Pumps inventions 03/08

20080069701 - Ion pump having emission containment: An ion pump having emissions containment. The ion pump includes an anode constructed from a plurality of tubes and a cathode constructed from plates positioned on opposite sides of the anode and positioned apart from the anode. The anode and cathode are positioned within a gastight housing having a gas... Agent: Pauly, Devries Smith & Deffner, L.L.C.

20080069702 - Purge gas unit and purge gas supply integrated unit: To provide a purge gas unit and a purge gas supply integrated unit having a smaller foot space, the purge gas unit comprises an input block for input of purge gas into the purge gas unit, the input block including a purge passage formed through the input block to provide... Agent: Oliff & Berridge, PLC

20080069703 - Air compressor having a pneumatic controller for controlling output air pressure: An air compressor utilizing an electronic control system. A pneumatically controlled regulator is provided for controlling output pressure for an air compressor. Digital gauges are provided on the air compressor to replace conventional mechanical gauges. A variable speed motor is used, which in turn varies the speed of the pump.... Agent: Leydig, Voit & Mayer, Ltd. (seattle Office)

20080069704 - Pumping system: A pumping system (100*) having a pump (10*), such as a variable-displacement vane pump (10*) or a gear pump. The pump (10*) in turn has hydraulic pressure-control dissipating devices (29, 30) for imparting to the oil in a first control chamber (22) a pressure (p2) lower than the pressure of... Agent: Pietragallo Gordon Alfano Bosick & Raspanti LLP

20080069705 - Heat exchange device and fuel supply device: A heat exchange device is provided with a partition wall and a heat radiation member. The partition wall separates a first space from a second space. The partition wall is made from a resin. The partition wall includes a through hole extending from the first space to the second space.... Agent: Dennison, Schultz & Macdonald

20080069706 - Centrifugal pump device for a heat-dissipating system: A centrifugal pump device includes a motor unit and a pump unit. The motor unit includes two elongated stator units, and a rotor disposed rotatably on a motor housing unit between the stator units. Each of the stator units extends in a direction perpendicular to and spaced apart from a... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20080069708 - Air compressor utilizing a variable speed motor and an electronic control system: An air compressor utilizing an electronic control system. A pneumatically controlled regulator is provided for controlling output pressure for an air compressor. Digital gauges are provided on the air compressor to replace conventional mechanical gauges. A variable speed motor is used, which in turn varies the speed of the pump.... Agent: Leydig, Voit & Mayer, Ltd. (seattle Office)

20080069707 - Positive displacement pump apparatus and method: An improved positive displacement rotary pump apparatus and method is provided including a front cover, a rotor body forming a chamber with the front cover, a gear case supporting a pair of hollow drive shafts, and a pair of rotors disposed in the chambers and each detachably mounted to one... Agent: Baker & Hostetler LLP

20080069709 - Pump piston and/or elements sealing the pump piston, in particular a sealing ring of elastomeric material, and a device and method for coating an object of elastomeric material: A pump piston and/or elements sealing the pump piston, in particular a sealing ring of elastomeric material with an additionally applied coating are/is proposed. To improve the durability characteristics, the pump piston and/or the elements sealing the pump piston have a coating which is formed at least predominantly of halogen-,... Agent: Kenyon & Kenyon LLP

20080069710 - Electric motor and fuel pump having the same: There are provided a positive-electrode brush and a negative-electrode brush, which contact with a commutator to conduct electricity, a positive-electrode spring, which biases the positive-electrode brush against the commutator, a negative-electrode spring, which biases the negative-electrode brush against the commutator, and a partition member defining a fuel passage hole, through... Agent: Nixon & Vanderhye, PC

20080069711 - Device for fixing a tube for peristaltic cassette: The invention concerns a peristaltic cassette casing comprising a tube housing forming an arc, characterized in that it comprises tube fixing means arranged along said housing so as to prevent the longitudinal displacement of a tube arranged in said housing.... Agent: Nixon & Vanderhye, PC

20080069712 - High-pressure pump for a fuel injection system of an internal combustion engine: A high-pressure pump having at least one pump element, with a pump piston which is driven in a reciprocating motion and is guided displaceably in a cylinder bore of a pump housing part and which in the cylinder bore defines a pump work chamber that can be filled with fuel... Agent: Ronald E. Greigg Greigg & Greigg P.l.l.c.

20080063534 - Operation control device and method of vacuum pumps: An operation control devices and operation methods thereof so as to eliminates the difficulties in such a case of introduction of vacuum sensors and/or inverter control is disclosed. The disclosure relates to a control of plural sets of vacuum pumps. In order to comply with the subjects to overcome the... Agent: Rossi, Kimms & Mcdowell LLP.

