Class / Patent application number | Description | Number of patent applications / Date published |
417048000 | ELECTRICAL OR GETTER TYPE | 81 |
20080260542 | Electroosmotic Pump System and Electroosmotic Pump - A projection is formed on a pump body of an electroosmotic flow pump so as to face a communication hole of a micro fluid chip. When the projection and the communication hole are fitted together, a first flow path of the pump and a second flow path of the micro fluid chip are communicated and the pump is fixed to the micro fluid chip. At the same time, the connection between the first flow path and the second flow path is sealed to prevent leakage of liquid gas, etc. to the outside. | 10-23-2008 |
20090010767 | ELECTRIC COMB DRIVEN MICROPUMP SYSTEM - An electric comb driven micropump system includes a piston, a comb actuator comb and a real-time monitoring device. The comb actuator may generate an electrostatic force after receiving a voltage, so as to actuate the piston to make a first displacement, which causes a fluid to enter into a cavity, wherein the voltage has a voltage value for determining the volume of the fluid entering into the cavity, and wherein as the voltage value of the voltage gradually decreases, the electrostatic forces also decreases, allowing the piston to gradually make a second displacement in a direction opposite to the first displacement driven by a spring, thus outputting the fluid from the cavity. The real-time monitoring device provides real-time information of the comb actuator. | 01-08-2009 |
20090041590 | APPARATUS, SYSTEM, AND METHOD FOR ELECTROCHEMICAL PUMP-BASED CHROMATOGRAPHY SEPARATIONS IN MICROFABRICATED DEVICES - Rapid microchip LC analysis with integrated electrolysis-based pumping is achieved with a monolithic microfluidic chip. A pressure-balanced sample injection approach allows introduction of pL-range sample volumes without valves or other components that are difficult to integrate in microdevices. The approach also eliminates dead volume between injection and separation. On-chip LC separation of amino acids with elution times of <40 s and good efficiency (3350 theoretical plates) is provided. | 02-12-2009 |
20090136362 | Electroosmosis Pump and Liquid Feeding Device - In an electroosmosis pump, a bubble separation member is provided at an exit side chamber so as to be separated from an exit side electrode, a gas vent member is provided at that side section of a pump container which is near the exit side electrode, and a gas vent member is provided at that side section of the pump container which is near an entrance side electrode. A self-filling mechanism is placed in an entrance side chamber, and the self-filling mechanism is composed of a liquid drawing member in contact with an electroosmosis material via the entrance side electrode, and of an air vent path formed between a member surrounding a side section of the liquid drawing member and the inner wall of the pump container. | 05-28-2009 |
20090155090 | AUXILIARY ELECTRODES FOR ENHANCED ELECTROSTATIC DISCHARGE - In general, the present invention relates to methods and apparatuses that achieve high gas flow rates through the use of an electrostatic pump. According to some aspects, the present invention relates to additional, auxiliary electrodes that generate increased ion current at lower voltages, which leads to greater pumping power than a corona wind discharge. According to further aspects, the invention provides for a directional emission of the ions. This eliminates the back flow of ions and improves the electro-fluid power conversion efficiency and pumping performance. According to yet further aspects, the invention enables the electrodes to be fabricated directly on a dielectric substrate, making the system mechanically rugged and easily fabricated. | 06-18-2009 |
20090196765 | DIELECTRIC BARRIER DISCHARGE PUMP APPARATUS AND METHOD - A dielectric element barrier discharge pump for accelerating a fluid flow. In one embodiment the pump has a first dielectric layer having a first electrode embedded therein and a second dielectric layer having a second electrode embedded therein. The first and second dielectric layers are further supported apart from one another to form an air gap therebetween. A third electrode is disposed at least partially in the air gap upstream of the first and second electrodes, relative to a direction of flow of the fluid flow. A high voltage supplies a high voltage signal to the third electrode. The electrodes cooperate to generate opposing asymmetric plasma fields in the gap that create an induced air flow within the gap. The induced air flow operates to accelerate the fluid flow as the fluid flow moves through the gap. | 08-06-2009 |
20090297364 | FUEL PUMP AND METHOD OF MANUFACTURING THE SAME - A fuel pump includes a case member defining a fuel passage and a discharge-side cover connected to the case member and defining an outlet port. A pump section has an inlet port and is connected to the case member. A motor section is housed in the case member for driving the pump section. A positive electrode terminal and a negative electrode terminal are supported by an insulative terminal support member fixed to the discharge-side cover. Base portions of the positive and negative electrode terminals are covered by insulative portions. The insulative portions are fitted in fitting holes of the discharge-side cover. The discharge-side cover has guide portions on its inner surface. The terminal support member has engagement projections on opposite side walls thereof. The engagement projections are guided by the guide portions to restrict the discharge-side cover from rotating with respect to the terminal support member. | 12-03-2009 |
20100034667 | Electrokinetic Micropump - The invention is directed to the elimination of changes of the chemical composition of a pumped liquid caused by introduction of strange components or by modification of original components. Another object of the invention is to provide the possibility of use of electrodes of the first order in order to increase productivity and decrease size and cost of the micropump. | 02-11-2010 |
