharge valve fluidly connected between the first accumulator and the hydraulic actuator. The first discharge valve is configured to supply the stored fluid from the first accumulator to the hydraulic actuator without the stored fluid from the first accumulator circulating through the pump. | 12-05-2013 |
20130340418 | Energy Storage Cylinder and Control System for a Moving Structural Member - An energy storage system is disclosed for use in a hydraulic system for moving a structural member such as a boom assembly. The system features at least one work cylinder and an additional energy storage cylinder that assists in raising and lowering functions by storing and withdrawing pressurized fluid from an accumulator. The pressurized fluid in the accumulator may be used for raising operations as well as digging and tamping operations. Further, the energy recovery features may be selectively disconnected during either a raising or lowering operation. | 12-26-2013 |
20140060018 | HYDRAULIC CONTROL SYSTEM - A hydraulic control system includes an implement movable to perform an excavation cycle having a plurality of segments, a variable displacement motor configured to swing the implement at a desired speed during the excavation cycle, and a pump configured to pressurize fluid directed to drive the motor. The system further includes an accumulator configured to selectively receive fluid discharged from the motor via a charge valve, and to discharge fluid to the motor via a discharge valve. The system includes a selector valve fluidly connected to the charge valve and the discharge valve. The system also includes a controller configured to vary displacement of the motor, resulting in the desired speed. | 03-06-2014 |
20140060023 | HYDRAULIC CONTROL SYSTEM HAVING SWING MOTOR ENERGY RECOVERY - A hydraulic control system is disclosed for use in a machine. The hydraulic control system may have a work tool, a motor configured to swing the work tool, a tank, a pump configured to draw fluid from the tank and pressurize the fluid, and a control valve operable to control fluid flow from the pump to the motor and from the motor to the tank via first and second chamber passages to affect motion of the motor. The hydraulic control system may also have an accumulator, and an accumulator circuit configured to selectively direct fluid discharged from the motor to the accumulator for storage and to direct stored fluid from the accumulator to the motor to assist the motor. The hydraulic control system may further have a selector valve configured to selectively connect a higher pressure one of the first and second chamber passages with the accumulator, and a single pressure relief valve disposed within the accumulator circuit and configured to relief pressure from opposing sides of the motor. | 03-06-2014 |
20140060024 | HYDRAULIC CONTROL SYSTEM HAVING SWING MOTOR RECOVERY - A hydraulic control system is disclosed for use with a machine. The hydraulic control system may have a tank, a pump, a swing motor, and at least one control valve configured to control fluid flow between the pump, the swing motor, and the tank. The hydraulic system may also have an accumulator configured to selectively receive pressurized fluid discharged from the swing motor and selectively supply pressurized fluid to the swing motor, at least one accumulator valve, and a controller. The controller may be configured to receive input indicative of a difference between desired and actual speeds of the swing motor, and determine if the swing motor is accelerating or decelerating based on the difference. The controller may also be configured to control the at least one accumulator valve to cause the accumulator to selectively receive or supply pressurized fluid only when the swing motor is accelerating or decelerating. | 03-06-2014 |
20140060025 | HYDRAULIC CONTROL SYSTEM HAVING ELECTRONIC FLOW LIMITING - A hydraulic control system is disclosed for use with a machine. The hydraulic control system may have a tank, a pump, an actuator, and a control valve configured to direct fluid from the pump to the actuator and from the actuator to the tank. The hydraulic control system may also have a pressure sensor to generate a first signal indicative of a pressure differential across the control valve, an operator input device to generate a second signal indicative of a desired movement of the actuator, and a controller. The controller may be configured to make a first determination of an opening amount of the control valve based on the second signal, and to make a second determination based on the first signal of whether the opening amount will result in overspeeding of the actuator. The controller may also be configured to reduce the opening amount based on the second determination. | 03-06-2014 |
20140060030 | HYDRAULIC ACCUMULATOR HEALTH MONITOR - A system and method to diagnose the operational health of a hydraulic accumulator are provided. The system can include a hydraulic accumulator selectively coupled to a hydraulic actuator, such as a swing motor. The accumulator can be charged by movement of the actuator. A pressure sensor can be associated with the accumulator to determine an accumulator pressure. A controller can be connected to the pressure sensor. The controller can determine a charge curve based on a relationship between an actuator operational parameter associated with the actuator movement and the accumulator pressure. The controller can compare the charge curve to a previously defined charge curve or range to determine an error between the charge curve and the previously defined charge curve or range. The degree of the error can be associated with the operational health of the accumulator, and if too large, the operator may be notified of the status. | 03-06-2014 |
