Patent application number | Description | Published |
20100065541 | PROPELLER DEICING SYSTEM - Systems and methods of deicing aircraft propellers include a deicing heater timing cycle, i.e. heater on/heater off schedule that is calculated as a function of ambient temperature and the airspeed of the aircraft. | 03-18-2010 |
20110158808 | METHOD FOR PROPELLER BLADE ROOT FLOW CONTROL BY AIRFLOW THROUGH SPINNER - A propeller blade root airflow system comprises a spinner for shrouding a propeller hub and propeller roots. The spinner has root holes disposed about a spinner circumference for receiving propeller roots, and airflow ducts disposed about a spinner circumference for drawing air into the spinner and away from the root holes. A method for preventing choked flow conditions between adjacent propeller blades in the area of a spinner in a propulsion system comprises rotating the spinner and propeller blades to produce propulsive thrust by driving an air stream past the propeller blades and spinner, and drawing a portion of the air stream into a plurality of ducts disposed within the spinner to prevent choked flow conditions. | 06-30-2011 |
20150104309 | AIRCRAFT CONTROL SYSTEM AND METHOD - An aircraft control system includes a co-axial, counter-rotating propeller shaft assembly. Also included is a first rotor operatively coupled to the propeller shaft assembly, the first rotor having a first plurality of blades mounted thereto, wherein the first plurality of blades are disposed at a substantially identical nominal pitch during rotation of the first rotor. Further included is a second rotor operatively coupled to the propeller shaft assembly, the second rotor having a second plurality of blades mounted thereto, wherein a pitch of the second plurality of blades is configured to cyclically change during rotation of the second rotor. | 04-16-2015 |
20150147181 | DIFFERENTIAL BLADE DESIGN FOR PROPELLER NOISE REDUCTION - A propeller is provided including a hub and a first blade group and a second blade group. The first blade group includes at least one first propeller blade and the second blade group includes at least one second propeller blade. The at least one first propeller blade and the at least one second propeller blade are mounted to and equidistantly spaced about the hub. The at least one first propeller blade of the first blade group has at least one geometric characteristic different from the at least one propeller blade of the second blade group. The different blade groups will generate different noise signatures over a wider range of frequencies allowing for the design of low noise propeller systems. | 05-28-2015 |
Patent application number | Description | Published |
20090243558 | ELECTRONIC BALLAST WITH HOLD-UP ENERGY STORAGE - An electronic ballast is provided, which includes an energy hold-up circuit that maintains operation of an AC discharge load, such as a gas discharge lamp, during at least a portion of a utility source outage. | 10-01-2009 |
20090251060 | ELECTRONIC BALLAST SYSTEM WITH LAMP INTERFACE NETWORK - An electronic ballast is provided, which includes first and second output nodes, first and second lamp outputs, and a lamp interface network. The lamp interface network includes an LC circuit coupled between at least one of the first and second output nodes and a respective one of the first and second lamp outputs. | 10-08-2009 |
20100073980 | POWER CONVERTER ASSEMBLY WITH ISOLATED GATE DRIVE CIRCUIT - A power converter assembly is provided. The power converter includes at least one switch, a high frequency oscillator coupled to the at least one switch and configured to generate a high frequency waveform based on direct current (DC) power provided thereto, and a power buffer coupled to the at least one switch and the high frequency oscillator and configured to control the operation of the at least one switch based on the high frequency waveform | 03-25-2010 |
20100078997 | AUTOMOTIVE ELECTRICAL SYSTEM FOR COUPLING POWER CONVERTERS WITH A TRANSFORMER - Systems and/or apparatus are provided for automotive electrical systems having power converters that are coupled by using a transformer. An electrical system comprises a boost converter, wherein a first winding of a transformer is coupled between the input node of the boost converter and a first reference node. The boost converter further includes a switch coupled between the first reference node and a second reference node and a diode coupled between the first reference node and the output node of the boost converter. An energy source is coupled between the input node and the second reference node and a first electrical load is coupled between the output node and the second reference node. The electrical system further comprises a voltage converter having an input coupled to a second winding of the transformer, and a second electrical load coupled to the output of the voltage converter. | 04-01-2010 |
20100102638 | SYSTEMS AND METHODS FOR DISCHARGING BUS VOLTAGE USING SEMICONDUCTOR DEVICES - Systems and methods are provided for discharging a high-voltage bus using semiconductor devices. A discharge system for a first voltage rail and a second voltage rail comprises a first semiconductor device coupled to a first voltage rail and a second semiconductor device coupled between the first semiconductor device and a second voltage rail. A control circuit is coupled to the first semiconductor device and the second semiconductor device. In response to a discharge condition, the control circuit is configured to activate the first semiconductor device and gradually activate the second semiconductor device, such that the energy potential between the first voltage rail and the second voltage rail is gradually dissipated through the semiconductor devices. | 04-29-2010 |