20100104450 | AIR-STABLE ALKALI OR ALKALINE-EARTH METAL DISPENSERS - There are described dispensers ( | 04-29-2010 |
20100119379 | PUMP STAND - A vacuum pump stand ( | 05-13-2010 |
20100150738 | Electrohydrodynamic Micropump and Its Use - An electrohydrodynamic micropump having at least one pumping passage for pumping a liquid, wherein there is at least one electrode device for generating an electrical alternating field and at least one device for producing a temperature gradient in the liquid to be pumped, which is arranged in and/or on the at least one pumping passage. | 06-17-2010 |
20100202894 | SYSTEM AND METHOD FOR RE-BUILDING A PUMP - In accordance with one embodiment of the present disclosure, a method may include installing a first seal around a motor shaft. The method may also include installing a second seal around the motor shaft, wherein the second seal and the first seal may form a hydrodynamic seal when the motor shaft rotates. The method may further include installing a spacer in-between the second seal and the first seal. | 08-12-2010 |
20100284825 | Solid State Supersonic Flow Actuator and Method of Use - A method and device are provided for manipulating high-speed flows without moving aerodynamic structures. More particularly, a flow control actuator device is provided that is capable of producing a pulsating synthetic jet with high exhaust velocities for manipulating high-speed flows without moving aerodynamic structures. The high exhaust velocities of the actuator device may reach sonic levels of Mach 1 or greater. In one embodiment, the device may be constructed as an array of devices. In such an embodiment, each individual device is preferably reduced to a very small size. In such an embodiment, each individual device can then be fired in temporal patterns to create high-speed synthetic jets of air extending above the surface of the each device. | 11-11-2010 |
20100310383 | ION PUMP SYSTEM AND ELECTROMAGNETIC FIELD GENERATOR - It is an object of the present invention to provide an ion pump system etc. having a high air-exhausting capacity and vacuum-maintaining capacity and capable of adjusting drive modes suitable for the uses thereof The subject problem is solved by an ion pump system ( | 12-09-2010 |
20110020140 | MICRO PUMP - Provided is a micro pump having a simple structure. The micro pump includes a pump chamber including inflow and outflow passages through which a drive fluid flows, a first valve configured to open or close the inflow passage, a second valve configured to open or close the outflow passage, and a pump chamber heating and cooling unit configured to heat or cool the pump chamber. | 01-27-2011 |
20110033315 | MICROFLUIDIC PUMP - A microfluidic pump comprises a plurality of metal electrodes ( | 02-10-2011 |
20110097215 | Flexible Solid-State Pump Constructed of Surface-Modified Glass Fiber Filters and Metal Mesh Electrodes - An electroosmotic pump includes first and second electrodes which, during operation of the pump, are maintained at a potential difference of, for example, at least about 10V. A membrane intermediate the first and second electrodes includes fibers of an inorganic oxide, such as glass. A surface of the fibers may be functionalized to increase a charge on the membrane with, for example a silane derivative, such as a trialkoxysilane. A fluid in contact with the membrane is drawn through the membrane without the need for moving parts. | 04-28-2011 |
20110268585 | Two-phase heat transport device using electrohydrodynamic conduction pumping - An electrohydrodynamic conduction liquid pumping system having a vessel configured to contain a liquid therein, a single pair or multi-pairs of electrodes disposed in a circularly spaced apart relationship to each other inside the vessel and configured to be oriented in the liquid. A power supply is coupled to the electrodes and configured to generate electric fields in-between each electrode pair to induce a net radial pumping of the liquid. A heat source is provided to produce heat sufficient to boil and vaporize the liquid while non-vaporized liquid moving toward the heat source prevents over-heating of the heat source. A heat sink is configured to have a operating temperature below the vaporization temperature of the liquid so that contact of the vapor with the heat sink will condense the vapor into a liquid to replenish the liquid supply moving toward the heat source. | 11-03-2011 |
20120128508 | HOUSING HAVING SEPARATE GETTER CHAMBER FOR DEVICE OPERATING UNDER VACUUM - A housing for a device operated under at least one of a vacuum and a protective gas includes at least one housing interior space, at least one receiving region configured to receive at least one getter material, and a connection between the at least one housing interior space and the at least one receiving region. The connection includes a particle-impervious bond. | 05-24-2012 |
20120219430 | ELECTROKINETIC PUMP HAVING CAPACITIVE ELECTRODES - An electrokinetic pump achieves high and low flow rates without producing significant gaseous byproducts and without significant evolution of the pump fluid. A first feature of the pump is that the electrodes in the pump are capacitive with a capacitance of at least 10 | 08-30-2012 |
20120251336 | VACUUM ENHANCING SYSTEM OR NON-EVAPORABLE GETTER - Vacuum enhancing system or non-evaporable getter of the type used en solar-receptor vacuum tubes which comprises a series of non-evaporable getter material pads the geometry of which is that of a prism with rounded corners and said pads are drilled through the centre thereof and linked by means of a cable ending in a quick-fit closure that allows the fitting thereof to be automated. This system is placed downstream of the expansion-compensating device in the form of non-radial bellows in the longitudinal direction and in the void defined by the vessel that is the interface part between the absorber tube and the expansion-compensating device. A getter system is placed in a radial arrangement, at each of the two ends of the receptor tube, resulting in a receptor tube of completely symmetrical geometry. | 10-04-2012 |