20140060031 | HYDRAULIC CONTROL SYSTEM HAVING SWING ENERGY RECOVERY - A hydraulic control system for a machine is disclosed. The hydraulic control system may have a tank, a pump, and a fluid actuator. The hydraulic control system may further have an accumulator configured to selectively receive pressurized fluid discharged from the fluid actuator and selectively supply pressurized fluid to the fluid actuator. The hydraulic control system may also have a pressure sensor configured to generate a signal indicative of a pressure of the accumulator, a charge valve, a discharge valve, and a controller in communication with the control valve, the charge valve, and the discharge valve. The controller may be configured to detect stall of the fluid actuator, to make a comparison of the pressure of the accumulator with a threshold pressure, and to selectively move the charge valve to charge the accumulator or move the discharge valve to discharge the accumulator during the stall based on the comparison. | 03-06-2014 |
20140119867 | ENERGY RECOVERY SYSTEM HAVING INTEGRATED BOOM/SWING CIRCUITS - An energy recovery system for a machine is disclosed. The energy recovery system may have a boom circuit with at least a one linear actuator configured to move a work tool, and a boom accumulator configured to selectively collect pressurized fluid from the at least one linear actuator and to discharge pressurized fluid back to the at least one linear actuator. The energy recovery system may also have a swing circuit with a swing motor configured to move the work tool, and a swing accumulator configured to selectively collect pressurized fluid from the swing motor and discharge pressurized fluid back to the swing motor. The energy recovery system may further have a common accumulator passage fluidly connecting the boom accumulator and the swing accumulator. | 05-01-2014 |
20140119868 | ENERGY RECOVERY SYSTEM HAVING PEAK-SHAVING ACCUMULATOR - An energy recovery system for a machine is disclosed. The energy recovery system may have a tank, a pump configured to draw fluid from the tank and pressurize the fluid, an actuator, and an actuator control valve movable to direct pressurized fluid from the pump to the actuator and from the actuator to the tank to move the actuator. The energy recovery system may also have a motor connected to selectively receive fluid discharged from the actuator and mechanically connected to the pump, and an accumulator configured to store fluid discharged from the motor and to direct stored fluid to the motor to drive the pump. | 05-01-2014 |
20140150415 | Energy Recovery Hydraulic System - A method and system for accumulating and using recovered hydraulic energy that includes a hydraulic actuator and a pump configured to supply pressurized fluid to the hydraulic actuator. An energy recovery system includes a hydraulic motor, a charge valve and an accumulator configured to store fluid from the hydraulic actuator. The charge valve is operatively connected between the hydraulic actuator and the accumulator and between the accumulator and the hydraulic motor and is configured to place the hydraulic actuator in fluid communication with the accumulator and to place the accumulator in fluid communication with the hydraulic motor. A directional valve is operatively connected between the pump and the hydraulic actuator. The directional valve is configured to place the pump in fluid communication with the hydraulic actuator and to direct the flow of hydraulic fluid exiting the hydraulic actuator to the charge valve in an energy recovery mode. | 06-05-2014 |
20140174064 | HYDRAULIC CONTROL SYSTEM FOR SWING MOTOR - A hydraulic control system for a machine is disclosed. The hydraulic control system includes a swing control valve coupled between the swing motor, the pump and the tank to selectively control a fluid flow between the pump and the swing motor. The hydraulic control system includes a first conduit coupled between a first port of the swing control valve and a first chamber port of the swing motor. Further, a second conduit is coupled between a second port of the swing control valve and a second chamber port of the swing motor. A first chamber valve and a second chamber valve coupled to the first conduit and the second conduit and movable between a first open position, a second open position and a closed position. A controller is configured to selectively move one of the first and second chamber valves to reduce the fluid flow between the swing motor and the tank such that the pressurized flow discharged from the swing motor is directed to an accumulator fluidly coupled to each of the first and second conduits. | 06-26-2014 |
20140174065 | HYDRAULIC CONTROL SYSTEM FOR SWING MOTOR - A hydraulic control system for a machine is disclosed. The hydraulic control system includes a swing control valve coupled between the swing motor, the pump and the tank to selectively control a fluid flow between the pump and the swing motor. The hydraulic control system includes a first conduit coupled between a first port of the swing control valve and a first chamber port of the swing motor. Further, a second conduit is coupled between a second port of the swing control valve and a second chamber port of the swing motor. A first chamber valve and a second chamber valve coupled to the first conduit and the second conduit. A controller is configured to selectively move one of the first and second chamber valves to reduce the fluid flow between the swing motor and the tank such that the pressurized flow discharged from the swing motor is directed to an accumulator fluidly coupled to each of the first and second conduits. | 06-26-2014 |