20110025248 | MULTI-PHASE DC/DC BOOST CONVERTER - A method and an apparatus are provided for balancing current for each of a plurality of similar phases of a DC/DC boost converter. The method includes the step of measuring a voltage drop of each of the plurality of similar phases at predetermined times by measuring the voltage drop across each phase switching device when current is flowing through the switch. The method also includes the steps of calculating current information for each of the plurality of similar phases in response to the voltage drop measured for each of the plurality of similar phases and balancing current for each of the plurality of similar phases in response to the current information of each of the plurality of similar phases. | 02-03-2011 |
20130255910 | VEHICLE OR ENVIRONMENT-CONTROLLED UNIT HAVING A MULTIPHASE ALTERNATOR WITH A PROTECTED HIGH-VOLTAGE BUS - A mobile environment-controlled unit, such as an over-the-road compartment trailer, having an environmental-control system, such as a refrigeration unit, powered by an alternator and having a high-voltage alternating current (AC) bus. The unit incorporates a high resistance ground scheme and can incorporate a solid-state input module to detect phase-chassis faults. This combination provides an improvement in protection for mobile applications that cannot have a voltage reference (or neutral point) solidly connected to earth ground. | 10-03-2013 |
20140339844 | VEHICLE OR ENVIRONMENT-CONTROLLED UNIT HAVING A MULTIPHASE ALTERNATOR WITH A PROTECTED HIGH-VOLTAGE BUS - A mobile environment-controlled unit, such as an over-the-road compartment trailer, having an environmental-control system, such as a refrigeration unit, powered by an alternator and having a high-voltage alternating current (AC) bus. The unit incorporates a high resistance ground scheme and can incorporate a solid-state input module to detect phase-chassis faults. This combination provides an improvement in protection for mobile applications that cannot have a voltage reference (or neutral point) solidly connected to earth ground. | 11-20-2014 |
Patent application number | Description | Published |
20140155413 | TrkA KINASE INHIBITORS, COMPOSITIONS AND METHODS THEREOF - The present invention is directed to compounds of formula I and 1a: which are tropomyosin-related kinase (Trk) family protein kinase inhibitors, and hence are useful in the treatment of pain, inflammation, cancer, restenosis, atherosclerosis, psoriasis, thrombosis, a disease, disorder, injury, or malfunction relating to dysmyelination or demyelination or a disease or disorder associated with abnormal activities of nerve growth factor (NGF) receptor TrkA. | 06-05-2014 |
20150141428 | TrkA Kinase Inhibitors, Compositions and Methods Thereof - The present invention is directed to benzyl urea compounds, which are tropomyosin-related kinase (Trk) family protein kinase inhibitors, and hence may be useful in the treatment of pain, inflammation, cancer, restenosis, atherosclerosis, psoriasis, thrombosis, a disease, disorder, injury, or malfunction relating to dysmyelination or demyelination or a disease or disorder associated with abnormal activities of nerve growth factor (NGF) receptor Trk-A, Trk-B and/or Trk-C. | 05-21-2015 |
Patent application number | Description | Published |
20100101952 | ELECTROPHORETIC CELL AND METHOD EMPLOYING DIFFERENTIAL MOBILITY - An electrophoretic cell and methods of switching an electrophoretic cell and moving charged species in an electrophoretic cell employ differential electrophoretic mobilities and a time-varying electric field. The methods include providing first and second charged species that are oppositely charged and have different mobilities. The method of switching further includes inducing a net motion of both of the charged species using the time-varying applied electric field. The induced net motion results in either the first charged species being moved toward the electrode and the second charged species remaining essentially motionless or both of the charged species being moved toward the same electrode. The electrophoretic cell includes the first and second charged species with opposite charge and different mobilities, and further includes the time-varying applied electric field that provides the net motion of the charged species. | 04-29-2010 |
20120020608 | Plasmonic Element With Waveguide Trapping - Various plasmonic elements with waveguide trapping are provided. In one embodiment, a plasmonic element includes a waveguide layer including a first surface through which incident light enters the waveguide layer. The waveguide layer includes a medium and an array of plasmonic structures disposed within the medium. The medium has dielectric properties. The resonant frequency of the plasmonic structures is responsive to the dielectric properties of the medium. The plasmonic element is configured to trap incident light scattered by the plasmonic structures in a waveguide mode. | 01-26-2012 |
20120118198 | ELECTRONIC INKS - Electronic inks are disclosed herein. One embodiment of the electronic ink includes a non-polar carrier fluid, a plurality of negatively charged colorant particles dispersed in the non-polar carrier fluid, a small molecular additive, and a charge director. Each of the negatively charged colorant particles includes a surface modified with an acidic functional group. The small molecular additive has at least two branches, each of which includes nitrogen or oxygen atoms. | 05-17-2012 |
20120190782 | DUAL COLOR ELECTRONICALLY ADDRESSABLE INK - A dual color electronically addressable ink includes a non-polar carrier fluid, a first colorant of a first color, and a second colorant of a second color that is different than the first color. The first colorant includes a particle core, and a basic functional group attached to a surface of the particle core. The second colorant includes a particle core, and an acidic functional group attached to a surface of the particle core. The acidic functional group and the basic functional group are configured to interact within the non-polar carrier fluid to generate a charge on the first colorant and an opposite charge on the second colorant. | 07-26-2012 |