20120282111 | SYSTEM AND METHOD OF DIFFERENTIAL PRESSURE CONTROL OF A RECIPROCATING ELECTROKINETIC PUMP - A method of controlling the output of an electrokinetic pump to deliver a target stroke volume includes applying a pump drive signal to the electrokinetic pump for a pump stroke time duration and then determining a volume of a delivery fluid pumped. Then, comparing the volume of the delivery fluid pumped to the target stroke volume; generate a new time interval for applying the pump drive signal. Then apply the pump drive signal to the electrokinetic pump for the new time interval. A system for delivery of fluid includes an electrokinetic pump under the control of an electronic controller. The electronic controller contains computer readable instructions to determine an output of the electrokinetic pump and then generate a stroke time delivery adjustment for precise pumping schemes. | 11-08-2012 |
20120282112 | GANGING ELECTROKINETIC PUMPS - An electrokinetic system includes a first electrokinetic pump, a second electrokinetic pump, a reservoir having delivery fluid therein, and a controller. The first electrokinetic pump is configured to provide a first range of flow rates. The second electrokinetic pump is configured to provide a second range of flow rates. The second range includes flow rates that are greater than the flow rates of the first range. The reservoir is fluidically attached to the first electrokinetic pump and the second electrokinetic pump. The controller is configured to apply voltage to one of the first or second electrokinetic pumps and then apply voltage to the other of the first or second electrokinetic pumps so as to vary the flow rate range of delivery fluid pump from the reservoir. | 11-08-2012 |
20120282113 | GEL COUPLING FOR ELECTROKINETIC DELIVERY SYSTEMS - A fluid delivery system includes a first chamber, a second chamber, and a third chamber, a pair of electrodes, a porous dielectric material, an electrokinetic fluid, and a flexible member including a gel between two diaphragms. The pair of electrodes is between the first chamber and the second chamber. The porous dielectric material is between the electrodes. The electrokinetic fluid is configured to flow through the porous dielectric material between the first and second chambers when a voltage is applied across the pair of electrodes. The flexible member fluidically separates the second chamber from the third chamber and is configured to deform into the third chamber when the electrokinetic fluid flows form the first chamber into the second chamber. | 11-08-2012 |
20120301324 | ELECTRO-OSMOTIC APPARATUS, METHOD, AND APPLICATIONS - A switchable adhesion device combines two concepts: the surface tension force from a large number of small liquid bridges can be significant (capillarity-based adhesion) and these contacts can be quickly made or broken with electronic control (switchable). The device grabs or releases a substrate in a fraction of a second via a low voltage pulse that drives electroosmotic flow. Energy consumption is minimal since both the grabbed and released states are stable equilibria that persist with no energy added to the system. The device maintains the integrity of an array of hundreds to thousands of distinct interfaces during active reconfiguration from droplets to bridges and back, despite the natural tendency of the liquid towards coalescence. Strengths approaching those of permanent bonding adhesives are possible as feature size is scaled down. The device features compact size, no solid moving parts, and is made of common materials. | 11-29-2012 |
20130039779 | ELECTROCHEMICAL MOTIVE DEVICE - An electrochemical motive device is described having an electrochemical cell and at least one device configured produce motion as a function of electrochemical gas produced by the electrochemical cell. One example of an electrochemical motive device is a pump having one pump chamber, and pump member that forces a pumping fluid through the chamber. An electrochemical cell provides for a transfer of gas from the anode to the cathode. A control portion is described for taking input from the electrochemical pump and controlling the voltage and current to the electrochemical cell. In one embodiment, multiple pumping chambers are configured, and in one embodiment two pumping chambers are connected. It is further described that the control portion may automatically adjust parameters as a function of inputs, including user interface inputs. | 02-14-2013 |
20130078112 | SUBLIMATION PUMP AND METHOD - A vacuum pump may comprise a grating, and a sublimation element. The grating may have a grating opening and a grating interior that may be bounded by at least one grating surface. The sublimation element may be located within the grating interior and may be configured to sublimate and form a reactive film on the grating interior upon heating of the sublimation element above the sublimation temperature. The reactive film may be effective to capture gas molecules entering the grating interior through the grating opening and contacting the reactive film. | 03-28-2013 |
20130078113 | SORPTION PUMP WITH MECHANICAL ACTIVATION OF GETTER MATERIAL AND PROCESS FOR CAPTURING OF ACTIVE GASES - A sorption pump working according to the principle of mechanical activation of reactive getter materials at ambient temperature is presented. Pumps of the given type allow maintaining vacuum in different devices and apparatuses by sorption of any active gases with a controllable rate. | 03-28-2013 |