20140208728 | Method and Hydraulic Control System Having Swing Motor Energy Recovery - A hydraulic control system includes a swing control valve between a pump and a swing motor to control flow to/from the swing motor, and a selector valve between an accumulator and the swing motor to regulate fluid flow. A controller is configured to receive inputs indicative of the pressure differential between the accumulator and conduit between the pump and swing motor, and a swing motor command, calculate a target swing motor flow based on the swing motor command input, and modulate operation of the swing control valve and the selector valve to regulate a swing speed. | 07-31-2014 |
20140230420 | ENERGY RECOVERY SYSTEM FOR HYDRAULIC MACHINE - An energy recovery system is disclosed for use with a hydraulic machine. The energy recovery system may have a tank, a pump configured to draw fluid from the tank and pressurize the fluid, an actuator, and an actuator control valve movable to direct pressurized fluid from the pump to the actuator and from the actuator to the tank to move the actuator. The energy recovery system may also have a motor mechanically connected to a rotary device and configured to selectively receive fluid discharged from the actuator, and at least one valve movable to selectively redirect fluid exiting the motor back to the actuator. | 08-21-2014 |
20140283915 | Hydraulic Control System Having Relief Flow Capture - A hydraulic circuit may be provided. The circuit may include: a pump to supply pressurized fluid to a circuit; a supply passageway coupled between the pump and the circuit; a relief flow passageway coupled between the supply passageway and a fluid reservoir; a relief flow capture circuit coupled to the relief flow passageway, the relief flow capture circuit including: a first valve configured to move from a closed position to an open position when a first pressure is detected; a second valve in fluid communication with the first valve, the second valve configured to move from a closed position to an open position when a second pressure is detected wherein the second pressure is lower than the first pressure; and an accumulator located between the first and second valves and in fluid communication with both the first and second valves, the accumulator configured to store fluid flowing through the first valve when the first pressure valve is in an open position, the accumulator further configured to outflow fluid through the second valve when the second valve is in an open position. | 09-25-2014 |
20140325972 | Hydraulic Hybrid Boom System Hydraulic Transformer - A hydraulic system includes a hydraulic actuator, an accumulator, an accumulator charge valve, and a hydraulic transformer fluidly connected between the accumulator charge valve and the accumulator. The hydraulic transformer includes a transformer motor mechanically coupled to a transformer pump. The accumulator charge valve is fluidly connected between the transformer motor and the hydraulic actuator. The transformer pump is sized to permit a maximum flow therethrough of no more than three-quarters of a flow permitted through the transformer motor. | 11-06-2014 |
20150101164 | HYDRAULIC CONTROL SYSTEM HAVING ENERGY RECOVERY KIT - An energy recovery retrofit kit for a hydraulic control system is disclosed. The energy recover retrofit kit may have a first accumulator and a second accumulator. The energy recover retrofit kit may also have a recovery valve block fluidly connectable between an existing pump and an existing motor of the hydraulic system. The recovery valve block may be configured to selectively fluidly communicate the first and second accumulators with the existing motor. | 04-16-2015 |
20150191897 | HYBRID APPARATUS AND METHOD FOR HYDRAULIC SYSTEMS - A hydraulic apparatus and a method of operating the hydraulic apparatus are disclosed. The hydraulic apparatus includes a flow control module, a first pump fluidly coupled to the flow control module via a first conduit, a first rotating group fluidly coupled to the flow control module via a second conduit, a first actuator fluidly coupled to the flow control module, a second actuator fluidly coupled to a second pump, a first accumulator, and a controller operatively coupled to the flow control module, the first charge valve, and the discharge valve. The first rotating group is configured to perform a pumping function and a motor function. The first accumulator is in selective fluid communication with the first actuator via a third conduit and a first charge valve, the second actuator via a fourth conduit and the first charge valve, and the first rotating group via a discharge valve. | 07-09-2015 |
20150192149 | APPARATUS AND METHOD FOR HYDRAULIC SYSTEMS - A hydraulic system and a method are disclosed. The hydraulic system includes a first pump having an outlet that is fluidly coupled to a first actuator via a first conduit, a second pump having an outlet that is fluidly coupled to a second actuator via a second conduit, a flow control module, and a controller operatively coupled to the flow control module, the controller being configured to operate the flow control module in a first mode, such that the flow control module effects fluid communication between the auxiliary pump and the first actuator and blocks fluid communication between the auxiliary pump and the first actuator, and operate the flow control module in a second mode, such that the flow control module effects fluid communication between the auxiliary pump and the second actuator and blocks fluid communication between the auxiliary pump and the second actuator. | 07-09-2015 |