20120241695 | ELECTRONIC INKS - Electronic inks are disclosed herein. The electronic ink includes a non-polar carrier fluid, a plurality of positively charged colorant particles dispersed in the non-polar carrier fluid, and a plurality of reverse co-micelles including a basic charge director and an acidic charge controlling agent. The basic charge director has a molecular weight that is within 5000 of a molecular weight of the acidic charge controlling agent. | 09-27-2012 |
20130141780 | System And Method For Tri-state Electro-optical Displays - There is provided a display including a display including a number of display cells ( | 06-06-2013 |
20140049809 | Reflective Display - A display element comprises a cell containing a fluid including a plurality of wells at the bottom of the cell. A luminescent material is within the cell for modulating light incident from the top of the cell and for returning luminescent light; and a dispersion of particles is contained within the fluid. The dispersion of particles is movable between a first state in which the particles are substantially contained within the plurality of wells and a second state in which the particles are distributed between the top and bottom of the cell, to control the intensity of luminescent light returned by the display element. | 02-20-2014 |
20140197369 | NANOPARTICLE-BASED MEMRISTOR STRUCTURE - A memristor structure has two electrodes sandwiching an insulating region, and includes a nanoparticle providing a conducting path between the two electrodes, wherein either the insulating region comprises an inorganic material and nanoparticle comprises a solid nanoparticle or a core/shell nanoparticle or the insulating region comprises an inorganic or organic material and the nanoparticle comprises a core/shell nanoparticle. | 07-17-2014 |
20140233879 | Luminescent Stacked Waveguide Display - A display includes at least two stacked waveguides ( | 08-21-2014 |
20140293578 | REFLECTIVE COLOR DISPLAY WITH LUMINESCENCE AND BACKLIGHTING - A reflective color display has at least a color pixel disposed to receive ambient light for front lighting and has a light source optically coupled to the color pixel to provide back light for backlighting. The color pixel has a first sub-pixel and a second sub-pixel. The first sub-pixel has a first luminescent layer with a luminescent material for converting a portion of the ambient light spectrum into light of a first color. An unpatterned mirror is disposed under the luminescent layer of the first sub-pixel and extends through the first and second sub-pixels. The unpatterned mirror reflects at least light of the first color while transmitting the back light to the first luminescent layer for conversion by the first luminescent material into light of the first color. | 10-02-2014 |
20140347601 | LUMINESCENT LAYER WITH UP-CONVERTING LUMINOPHORES - A luminescent layer includes a series of down-converting luminophores dispersed in a matrix to collect ambient light energy over a range of wavelengths longer than a desired color band and a set of up-converting luminophores dispersed in the matrix. The series of down-converting luminophores transfer the ambient light energy to the set of up-converting luminophores, and the set of up-converting luminophores emits at least a portion of the ambient light energy in the desired color band. | 11-27-2014 |
Patent application number | Description | Published |
20140074123 | NEEDLE REMOVAL DEVICES, SYSTEMS, AND METHODS - A needle removal device is provided for removing needles from suturing systems. In an embodiment, the needle removal device may include a base member configured to be selectively positioned substantially adjacent a proximal portion of a suturing system. The proximal portion of the suturing system may include a plurality of needle lumens. The needle removal device may also include a plurality of needle receptacles at least partially defined by the base member. The needle receptacles may be positioned and configured to generally correspond to the needle lumens of the suturing system. The needle receptacles may be further configured to selectively receive and grasp onto one or more needles extending proximally from the needle lumens of the suturing system. | 03-13-2014 |
20140074124 | NEEDLE HARVESTING DEVICES, SYSTEMS AND METHODS - A needle removal device is provided for removing needles from suturing devices and/or systems. In an embodiment, the needle removal device may be intended for use with a suturing device having one or more needle lumens. The needle removal device may include a first member having a first plurality of needle receptacles extending therethrough. The first needle receptacles may be configured and positioned to correspond to one or more of the one or more needle lumens of the suturing device. The needle removal device may also include a second member having a second plurality of needle receptacles extending therethrough. At least one of the first member or the second member may be moveable between a first position, wherein the first needle receptacles and the second needle receptacles are substantially aligned, and a second position, wherein the first needle receptacles and the second needle receptacles substantially unaligned. | 03-13-2014 |
20140074126 | REMOVING NEEDLES FROM A SUTURING DEVICE - Suturing systems and needle removal devices for more efficiently removing needles from suturing systems are provide. In some embodiments, a suturing system guide body includes one or more needle lumens that transfer corresponding needles circumferentially around the guide body. Thus, when the needles exit the needle lumens at the proximal end of the guide body, the needles are in closer proximity to one another for removal. Other embodiments include various needle capture devices tools used for removing needles from a suturing system. Needle capture devices and tools can include needle receptacles positioned and configured to generally correspond to the needle lumens of the suturing system. The needle receptacles may be further configured to selectively receive and grasp onto one or more needles extending proximally from the needle lumens of the suturing system. | 03-13-2014 |