20130156608 | ELECTROKINETIC PUMP DESIGNS AND DRUG DELIVERY SYSTEMS - The present invention provides a fluid delivery system having a first chamber, a second chamber and a third chamber; a flow-through pump element separating the first chamber from the second chamber; a moveable pump element separating the second chamber from the third chamber; a first outlet in communication with the third chamber; and second outlet in communication with the second chamber. Additionally, the present invention provides methods of operating a fluid delivery system having a first chamber, a second chamber and a delivery chamber by reducing the volume of the second chamber while increasing the volume of the delivery chamber without operation of a flow-through pump element that separates the second chamber from the first chamber. | 06-20-2013 |
20130195679 | ION PUMP SYSTEM - Disclosed is an ion pump system capable of efficaciously utilizing electrical fields and magnetic fields in all portions of a getter face, and thus of substantially improving exhaust efficiency. In particular, the present disclosure is based on the discovery that disposing a plurality of disc-shaped electrodes upon an internal casing ( | 08-01-2013 |
20140147290 | SYSTEM AND METHOD FOR CONTROLLING PLASMA INDUCED FLOW - A plasma actuator system includes a first electrode having a first slit formed in a first peripheral section of the first electrode. The first slit directs flow of a gaseous medium along a radial direction of the first electrode. Further, the plasma actuator system includes a second electrode coupled to the first electrode and is disposed concentrically around the first electrode. The second electrode includes a second slit formed in a second peripheral section for directing flow of the gaseous medium along the radial direction. Further, the system includes a power source coupled to the first and second electrode for supplying electric power to the electrodes for ionizing gaseous medium to generate plasma. | 05-29-2014 |
20140169986 | IONIZING PUMP STAGE - The invention relates to an ionizing pump stage, in particular for a vacuum pump, comprising an inlet for gas entering into the pump stage; an ionizing section communicating with the inlet in a gas-conductive manner and an ionizing device for ionizing the gas entered into the ionizing section; an acceleration device for accelerating the ionized gas present in the ionizing section in the conveying direction; and a neutralizing section following the ionizing section in the conveying direction and communicating with the ionizing section in a gas-conductive manner and a neutralizing device for the electrical neutralizing of the ionized gas entering into the neutralizing section. | 06-19-2014 |
20140219823 | MICROPUMP - A micropump configured to control flow of an insulation fluid includes: a rectangular channel | 08-07-2014 |
20140271238 | GRAPHENE-TROUGH PUMP SYSTEMS - The present invention relates to pump systems having graphene or other atomically thin electrically conductive materials supported by trough-shaped cavities. | 09-18-2014 |
20140369856 | GETTER PUMP - A getter pump is described. The getter pump has a casing, whose shape is a solid of revolution with a revolution axis, and a plurality of getter cartridges mounted within the getter pump casing, each cartridge having a linear central support and spaced getter elements mounted on the linear central support. A getter cartridge orientation plane containing the linear central support and parallel to the revolution axis and a getter cartridge positioning plane orthogonal to the revolution axis and intersecting the midpoint of a linear central support are defined. For each cartridge, the angle formed by the getter cartridge positioning plane with the linear control supports is equal to or less than | 12-18-2014 |
20160025083 | ELECTRO-OSMOTIC PUMP USING REVERSIBLE ELECTRODE REACTION AND FLUID PUMPING SYSTEM USING SAME - An electro-osmotic pump using a reversible electrode reaction is provided, the electro-osmotic pump using a reversible electrode reaction comprising: a membrane that allows movement of a fluid; and first and second electrodes that are arranged on both sides of the membrane, respectively, and composed of a porous material or structure to allow the movement of the fluid, and a material to cause a reversible electrochemical reaction, wherein the first and second electrodes are alternately and reversely supplied with a voltage to make the electrochemical reaction repeat alternately forward and backward, and as a result, the alternate change of the movement direction of the fluid generates a pumping force to repair the first and second electrodes. | 01-28-2016 |
20160069337 | GETTER PUMP - A getter pump is described. The getter pump has a casing and a getter cartridge mounted within the casing. Each cartridge has a linear central support and spaced getter elements mounted on the linear central support. Each cartridge is positioned along a plane orthogonal to the revolution axis and intersecting the midpoint of a linear central support. The angle formed by each positioning plane with its respective linear central support is comprised between 35° and 75°. | 03-10-2016 |
20160090976 | SYSTEMS AND METHODS FOR A DUAL PURPOSE GETTER CONTAINER - Systems and methods for a dual purpose getter container are provided. In certain embodiments, an atomic sensor device comprises a sensor body, the sensor body enclosing an atomic sensor; a getter container coupled to an opening in the sensor body, wherein a first opening in the getter container is coupled to the opening in the sensor body; and a second opening located on the getter container, wherein gas within the sensor body can pass through the second opening. Further, the device may include a getter enclosed within the getter container, the getter coating surfaces of the getter container, such that gas within the sensor body can enter the getter container and contact the getter. | 03-31-2016 |