20150197915 | Boom Cylinder Dig Flow Regeneration - A hydraulic system and methods for conserving energy in such system is disclosed. The hydraulic system includes a hydraulic actuator having a head end, a rod end and a piston disposed therebetween. The system also includes a pump that pumps fluid to the actuator, a first valve disposed downstream of the rod end, and a second valve disposed between the pump and the head end of the actuator. When the system is in a load overrunning condition, the second valve is partially closed to restrict the flow of a combined fluid. The combined fluid including fluid received from the pump and fluid received from the rod end of the actuator. When the system is in the light resistive load condition, the second valve is open to allow the combined fluid to flow through the second valve. | 07-16-2015 |
20150247304 | IMPLEMENT SYSTEM HAVING HYDRAULIC START ASSIST - An implement system is disclosed for use with a machine having an engine. The implement system may have a pump driven by the engine, a first actuator configured to receive pressurized fluid from the pump during operation of the engine, and at least a second actuator configure to receive pressurized fluid from the pump during operation of the engine. The implement system may also have an accumulator configured to receive pressurized fluid from the first actuator during operation of the engine, and to discharge fluid to the first actuator and to the at least a second actuator when the engine is shut down. | 09-03-2015 |
20150247509 | MACHINE HAVING HYDRAULIC START ASSIST SYSTEM - A hydraulic system is disclosed for assisting starting of a machine having an engine. The hydraulic system may include a work tool, a pump driven by the engine to pressurize fluid, and an actuator configured to receive pressurized fluid from the pump and move the work tool. The hydraulic system may also include an accumulator configured to selectively receive pressurized fluid from the pump and from the actuator, an electric starter configured to start the engine, and a motor selectively supplied with fluid from the accumulator to assist the electric starter in starting the engine. | 09-03-2015 |
20150247513 | MACHINE HAVING HYDRAULIC START ASSIST SYSTEM - A hydraulic system is disclosed for assisting starting of a machine having an engine. The hydraulic system may include a work tool, a pump driven by the engine to pressurize fluid, and an actuator configured to receive pressurized fluid from the pump and move the work tool. The hydraulic system may also include an accumulator configured to selectively receive pressurized fluid from the pump and from the actuator, an electric starter configured to start the engine, and a motor selectively supplied with fluid from the accumulator to assist the electric starter in starting the engine. | 09-03-2015 |
20150300384 | HYDRAULIC SYSTEM HAVING ENERGY RECOVERY - A hydraulic system for a machine is disclosed. The system may have a pump and a motor driven by pressurized fluid from the pump. An accumulator is configured to receive fluid discharged from the motor and to discharge fluid to the motor. The system may include a first valve to selectively communicate the higher pressure of conduits coupled between the pump and motor to the accumulator. A second valve and a third valve can be used to facilitate charging and discharging of the accumulator. The system may include a controller configured to implement a plurality of modes of operation, which each mode of operation may include a different combination of motor deceleration and motor acceleration segments during which the accumulator receives and discharges fluid, respectively. An input may be used to determine the segment of the work cycle. | 10-22-2015 |
Pengfel Ma, Naperville, IL US
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20080295508 | Force feedback poppet valve having an integrated pressure compensator - The force feedback poppet valve includes a valve body having a main chamber, a first port, and a second port. The force feedback poppet valve further includes a main poppet disposed within the main chamber and movable between an open position and a closed position to control fluid flow between the first port and the second port. The main poppet forms a control chamber within the main chamber. The force feedback poppet valve further includes a first passage communicating the control chamber with the second port, a second passage communicating the control chamber with the first port, and a pilot valve having a pilot poppet for controlling fluid flow between the control chamber and the first port through the second passage. The force feedback poppet valve further includes a pressure compensator disposed within the main poppet, and fluidly connected to the second port via the first passage. The force feedback poppet valve further includes a first spring coupled between the main poppet and the pilot poppet to provide a force proportional to a distance between the main poppet and the pilot poppet, and a second spring coupled between the pressure compensator and the pilot poppet to provide a force proportional to a distance between the pressure compensator and the pilot poppet. | 12-04-2008 |
Shengqian Ma, Woodridge, IL US
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20100170393 | MESH-ADJUSTABLE MOLECULAR SIEVE - A metal-organic framework-based mesh-adjustable molecular sieve (MAMS) exhibiting a temperature-dependent mesh size. The MAMS comprises a plurality of metal clusters bound with a plurality of amphiphilic ligands, each ligand comprising a hydrophobic moiety and a functionalized hydrophilic moiety, and wherein the metal clusters and amphiphilic ligand functionalized hydrophilic moieties form a metal cluster layer, the metal cluster layer forming at least one hydrophilic pore. On each side of the metal cluster layer, a plurality of associated amphiphilic ligand hydrophobic moieties cooperate with the metal cluster layer to form a tri-layer and a plurality of tri-layers are packed in a facing-spaced apart relationship to form at least one hydrophobic pore. | 07-08-2010 |
