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Pumps April category listing, related patent applications 04/09

Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application.
04/30/2009 > patent applications in patent subcategories.

20090110562 - Variable frequency control module for an ac compressor in an air conditioning system: A variable frequency control module includes a temperature detecting unit outputting a detecting signal corresponding to ambient temperature detected thereby, an operating unit operable so as to output an input signal corresponding to a target temperature, and a processing unit receiving the detecting signal and the input signal from the... Agent: Townsend And Townsend And Crew, LLP

20090110564 - Hydrostatic bearing arrangement for pump swashplate having secondary angle: A hydraulic axial piston pump is designed with a secondary swashplate angle for providing improved performance and life. The secondary swashplate angle produces a sideload on the swashplate that is reacted by the pump's housing. A hydrostatically balanced thrust bearing is used to counteract the sideload produced by the secondary... Agent: Don W. Bulson (park) Renner, Otto, Boisselle & Sklar, LLP

20090110563 - Power recovery system: A power recovery system is used for reducing the total energy consumption in a process such as an industrial treating process or a fluid refining process including the delivery of a fluid under a high pressure. The power recovery system includes a high-pressure pump for pressuring raw water, a reverse... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090110565 - Sanitary pump assembly: A progressing cavity pump system including a feeder assembly including a hopper for receiving material to be pumped therein. The feeder assembly includes an auger housing receiving an auger therein. The auger housing has an underlying portion positioned generally below the hopper and having a radial opening open to the... Agent: Thompson Hine L.L.P. Intellectual Property Group

20090110566 - Portable air compressor: The portable air compressor (1) comprises an air pumping element (2), an electric motor for driving the pumping element (2), at least one tank (3) for storing the compressed air coming out of the pumping element (2), and a box-shaped container (5) for containing the pumping element (2), the electric... Agent: Pearne & Gordon LLP

20090110567 - Air compressor: A compact lightweight air compressor is provided with a DC motor to provide versatile use in the field where no AC power source is available. The air compressor includes a intercooler storage vessel for cooling and storing the compressed air as well as a cooling fan arrangement that allows cooling... Agent: Harness, Dickey & Pierce, P.L.C

20090110568 - Axial piston compressor: Axial piston compressor, especially for motor vehicle air-conditioning systems, having a tilt plate (2), especially a ring-shaped tilt plate, which is variable in terms of its inclination with respect to a drive shaft (1) and which is driven in rotation by the drive shaft (1) and is in articulated connection... Agent: Andrus, Sceales, Starke & Sawall, LLP

20090110569 - Variable capacity swash plate type compressor: The present invention relates to a variable capacity swash plate type compressor, which has an elastic member mounted on a driving shaft located between a rotor and a swash plate for pushing a swash plate in a direction that an inclination angle is decreased to always contact and support a... Agent: Fulbright & Jaworski, LLP

20090110570 - Scroll compressor: The present invention relates to a scroll compressor. The scroll compressor is configured to have bypass holes communicated with compression chambers so as to bypass a part of a compressed refrigerant and thus to modulate a capacity of the compressor, a middle pressure chamber and a valve. Accordingly, it is... Agent: Mckenna Long & Aldridge LLP

20090110571 - Hydraulic pump for brake system: Disclosed is a hydraulic pump for a brake system including a piston installed in a bore formed in the modulator block having an inlet and an outlet such that the piston can reciprocate and having a channel communicating with the inlet, a plug installed in the bore for dividing the... Agent: Ladas & Parry

20090110572 - Anisotropic bearing supports for turbochargers: An exemplary anisotropic member (625, 1200, 1600, 1700, 1800, 1950) supports a bearing in a bore and can reduce non-synchronous vibration (NSV) of the bearing in the bore. An exemplary anisotropic member includes an annular body configured to receive a bearing and to space the bearing a distance from a... Agent: Honeywell Turbo Technologies

20090110573 - Apparatus and method for retaining and isolating modular fan and motor sub-assemblies in air moving systems: An air moving system includes an outer housing including a plurality of housing portions, with a first of the housing portions being hingably securable to a second housing portion at a first pivot axis. The air moving system further includes a fan and motor sub-assembly that is operably disposed within... Agent: Haugen Law Firm Pllp

20090110574 - Centrifugal pump systems: A pumping system for pumping a mixture, e.g. a drilling fluid mixture, containing liquid and solids, the pumping system including a container, centrifugal pump apparatus for pumping the mixture, the pump apparatus including a pump shaft, a drive motor, a shaft packing structure, and bearing apparatus around the pump shaft,... Agent: Guy Mcclung

20090110575 - High-pressure fuel supply pump and the manufacturing method: An object of this invention is to provide such a welded structure of and welding method for two metallic parts fitted together at a tubular section in a high-pressure fuel supply pump, that enables rapid joining of both metallic parts by staking (press-fitting included), screw fastening, and/or laser welding, offers... Agent: Crowell & Moring LLP Intellectual Property Group

20090110576 - System of bellows and co-acting part: The invention relates to a system of bellows and co-acting part, comprising a co-acting part which comprises a stiff outer wall, and a bellows co-acting therewith which comprises a flexible wall of a predetermined shape and thickness, wherein the flexible wall of the bellows is movable along the stiff outer... Agent: Bozicevic, Field & Francis LLP

04/23/2009 > patent applications in patent subcategories.