20160115951 | HIGH-PERFORMANCE, LOW-VOLTAGE ELECTROOSMOTIC PUMPS WITH MOLECULARLY THIN NANOMEMBRANES - Thin pnc-Si membranes operate as high-flow-rate EOPs at low applied voltages. In at least some instances, this may be due to the small electrical resistance presented by the membrane and high electric fields across the molecularly thin membrane. The normalized flow rates of some pnc-Si EOPs may be 20 times to several orders of magnitude higher than other low-voltage EOPs. | 04-28-2016 |
20160141160 | ION PUMPS AND ION PUMP ELEMENTS - An ion pump includes an evacuateable envelope having a chamber. A first and a second cathode are disposed within the chamber and spaced apart from one another. An anode is spaced apart from and between the first and second cathodes. The anode has an anode body with a textured surface that defines capture regions for fixing material sputtered from the first and second cathodes and controlling size of sputter depositions shed from the anode. | 05-19-2016 |
20160196963 | System of devices and components of said system | 07-07-2016 |
20160252082 | ELECTROOSMOTIC PUMP | 09-01-2016 |
417049000 | Ionic with gettering | 13 |
20100034668 | VACUUM PUMPING SYSTEM WITH A PLURALITY OF SPUTTER ION PUMPS - In a vacuum pumping system with a plurality of sputter ion pumps the considerable reduction in its overall axial size and weight is achieved by utilizing a plurality of axially superimposed sputter ion pumps and a common magnetic circuit, which comprises a pair of external magnets located at opposite axial ends of the pumping system, one or more intermediate magnets arranged alternated with the sputter ion pumps and a ferromagnetic yoke, internally enclosing the external magnets and the one or more intermediate magnets. | 02-11-2010 |
20100098556 | Vacuum Conveyance System - It is an object of the present invention to provide a portable vacuum carrying system. | 04-22-2010 |
20100143159 | ION PUMP DEVICE - The above-mentioned problem is solved by an ion pump ( | 06-10-2010 |
20100247333 | Sputter ion pump - A sputter ion pump includes one vacuum chamber, two parallel anode poles and one cold cathode electron emitter. The vacuum chamber includes at least one aperture located in an outer wall thereof. The two parallel anode poles are positioned in the vacuum chamber and arranged in a symmetrical configuration about a center axis of the vacuum chamber. The cold cathode electron emission device is located on or proximate the outer wall of the vacuum chamber and faces a corresponding aperture. The cold cathode electron emission device is thus configured for injecting electrons through the corresponding aperture and into the vacuum chamber. The sputter ion pump produces a saddle-shaped electrostatic field and is free of a magnetic field. The sputter ion pump has a simplified structure and a low power consumption. | 09-30-2010 |
20110014063 | COMBINED PUMPING SYSTEM COMPRISING A GETTER PUMP AND AN ION PUMP - A combined pumping system ( | 01-20-2011 |
20110103975 | SPUTTER ION PUMP WITH ENHANCED ANODE - A sputter ion pump including an evacuateable envelope having a chamber, first and second cathodes and an anode disposed in the chamber. The anode can have an outer layer of a non-evaporable getter (NEG) material so as to permit NEG pumping of gases by the anode. In another aspect of the invention, the anode can be formed with spaced-apart first and second sheet portions disposed in juxtaposition to each other and having a plurality of holes extending through the sheets for forming a plurality of anode cells. | 05-05-2011 |
20110142686 | VACUUM PUMP - A differentially pumped mass spectrometer system comprises a mass spectrometer having first and second pressure chambers through which, during use, ions are conveyed along a path. A pump assembly for differentially evacuating the chambers is attached to the mass spectrometer. The pump assembly comprises a housing attached to the mass spectrometer and a cartridge inserted into the housing. The cartridge has a plurality of inlets each for receiving fluid from a respective pressure chamber and a pumping mechanism for differentially pumping fluid from the chambers. The cartridge is inserted into the housing such that the pumping mechanism is inclined relative to the ion path, but with the cartridge protruding into the mass spectrometer to such an extent that at least one of the inlets at least partially protrudes into its respective chamber without crossing the ion path. | 06-16-2011 |
20110311372 | Pump Devices, Methods, and Systems - A membrane-based electroosmotic pump, having catalyst regions on electrodes, can pump a fluid without applying an external voltage. Chemical reactions of fluid components on the catalyst regions on the electrodes can induce an electric field that generates an electroosmotic flow through channels of the membrane. In one embodiment, a pump comprising platinum and gold electrodes can generate the flow of the fluid containing hydrogen peroxide through channels of the membrane. In another embodiment, a pump comprising gold electrodes, on which glucose oxidase and laccase are deposited, can generate the flow of the fluid containing glucose. | 12-22-2011 |
20120014814 | COMBINED PUMPING SYSTEM COMPRISING A GETTER PUMP AND AN ION PUMP - A combined pumping system comprising a getter pump and an ion pump is described. The getter pump and the ion pump are mounted in series on a same flange and are respectively arranged on opposite sides thereof so that both getter and ion pumps conductance are maximized towards gas flux sources in a vacuum chamber in order to improve the vacuum level of the system. | 01-19-2012 |