Shengqian Ma, Chicago, IL US
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20150180045 | NON-PLATINUM GROUP METAL ELECTROCATALYSTS USING METAL ORGANIC FRAMEWORK MATERIALS AND METHOD OF PREPARATION - A method of preparing a nitrogen containing electrode catalyst by converting a high surface area metal-organic framework (MOF) material free of platinum group metals that includes a transition metal, an organic ligand, and an organic solvent via a high temperature thermal treatment to form catalytic active sites in the MOF. At least a portion of the contained organic solvent may be replaced with a nitrogen containing organic solvent or an organometallic compound or a transition metal salt to enhance catalytic performance. The electrode catalysts may be used in various electrochemical systems, including an alkaline fuel cell. | 06-25-2015 |
Siyuan Ma, Chicago, IL US
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20120089809 | ACCESSING AN ENCODED DATA SLICE UTILIZING A MEMORY BIN - A method begins by a processing module receiving an encoded data slice to store and determining a slice length of the encoded data slice. The method continues with the processing module comparing the slice length to a plurality of bin widths, wherein each of the plurality of bin widths represents a fixed storage width of a plurality of memory bins within each of a plurality of memory containers, wherein a storage unit includes the plurality of memory containers. The method continues with the processing module selecting one of the plurality of memory containers based on the comparing to produce a selected memory container, identifying an available bin of the plurality of bins of the selected memory container, and storing the encoded data slice in the available bin. | 04-12-2012 |
20140164699 | EFFICIENTLY ACCESSING AN ENCODED DATA SLICE UTILIZING A MEMORY BIN - A method begins by receiving encoded data slices for storage. At least some of the encoded data slices have different data sizes. The method continues by accessing memory container information of the storage unit that includes a listing of virtual memory containers of the storage unit and, for each virtual memory container, bin identifier information. Each virtual memory contain is divided into bins, where the bins of a virtual memory container are of a substantially similar storage size. At least some of the virtual memory containers have different bin storage sizes. The method continues by mapping encoded data slices to virtual memory containers of the plurality based on data size of the encoded data slices and bin storage sizes of the virtual memory containers. The method continues by storing the encoded data slices in the virtual memory containers based on the mapping. | 06-12-2014 |
20150370638 | EFFICIENTLY ACCESSING AN ENCODED DATA SLICE IN A MEMORY CONTAINER UTILIZING A MEMORY BIN - A method includes determining whether a substantially similar data object to a data object is stored in a dispersed storage network (DSN). When the substantially similar data object is not stored in the DSN, the method includes dividing the data object into a plurality of data segments; encoding the plurality of data segments to produce a plurality of encoded data segments, wherein an encoded data segment of the plurality of encoded data segments includes a first number of data blocks and a second number of parity blocks; arranging the data blocks and the parity blocks of the plurality of encoded data segments into a matrix; establishing a set of encoded data slices from the matrix; and outputting the set of encoded data slices to storage units of the DSN for storage therein. | 12-24-2015 |
Wei Chuan Ma, Wauconda, IL US
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20130170531 | SELF-CORRECTING MULTIRATE FILTER - A system includes a polyphase multirate filter and a controller which, responsive to detecting a data stream: measures a current phase relationship between a current resampling filter input clock signal and a current multirate output clock signal; identifies, based on a mapping of the measured phase relationship within a pre-generated quantized mapping table, an initial polyphase filter coefficient index corresponding to the measured phase relationship; selects, based on the initial polyphase filter coefficient index identified, a corresponding polyphase filter component from within the multirate filter; configures the multirate filter to pass data from the data stream through the corresponding polyphase filter component to generate an initial output data sample; updates the initial polyphase filter coefficient index to a calculated next polyphase filter coefficient index value, in response to a request for generation of a next output data sample; and self-corrects the multirate filter responsive to a pre-identified error condition. | 07-04-2013 |
Xiang Ma, Chicago, IL US
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20150097834 | Photorealistic Rendering of Scenes with Dynamic Content - Methods for rendering three-dimensional photo meshes having dynamic content include: (a) detecting a shadow in a three-dimensional photo mesh; (b) removing the shadow from the three-dimensional photo mesh to form a modified photo mesh having a shadow-free texture; (c) simulating a real-time condition in the modified photo mesh; and (d) rendering an image that shows an effect of the real-time condition. Systems for rendering three-dimensional photo meshes having dynamic content are described. | 04-09-2015 |