20080063538 - Pressure compensated pump: A pump that includes a piston moveable along a first axis and an eccentric cam positioned about a second axis, wherein the second axis is substantially perpendicular to the first axis. The pump also includes an actuator positioned adjacent to the cam and configured to move the cam along the... Agent: Baker & Hostetler LLP

20080063535 - Pump controller system and method: A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions... Agent: Greenberg Traurig (phx)

20080063536 - Method of controlling the stopping operation of vacuum pump and device therefor: A method for controlling the operation of a vacuum pump when stopping the gas transferring operation thereof, the vacuum pump having a housing in which a pump chamber is formed and a gas transferring body which is rotatably disposed in the pump chamber for transferring gas, the method comprises the... Agent: Morgan & Finnegan, L.L.P.

20080063537 - Speed-related control mechanism for a pump and control method: A pump system includes a fixed or variable capacity pump and a speed-related control mechanism to alter the capacity of a variable capacity pump or to alter the relief pressure of a fixed capacity pump in response to changes in the operating speed of the pump. A pressure generator comprising... Agent: Magna International, Inc.

20080063539 - Method to sense temperature in an implantable pump: An implantable drug infusion pump for delivering drug therapy is made more reliable and its performance improved by monitoring drug pump temperature. Monitoring pump temperature can also provide for temperature-related drug therapy modification. A pump temperature sensor is read by the infusion pump's microprocessor. Pump temperature data is stored in... Agent: Banner & Witcoff, Ltd And Attorneys For Client Number 011738

20080063540 - Displacement control structure for a variable displacement compressor: A variable displacement compressor includes a housing assembly. A displacement control structure for the variable displacement compressor includes a passage forming member, a flat partition and a displacement control valve. The passage forming member is connected to an exterior surface of the housing assembly for forming a refrigerant passage for... Agent: Morgan & Finnegan, L.L.P.

20080063541 - Pumping arrangement: A differentially pumped system comprises a plurality of pressure chambers; and a pumping arrangement (100) attached thereto for evacuating the chambers, the pumping arrangement comprising first and second compound pumps (102, 104) each comprising at least a first inlet (120); (124), a second inlet (122); (126), a first pumping section... Agent: The Boc Group, Inc.

20080063542 - Fan for generating air flow: A fan for generating an air flow by rotating an impeller with a motor is provided. A cylindrical outer side surface of a rotor of the motor is press-fitted to an inner side surface of the impeller cup which is substantially cylindrical. An outer side surface of the impeller cup... Agent: Nidec Corporation C/o Keating & Bennett, LLP

20080063543 - Micro-pump: A micro-pump having a first layer, a second layer and an intermediate flexible layer is disclosed. The first layer and second layer may be of moldable plastics. The intermediate layer may be a substantially flat PDMS membrane layer having an inlet hole and an outlet hole. The first layer and... Agent: Stout, Uxa, Buyan & Mullins LLP

20080063544 - Discharge pressure actuated pump: A pump has a pump barrel formed from a larger diameter section and a smaller diameter section. Each section has a biased piston moveable within the section and the pistons are connected together to form a variable volume chamber between the pistons. As the connected pistons move toward the larger... Agent: Sean W. Goodwin

20080063545 - Electric fuel pump and method for manufacturing the same: A fuel pump includes a case member defining a fuel passage, an inlet, and an outlet. A pump portion is provided in the fuel passage for pumping fuel from the inlet to the outlet. A motor portion is provided in the case member for driving the pump portion. A positive... Agent: Nixon & Vanderhye, PC

20080063548 - Fan motor attaching structure: A fan case and a fan unit realize a fan motor attaching structure in which a fan motor is fixed without a tightening part while the number of functional parts is decreased. The fan case is formed in a box shape having an opening formed by a bottom face, side... Agent: Mcginn Intellectual Property Law Group, PLLC

20080063546 - Electric fuel pump: A fuel pump includes a case member, which defines a fuel passage and accommodating a pump portion for pumping fuel. A motor portion is provided in the case member, and including a commutator for rectifying electricity supplied to an armature. Positive and negative electrode terminals conduct electricity to the motor... Agent: Nixon & Vanderhye, PC

20080063547 - Integral filter and float for an electromagnetic pump: A filtration and float apparatus and method are disclosed, wherein an integrated float frame and filter is provided, a buoyancy of the float frame and filter causing a sealing of the filtration and float apparatus with a pump.... Agent: General Motors Corporation Legal Staff

20080063549 - Linear compressor: The present invention refers to a linear compressor comprising a piston (9) arranged slidably inside a cylinder (15); in said cylinder (15) the 15 piston (9) defines a first low-pressure chamber (21) and a second high-pressure chamber (22), said piston being further provided with communication means (23) between said first... Agent: Wenderoth, Lind & Ponack, L.L.P.

20080063550 - Piston type compressor: A piston type compressor comprises a cylinder block having a plurality of cylinder bores, a plurality of pistons disposed in the respective cylinder bores for defining compression chambers in the respective cylinder bores, a housing for defining a suction-pressure region and a discharge-pressure region therein, a valve-port assembly provided between... Agent: Morgan & Finnegan, L.L.P.