20140271239 | SPARK SUPPRESSION BALLAST CLOSELY COUPLED TO EMITTER ELECTRODE OF ION GENERATOR - By directly connecting, ballast to an emitter electrode of an ion generator (e.g., a corona-discharge device), a rapid and self-corrective reduction in emitter-to-collector voltage may be provided responsive to an increase in current characteristic of incipient sparking discharge. Voltage levels in the emitter-to-collector gap can be rapidly reduced based on voltage drop across the ballast that, while negligible under nominal ion current conditions, transiently increases in the event of a sparking discharge. As a result, the portion of supply voltage (typically multi-KV supply voltage) across the emitter-to-collector gap is transiently reduced to levels below a current breakdown voltage and, indeed, field intensity proximate to the emitter is transiently reduced below levels otherwise necessary to sustain ion generation. | 09-18-2014 |
20150010409 | MEMBRANE VACUUM PUMP - A membrane vacuum pump includes at least one membrane pump stage, at least one inlet valve for a process gas to be conveyed associated with the membrane pump stage, and at least one gas ballast valve for the supply of a ballast gas. The flow path for the ballast gas, leading through the gas ballast valve, opens into the flow path for the process gas behind the inlet valve in the direction of flow of the process gas. | 01-08-2015 |
20150017022 | SURFACE ADSORPTION VACUUM PUMPS AND METHODS FOR PRODUCING ADSORBATE-FREE SURFACES - Methods for pumping a chamber to generate substantially adsorbate-free surfaces are described. Pumping systems for achieving a vacuum based on surface adsorption are also described. | 01-15-2015 |
20150311048 | MICRO HYBRID DIFFERENTIAL/TRIODE ION PUMP - An ion pump includes at least one electron source configured to emit electrons into the ion pump; at least one cathode positioned across the ion pump from the at least one electron source; a high-voltage grid positioned between the at least one electron source and the at least one cathode. The high-voltage grid is configured to draw the electrons in between the at least one electron source and the at least one cathode where the electrons collide with gas molecules causing the gas molecules to ionize. The at least one cathode is configured to draw ionized gas molecules toward the at least one cathode such that the ionized gas molecules are trapped by or near the at least one cathode. | 10-29-2015 |
417050000 | Electromagnetic | 21 |
20080267785 | Drill rig apparatuses with directly driven shaft & drilling fluid pump systems - A drilling rig system with a main shaft or shaft-like structure driven directly by an AC motor; the system in one aspect for pumping fluid (e.g., but not limited to, drilling fluid), the system having, in certain aspects, pump apparatus with a pumping section and a motor section, the pumping section having an inlet and an outlet, the motor section having a drive shaft for connection to a pump pinion shaft for reciprocating in and out of the pumping section to alternately suck fluid into the inlet and pump fluid out the outlet, and the motor being directly connected to the pump pinion shaft, and methods for using such a system. | 10-30-2008 |
20080279698 | CONTROLLED MAGNETOHYDRODYNAMIC FLUIDIC NETWORKS AND STIRRERS - The present invention relates to controlled, magnetohydrodynamically-driven, fluidic networks containing a plurality of individually controlled branches. The branches consist of conduits equipped with pairs of electrodes that are controlled by electrode controllers. In operation, the network is placed within a magnetic field and potentials or currents are applied across electrode pairs within the various branches of the network in specifically determined magnitudes and polarities for specifically determined time intervals in accordance with an activation sequence that may be determined by an algorithm. Placed within a temperature gradient, at least a part of the network can act as a thermal cycler for use in biological interactions that employ temperature variations. The invention also relates to magnetohydrodynamic stirrers comprising a conduit or cavity having at least two electrodes disposed in such an orientation that, upon the application of a potential or current across the electrode pair within a magnetic field, secondary flows such as chaotic advection is generated. | 11-13-2008 |
20090285695 | MAGNETIC INDUCTION PUMP - A magnetic induction pump for pumping molten metal. The pump includes a motor and a shaft operatively connected to the motor. The pump further includes at least one bipolar permanent magnet operatively connected to the shaft and a conduit for the passage of molten metal. The motor rotates the shaft and magnet about the conduit inducing eddy currents in the molten metal in the conduit which react with the moving magnetic field to produce force to pump the metal through the conduit with the metal coming into contact with only an interior surface of the conduit. | 11-19-2009 |
20100158703 | ELECTRIC FLUID PUMP AND MOLD FOR INSERT-MOLDING CASING OF ELECTRIC FLUID PUMP - An electric fluid pump includes a casing, a rotor arranged in the casing, and a shaft member supported by the casing and including a shaft portion extending in the casing in a direction of an axis of the shaft member, having a first end portion arranged at one axial end of the shaft member and a second end portion arranged at the other axial end of the shaft member, and supporting the rotor, a collar portion arranged at the first end portion of the shaft portion and embedded in the casing, and a stepped section arranged between the shaft portion and the collar portion, positioned closer to the second end portion of the shaft portion than the first end portion of the shaft portion, and configured to have an end face facing the second end portion and serving as a bearing surface on which the rotor is rotatably supported. | 06-24-2010 |
20110020141 | MICROFLUIDIC DEVICE AND METHOD - The present invention relates to a microfluidic device and a corresponding method for pumping of high conductivity liquids comprising: —a microfluidic channel ( | 01-27-2011 |