20150120244 | METHOD AND APPARATUS FOR ROAD WIDTH ESTIMATION - A method, apparatus, and computer program product are disclosed to estimate road widths, irrespective of the presence of curbs or occlusions on the road surface. In the context of a method, a point cloud representing terrain is accessed. In one embodiment, the point cloud may be generated from lidar scanning during a trip. The point cloud is divided into sections representing portions of the terrain. The method further includes, for each section, identifying a ground planar surface of the section, estimating a drive plane of the section based on the ground planar surface and a drive direction, and calculating a road width of the section based on the ground planar surface and drive plane. The method may further include applying a smoothing algorithm to adjust the calculated road width of at least one section. A corresponding apparatus and computer program product are also provided. | 04-30-2015 |
20150130797 | Structure Model Creation from a Three Dimensional Surface - Constructing a three dimensional (3D) model of a structure may involve receiving a 3D surface representing a geographic area, the surface having elevation values associated with points of the surface and the geographic area comprises a structure having a geographic footprint smaller than the geographic area. Constructing a 3D model may also involve projecting the elevation values into a two dimensional (2D) plane. Further, a 3D model may be constructed of the structure by assigning model heights based on the elevation values projected into points of the 2D plane. | 05-14-2015 |
20150193963 | Systems and Methods for Creating an Aerial Image - Systems/apparatuses and methods are provided for creating aerial images. A three-dimensional point cloud image is generated from an optical distancing system. Additionally, at least one two-dimensional street level image is generated from at least one camera. The three-dimensional point cloud image is colorized with the at least one two-dimensional street level image, thereby forming a colorized three-dimensional point cloud image. The colorized three-dimensional point cloud image is projected onto a two-dimensional plane, using a processor, thereby forming a synthetic aerial image. | 07-09-2015 |
20150261785 | METHOD AND APPARATUS FOR MULTI-RESOLUTION POINT OF INTEREST BOUNDARY IDENTIFICATION IN DIGITAL MAP RENDERING - A method, apparatus and computer program product are provided for multi-resolution point of interest boundary identification in digital map rendering. A method is provided for receiving a point of interest selection indication. The method also includes receiving point of interest boundary data and map data associated with the selected point of interest from a memory. The boundary data is based on the physical shape of the structure or region associated with the point of interest. The method also includes overlaying point of interest boundary data on the map data; and causing the map data with point of interest boundary data overlay to be displayed on a user interface. | 09-17-2015 |
20160004915 | Lane Level Traffic - Lane level traffic levels are determined based on traffic camera images. A controller aligns a three-dimensional map with a traffic camera view, and identifies multiple lanes in the traffic camera view based on lane delineations of the three-dimensional map. The controller calculates a traffic parameter based on the multiple lanes in image frames from the traffic camera view and provides a traffic graphic based on the traffic parameter. | 01-07-2016 |
20160102986 | Apparatus and associated methods for use in lane-level mapping of road intersections - An apparatus comprising a processor and memory including computer program code, the memory and computer program code configured to, with the processor, enable the apparatus at least to: | 04-14-2016 |
Xiaopo Ma, Aurora, IL US
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20080310596 | X-Ray Tube Cooling Apparatus - A cooling apparatus ( | 12-18-2008 |
Xiaopo Ma, Naperville, IL US
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20080317210 | X-Ray Tube Cooling Collar - An x-ray tube assembly ( | 12-25-2008 |
Xiaoqiang Ma, Streamwood, IL US
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20090316053 | MOBILE DIGITAL TELEVISION DEMODULATION CIRCUIT AND METHOD - Pilot processing logic, depending upon which modulation scheme of wireless digital mobile television signals is being received, produces both fractional frequency offset and fractional timing offset for symbols for a respective modulation scheme whether the modulation scheme employs pilot or non-pilot information. As such, in operation, the pilot processing logic will produce both fractional frequency offset and fractional timing offset for symbols from different modulation schemes that employ pilot or non-pilot information so that multiple different modulation schemes of wireless digital mobile television signals can be received by a mobile device, for example, that employs the mobile television demodulating circuit. A dual operation circuit selects the mode of operation, namely the modulation scheme (e.g., T-DMB or DVB-T) of the digital mobile television signal that is being received. | 12-24-2009 |
20100232552 | SYNCHRONIZATION AND ACQUISITION FOR MOBILE TELEVISION RECEPTION - A method for synchronizing a receiver to a received signal begins by down-converting the received signal to a first baseband signal. A coarse frequency offset (CFO) of the first baseband signal is determined and is applied to the down-converting of the received signal to a second baseband signal. A fine frequency offset (FFO) of the second baseband signal is determined. The receiver is synchronized to the received signal using the CFO and the FFO. | 09-16-2010 |