20080063551 - Head discharging compressor system: An orifice has a minimum cross sectional area smaller than the inlet valve clearance. The orifice allows air to enter the compression cylinder during intake strokes of the piston and allows air to exit the compression cylinder during piston compression strokes. The amount of air passing through the orifice is... Agent: Edward W. Goebel, Jr. Macdonald, Illig, Jones & Britton LLP

20080056910 - Anti-bogdown control system for turbine/compressor systems: An anti-bogdown control system monitors and regulates operation of a turbine and a compressor to prevent underspeed trip of the turbine while avoiding surge of the compressor. A turbine speed controller receives a turbine speed signal and a turbine temperature signal, generates a surge margin setpoint, and regulates overfiring of... Agent: Conocophilips Company - I.p. Legal

20080056911 - Water pump for bodies of water containing suspended particles: A water pump for bodies of water such as ponds, aquariums, or fountains containing suspended particles has a housing with a pump housing part provided with an intake opening and an exit opening, in which housing part an impeller with a shaft is rotatably supported, and a motor housing part... Agent: Gudrun E. Huckett Draudt

20080056912 - Pump system and method using planetary gear assembly: In one embodiment, a pump system includes a motor-to-pump transmission having a planetary gear assembly and a clutch. In another embodiment, a pump system includes a transmission having a housing with a motor mount and a pump mount, a central gear disposed in the housing, a plurality of planet gears... Agent: Thompson Coburn, LLP

20080056913 - Capacity varying type rotary compressor: A capacity varying type rotary compressor comprises a cylinder mounted in a casing (100) having a discharge pressure state, a vane pressure chamber (C) provided at a rear side of a vane (440) that divides an inner space of the cylinder into a suction chamber and a compression chamber with... Agent: Ked & Associates, LLP

20080056914 - High-pressure fuel supply pump: A high-pressure fuel supply pump having a fuel relief path for connecting a high-pressure fuel path downstream of a discharge valve for discharging fuel pressurized in a pressurizing chamber to a low-pressure fuel path upstream of an inlet valve or the pressurizing chamber, a check valve being provided in the... Agent: Crowell & Moring LLP Intellectual Property Group

20080056915 - Compact vacuum pump: A vacuum pump capable of pumping solid, liquid and gas, or any combination thereof, including a drive (40) and a manually disengageable pumping system connected thereto. The pumping system is composed of a two- or three-chambered canister (1, 18, 21) within which solids, liquids, and gases can be separated from... Agent: Nath & Associates

20080056916 - Pump device: The present invention relates to a pump device with a first diaphragm pump head having two or an integral multiple of two fluid delivery chambers and diaphragms associated therewith, which are hydraulically coupled to a second diaphragm pump head. The second diaphragm pump head has two additional fluid delivery chambers... Agent: Baker & Hostetler LLP

20080056917 - Fuel feed unit: Disclosed is a fuel conveying unit comprising an electric motor and a return ring (8) that is made of plastic-bonded ferrite as a single piece along with magnetic shells (10). The magnetic shells (10) induce a magnetic flux that is closed by the return ring (8). The electric motor requires... Agent: Hanley, Flight & Zimmerman, LLC

20080056918 - Tube pump and liquid ejection apparatus: A tube pump including a housing, a tube, a rotor, and a pressing member is disclosed. The tube has a section that is arranged in the housing in such a manner as to annularly extend along an inner circumferential surface. The rotor has a cam surface. The pressing member has... Agent: Sughrue Mion, PLLC

20080056919 - Tube pump and liquid ejecting apparatus: A tube pump including a housing with a cylindrical inner circumferential surface, wherein a portion of a flexible tube is wound with an upstream portion and a downstream portion of the tube overlapping at a overlapping section, and a pressing member capable of pressing the tube which is movably housed... Agent: Workman Nydegger

20080056920 - Actuators and fluid delivery systems using such actuators: An actuator includes a non-magnetic, electroactive material that is suitable to impart force upon application of an electric current, a power supply to provide an electric current to the electroactive material and a controller in operative connection with the power supply to control application of electric current to the electroactive... Agent: Gregory L Bradley Medrad Inc

20080056921 - Well fluid pumping arrangement: A liquid well pumping arrangement, especially for oil wells, comprising a pair of adjacent downhole reciprocating pumps each having a barrel, a piston rod connected to a piston slidable within the barrel, and valves adapted to cause liquid to flow from a lower inlet of the barrel to an upper... Agent: Raymond F. Pasquan

20080056922 - Universal air pump: A universal air pump includes a pump; a head mounted to the pump and having a central hole and an air inlet at a side wall thereof; a cylindrical block pivotably fitted in the central hole of the head and having a central chamber, an annular channel on an outer... Agent: Rabin & Berdo, PC