20110129357 | Pumping Mud By Electrohydrodynamic Propulsion - A section of riser casing urges drilling mud upward from the sea floor to reduce head pressure associated with pumping drilling mud through riser casing in dual-gradient drilling operations. The section of riser casing may use an electromagnet, two or more electrodes, or a combination of electromagnets and electrodes to urge drilling mud having electrohydrodynamic properties through the riser casing. | 06-02-2011 |
20110129358 | PUMPING MUD BY ELECTROHYDRODYNAMIC PROPULSION - A section of riser casing urges drilling mud through the riser, either upward from the sea floor to reduce head pressure or downward toward the wellbore. The section of riser casing may use an electromagnet, two or more electrodes, or a combination of electromagnets and electrodes to urge drilling mud having electrohydrodynamic properties through the riser casing. | 06-02-2011 |
20110150667 | MEMS ELECTROSTATIC FLUIDIC PUMPS AND VALVES - In various embodiments, a pump is provided that includes a microfluidic channel and a plurality of electrodes for electrostatically translating a target fluid along the channel from an inlet to an outlet. In other embodiments, a valve includes a microfluidic channel, a reservoir in fluidic communication with the channel, and an electrode for electrostatically drawing a fluid from the reservoir into the channel so as to block the flow of other fluids through the channel. | 06-23-2011 |
20110300002 | Ceramic Element - A heating element can comprise a ceramic material doped with various elements. The heating element can be heated by forcing a fuel to flow through the ceramic material, where the fuel interacts with the dopants. The interaction can produce energy in the form of heat. Inventive aspects of the present material include apparatus and methods for modulation of the heat energy, physical features providing for an increase in the rate of heat release, optimization of materials and material morphology for quantity and efficiency of heat release and provision for fueling and maintenance. | 12-08-2011 |
20120070314 | MICROPUMP - The invention relates to a positive displacement pump, constructed in microsystem technology, which is preferably used as a vacuum pump. | 03-22-2012 |
20120244013 | ELECTROMAGNETIC PUMP - An electromagnetic pump includes a cylinder with a stepped inner diameter with first and second inner diameters. A piston inside the cylinder, with a stepped outer diameter including first and second outer diameters slidable on the respective inner diameters, defines first and second fluid chambers. Reciprocal movement of the piston produces a greater change in volume in the first chamber than the second chamber. An electromagnetic portion moves the piston to decrease the volume of the first chamber and increase the volume of the second chamber. A biasing member moves the piston to increase the volume of the first chamber and decrease the volume of the second chamber. A first valve allows fluid to flow to the first chamber and prohibits reverse flow. A second valve embedded in the piston allows fluid to flow from the first chamber to the second chamber and prohibits reverse flow. | 09-27-2012 |
20120244014 | ELECTROMAGNETIC PUMP - An electromagnetic pump including a piston that reciprocates inside a cylinder; an electromagnetic portion and a biasing member that respectively forwardly and backwardly move the piston; a support for the biasing member that defines a chamber with the cylinder and the piston; a valve incorporated into the support member that allows fluid to move from an intake port to the chamber and prohibits reverse flow; and a valve that allows the fluid to move from the chamber to a discharge port and prohibits reverse flow. The support member includes a bottomed hollow portion accommodating at least a portion of the intake on-off valve, and a hole providing communication between a bottom portion of the hollow portion on the chamber side and the chamber. The support member includes a portion that supports the biasing member, and a portion that communicates with the hole and projects from the support toward the piston. | 09-27-2012 |
20130343913 | DIAPHRAGM PUMP - An apparatus that includes a chamber. The chamber includes an inlet via which process fluid enters the chamber and an outlet via which the process fluid exits the chamber. A diaphragm is fixed in position in the chamber at a periphery of the diaphragm. The diaphragm includes a magnetic fluid therein. | 12-26-2013 |
20140003964 | ELECTROHYDRODYNAMIC (EHD) FLUID MOVER WITH FIELD BLUNTING STRUCTURES IN FLOW CHANNEL FOR SPATIALLY SELECTIVE SUPPRESSION OF ION GENERATION | 01-02-2014 |
20140023520 | Controlled Magnetohydrodynamic Fluidic Networks and Stirrers - The present invention relates to controlled, magnetohydrodynamically-driven, fluidic networks containing a plurality of individually controlled branches. The branches consist of conduits equipped with pairs of electrodes that are controlled by electrode controllers. In operation, the network is placed within a magnetic field and potentials or currents are applied across electrode pairs within the various branches of the network in specifically determined magnitudes and polarities for specifically determined time intervals in accordance with an activation sequence that may be determined by an algorithm. Placed within a temperature gradient, at least a part of the network can act as a thermal cycler for use in biological interactions that employ temperature variations. The invention also relates to magnetohydrodynamic stirrers comprising a conduit or cavity having at least two electrodes disposed in such an orientation that, upon the application of a potential or current across the electrode pair within a magnetic field, secondary flows such as chaotic advection is generated. | 01-23-2014 |