20100238358 | ADJACENT CHANNEL POWER SCAN - A method and apparatus are disclosed for determining the presence of adjacent channel interference. Received digital signals are processed to detect the existence of strong channels adjacent to the channel of interest and control signals may be generated based on the detection of strong adjacent channels. The control signals are then used to adjust the signal power of the received signals. | 09-23-2010 |
Xiaoying Ma, Chicago, IL US
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20160060833 | Movable Sand Plow For Locomotive - A moveable plow for a locomotive suitable for operating in sandy environments is provided. The moveable plow comprises a body and a wearable lip. The body forms a curl at its top edge along substantially the entire body width to channel the flow of sand outwardly. The lip is removably affixed to the body and contacts a rail. The moveable plow is attached to a bogie by a pneumatically operated height adjusting mechanism that can raise or lower the moveable plow. The moveable plow and rail define a sweep angle equal to or greater than an angle of repose of the sand in the surrounding environment. | 03-03-2016 |
20160060834 | Locomotive Sand Plow System - A sand plow system for a locomotive is described. The sand plow system may comprise an adjustable plow configured for vertical adjustment between a lowered position in which the adjustable plow is in contact with the rails and a raised position in which the adjustable plow is suspended above the rails. The sand plow system may further comprise a fixed plow disposed axially forward of the adjustable plow with respect to a longitudinal axis of the locomotive. The fixed plow may be vertically raised above the rails by a distance of less than 150 millimeters. | 03-03-2016 |
Xiaoying Ma, Burr Ridge, IL US
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20100011984 | Self-Steering Radial Bogie - A self-steering system for a radial bogie of a railroad vehicle is provided. The self-steering system includes a plurality of links which connect the leading and trailing wheelsets to the bogie frame. Each of the links is adapted to provide a smaller degree of movement between the link and the wheelset at one end and a larger degree of movement between the link and the bogie frame at the other end. | 01-21-2010 |
Xinfeng Ma, Naperville, IL US
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20100281042 | Method and System for Transforming and Delivering Video File Content for Mobile Devices - A method and system for accessing video file content is provided. When a user encounters a web page with video content, the user can select to view the video content and wait for the server to transcode the video file and to stream the transcoded video file to the user's client device. Alternatively, the user may request that the server transcode the video file and to send the transcoded video file to the user's device, where the transcoded video file will be stored. While waiting for the video to be transcoded, the user may browse other websites, for example. In addition, a user may a request may request that the server transcode the video file and to stream the transcoded video file to the user's device in real-time. | 11-04-2010 |
Yi Ma, Champaign, IL US
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20110064302 | RECOGNITION VIA HIGH-DIMENSIONAL DATA CLASSIFICATION - A method is disclosed for recognition of high-dimensional data in the presence of occlusion, including: receiving a target data that includes an occlusion and is of an unknown class, wherein the target data includes a known object; sampling a plurality of training data files comprising a plurality of distinct classes of the same object as that of the target data; and identifying the class of the target data through linear superposition of the sampled training data files using l | 03-17-2011 |
Yijie Ma, Chicago, IL US
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20110052630 | Compositions and Methods Using Herpes Simplex Virus - Provided herein are methods and compositions for use in treating HSV-related conditions and diseases. | 03-03-2011 |
Ying Ma, Hoffman Estates, IL US
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20100241636 | E-MAIL RESPONSE SYSTEM - A method includes receiving, at a message processing system that includes a processor and a memory, a message from an originator. The message includes content related to a particular service of a plurality of services. The method includes selecting a set of potential responses to the message at the message processing system based on the particular service. The method also includes retrieving account information related to the originator of the message at the message processing system. The method further includes filtering the set of potential responses at the message processing system to provide a filtered set of responses. The set of potential responses is filtered based on the account information. When a first response has a confidence level that exceeds a threshold confidence level, the method includes sending the first response from the message processing system to the originator of the message without sending the filtered set of responses to an agent. | 09-23-2010 |
Yinqing Ma, Arlington Heights, IL US
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20090169690 | Increasing the Firmness of Process Cheese by Utilizing Ingredient Synergism - Process cheeses and methods for making process cheeses are provided herein. The process cheeses are provided with increased firmness despite high levels of whey protein contained therein by combining at least one high functionality thermally modified whey protein compound with specific casein or other protein sources to achieve a synergistic effect that increases the yield stress of the cheese compound. | 07-02-2009 |
20100028503 | Simultaneous Multiple Acervation Process - This invention relates to processes of preparing structured polymer matrix using two or more simultaneous multiple acervation mechanisms. In addition, the methods described herein provide flexible processes for forming structured polymer matrices from nearly any combination of polymers, preferably, although not limited to, food polymers. The simultaneous application of two or more acervation mechanisms unexpectedly gives novel matrices having improved texture and/or process efficiency that are superior to the polymer matrices produced by acervation mechanisms conducted individually or sequentially. | 02-04-2010 |
Yongmin Ma, Peoria, IL US
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20090312913 | STEERING SYSTEM HAVING MULTIPLE STRATEGIES AND VARIABLE DEADZONE - A steering system for a machine having at least one steerable traction device is disclosed. The steering system may have a steering actuator operatively connected to the at least one steerable traction device, and a travel speed sensor configured to generate a signal indicative of a travel speed of the machine. The steering mechanism may also have an operator input device having a deadzone. The deadzone may vary in response to the signal. The steering system may also have a controller in communication with the steering actuator, the operator input device, and the travel speed sensor. The controller may be configured to affect operation of the steering actuator in response to operation of the operator input device only when the operation of the operator input device deviates from the deadzone. | 12-17-2009 |
20110035112 | STEERING SYSTEM HAVING MULTIPLE STRATEGIES AND VARIABLE DEADZONE - A steering system for a machine having at least one steerable traction device is disclosed. The steering system may have a steering actuator operatively connected to the at least one steerable traction device, and a travel speed sensor configured to generate a signal indicative of a travel speed of the machine. The steering mechanism may also have an operator input device having a deadzone. The deadzone may vary in response to the signal. The steering system may also have a controller in communication with the steering actuator, the operator input device, and the travel speed sensor. The controller may be configured to affect operation of the steering actuator in response to operation of the operator input device only when the operation of the operator input device deviates from the deadzone. | 02-10-2011 |
Zhiqiang Ma, Champaign, IL US
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20090222825 | DATA RACE DETECTION IN A CONCURRENT PROCESSING ENVIRONMENT - A method for detecting race conditions in a concurrent processing environment is provided. The method comprises implementing a data structure configured for storing data related to at least one task executed in a concurrent processing computing environment, each task represented by a node in the data structure; and assigning to a node in the data structure at least one of a task number, a wait number, and a wait list; wherein the task number uniquely identifies the respective task, wherein the wait number is calculated based on a segment number of the respective task's parent node, and wherein the wait list comprises at least an ancestor's wait number. The method may further comprise monitoring a plurality of memory locations to determine if a first task accesses a first memory location, wherein said first memory location was previously accessed by a second task. | 09-03-2009 |
20090248689 | GENERATION OF SUGGESTIONS TO CORRECT DATA RACE ERRORS - A method of removing a first data race condition by generating a list of suggested solutions is provided. The method comprises detecting the first data race condition involving a shared resource that is accessed first by a first thread and then by a second thread; suggesting one or more solutions using a lockset mechanism; suggesting one or more solutions using a vector clock mechanism; suggesting that a user create a new synchronization object; suggesting that a user replicate the shared resource; and displaying the list to the user. | 10-01-2009 |
20100037025 | METHOD AND APPARATUS FOR DETECTING A DATA ACCESS VIOLATION - Machine-readable media, methods, apparatus and system for detecting a data access violation are described. In some embodiments, current memory access information related to a current memory access to a memory address by a current user thread may be obtained. It may be determined whether a cache includes a cache entry associated with the memory address. If the cache includes the cache entry associated with the memory address, then, an access history stored in the cache entry and the current memory access information may be analyzed to detect if there is at least one of an actual violation and a potential violation of accessing the memory address. | 02-11-2010 |
Zhong Ma, Naperville, IL US
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20130164378 | Special Prenatal Nutritional Supplement and Design Method Thereof - A special prenatal nutritional supplement, characterized as containing active ingredients such as nutrients (including at least one or more vitamins), minerals, or a mixture of pharmaceutical and standard food material. The design method of this special prenatal nutritional supplement is that the type and dosage of the ingredients are defined each day in accordance with the chronological order of the development of the fetus. The product is arranged or displayed like a calendar in a day by day order. | 06-27-2013 |