20140079561 | PERMANENT MAGNET TYPE CYLINDRICAL MOLTEN-METAL AGITATOR AND MELTING FURNACE WITH PERMANENT MAGNET TYPE SUCTION PUMP - There is provided an energy-saving agitator that suppresses the amount of generated heat, is easy to use and carry out maintenance, has flexibility in an installation position, and can also adjust an agitating ability. The agitator includes a furnace body that includes a molten metal room storing a molten metal, and an agitating unit that agitates the molten metal stored in the furnace body. The agitating unit includes a molten-metal driving room-forming part that is disposed in the molten metal room, applies a driving force to the molten metal, and forms a driving room of which both ends are opened; a pair of electrodes that is disposed in the driving room and makes current flow in the driving room under the presence of the molten metal; and a magnetic field unit which is formed of a permanent magnet disposed outside the furnace body, of which one pole of an N pole and an S pole faces the furnace body so that magnetic lines of force generated from the one pole cross the current, and which generates an electromagnetic force for driving the molten metal from one end toward the other end in the driving room. | 03-20-2014 |
20140341753 | HEATING ELEMENTS - A heating element and a system of heating elements are disclosed. The heating element includes a body that is permeable to a fuel species and that includes a dopant with an affinity for the fuel species. Reactions of the fuel species at the dopant generate heat. Magnetic and electric fields are utilized to move the fuel species through the heating element. | 11-20-2014 |
20160003229 | ELECTROMAGNETICALLY-ACTUATED MICROFLUIDIC FLOW REGULATORS AND RELATED APPLICATIONS - A variable, closed-loop apparatus for regulating a microfluidic flow that employs a low-power deflection assembly, which is surface-mounted over a flexible membrane overlying a chamber integrated into a microfabricated platform. A flexible membrane, movable between two positions, sealingly overlies the chamber. One of the positions of the membrane restricts the flow through the chamber to a greater degree than the other position. A deflection assembly disposed on the substrate over the membrane unidirectionally deflects the membrane, thereby regulating the flow through the chamber. | 01-07-2016 |
20160053750 | MAGNETIC SYSTEM FOR ISOLATED CHAMBER PUMPS - Vibrating liquid pump with an electromagnetic system comprising a coil ( | 02-25-2016 |
20160177931 | Electroosmotic Pump and Fluid Pumping System Including the Same | 06-23-2016 |
20160177932 | Pumping System for Gaseous and Liquid Media | 06-23-2016 |
417051000 | Getter heating, vaporizing, or regeneration | 5 |
20090202362 | GETTER PUMP AND VACUUM COATING INSTALLATION COMPRISING A GETTER PUMP - A highly efficient getter pump with low maintenance requirements is applied to a vacuum coating installation, allowing a substrate to be coated to remain uncontaminated by a dusting of getter material. The getter pump comprises a pump housing with an exposure opening. The housing has a getter body, of getter material that essentially closes the exposure opening and can move in relation to the exposure opening. An inner sub-section of the surface of the getter body points towards the interior of the pump housing and an outer sub-section points towards the exterior of the pump housing through the exposure opening. The positions of the inner and outer sub-sections are interchangeable by movement of the getter body. The getter pump is equipped with a device for removing getter material from the inner sub-section. | 08-13-2009 |
20100034669 | Reusable Vacuum Pumping Apparatus with Nanostructure Material - According to one embodiment, a vacuum system comprises a vacuum chamber, a construct of nanotubes, and a heat source. The vacuum chamber contains one or more gases. The construct of nanotubes is located proximate to the vacuum chamber and is operable to absorb or adsorb gases from the vacuum chamber. The hear source is located proximate to the construct of nanotubes and is operable to heat the construct of nanotubes such that the construct of nanotubes desorbs the gases from the vacuum chamber. | 02-11-2010 |
20140056722 | PUMP AND ACTUATOR - A first surface of a porous medium is in contact with a first space. A second surface of the porous medium is in contact with a second space. The first space is in communication with the second space via the pores of the porous medium. Light in a wavelength range where the material of the porous medium exhibits light absorption properties is applied to the first surface of the porous medium from a light source, so that energy of the applied light can be efficiently absorbed into the porous medium from its first surface, and the first surface of the porous medium can be efficiently heated. As a result, a thermal transpiration flow can be efficiently generated in the porous medium, and a pressure difference can be efficiently produced between the first space and the second space. | 02-27-2014 |
20140072452 | APPARATUS AND METHOD FOR SHIELDING A CONTROLLED PRESSURE ENVIRONMENT - An apparatus for shielding a controlled pressure environment, including a shield assembly with: a gate disc arranged for location in a chamber and including a first continuous surface facing an opening in the chamber and including an outer circumference extending past the opening in a radial direction orthogonal to a longitudinal axis passing through the chamber and the opening; and an at least one actuator arranged to displace the gate disc in an axial direction parallel to the longitudinal axis. The opening is arranged for connection to an inlet of a vacuum pump. In an example embodiment, the thermal system attains and maintains thermal equilibrium in the chamber and/or to shields the chamber from unwanted thermal affects by heating or cooling the gate disc to offset cooling or heat generated by the vacuum pump. For example, the gate disc is cooled to offset heat generated by a turbo-molecular pump. | 03-13-2014 |
20160069338 | NON-EVAPORABLE GETTER AND NON-EVAPORABLE GETTER PUMP - A non-evaporable getter | 03-10-2016 |