20090104043 - Concrete pump primer: An improved composition for and method of priming a concrete pump line is provided. The flowable composition comprises a solid particulate mixture and water, the particulate mixture being comprised of solvatable polymeric material preferably selected from a group consisting of polyacrylamide, polyacrylate and mixtures thereof; an organic complexing agent preferably... Agent: Gardner Groff Greenwald & Villanueva. PC

20090104045 - High pressure pump having plunger: A high pressure pump draws fluid from a fluid inlet into a compression chamber through an inlet chamber. The high pressure pump has a fluid chamber that communicates with the fluid inlet via the inlet chamber. The high pressure pump includes a plunger and a cylinder. The plunger draws fluid... Agent: Nixon & Vanderhye, PC

20090104044 - 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)

20090104046 - Rotary pressure transfer devices: A rotary pressure exchange device for transferring the pressure of a high pressure stream of first fluid to a low pressure stream of second fluid having an improved substantially cylindrical rotor (41, 51, 61). The rotor is formed to provide a plurality of longitudinal passageways comprising the lumens (49) of... Agent: Fitch Even Tabin And Flannery

20090104047 - Pump having multiple minimum flow mechanical stops: A pump is disclosed. The pump may have a housing, and at least one pumping mechanism disposed within the housing. The at least one pumping mechanism may have a variable displacement. The pump may also have a plurality of available mechanical stops. Each of the plurality of available mechanical stops... Agent: Caterpillar/finnegan, Henderson, L.L.P.

20090104048 - Axial piston compressor: Axial piston compressor, especially a compressor for the air-conditioning system of a motor vehicle, having a housing and, for drawing in and compressing a coolant, a compressor unit arranged in the housing and driven by means of a drive shaft, the compressor unit comprising pistons, which move axially back and... Agent: Andrus, Sceales, Starke & Sawall, LLP

20090104049 - Sliding vane pump: The present disclosure provides a fluid pump having a pump motor a pump drive shaft and a vane pump assembly. The vane pump assembly includes pump housing with a fluid inlet port in a distal portion of the housing and a fluid outlet port in a proximate portion. A first... Agent: Luedeka, Neely & Graham, P.C.

20090104050 - Compressor: A suction muffler receives low-temperature refrigerant gas discharged into a hermetic container from a suction pipe by a gas catcher, and feeds the gas to a compressor. The lower end of an opening of the gas catcher is located at a position lower than the lower end of an orifice... Agent: Ratnerprestia

20090104051 - Guide device for blowers: A blower includes an adjusting device connected to the air outlet of the case unit and the adjusting device includes a fixed plate, a rotatable plate which is rotatably connected to the fixed plate. The fixed plate includes two first apertures and the rotatable plate includes two second apertures. The... Agent: Bacon & Thomas, PLLC

20090104052 - Pump improvements: A pump that has a flangeless valve plate, meaning that the valve plate has no flange through which bolts that secure the head to the pump extend. The pump has eccentrics and pistons that all have holes in them so that the pistons at opposite ends of the pump can... Agent: Husch Blackwell Sanders, LLP Husch Blackwell Sanders LLP Welsh & Katz

20090104053 - Fan unit and methods of forming same: The described embodiments relate to fans units. One exemplary fan unit includes a housing supporting a motor. The fan unit also includes an impeller coupled to the motor and configured to be rotated by the motor. The impeller comprises at least a first structure configured to move air past the... Agent: Hewlett Packard Company

20090104055 - Electric compressor manufacturing method and electric compressor: The present invention aims to achieve a simplest possible transfer of components in an assembling process while almost perfectly preventing dirt, oil and the like from producing an adverse effect on a motor control circuit. A compressor main body assembly A is assembled by fitting, to a rear housing member... Agent: Foley And Lardner LLP Suite 500

20090104054 - Liquid flowing device: A liquid flowing device includes: a plate-like vibration body; and a driving section that vibrates the vibration body in a thickness direction, wherein at least a portion of an end section of the vibration body in an in-plane direction continuously becomes thinner toward an end of the vibration body.... Agent: Oliff & Berridge, PLC

20090104056 - Liquid cartridge and liquid pump: A liquid cartridge includes: a container section that stores liquid; a plate-like vibration body that is submerged in the liquid and flows the liquid; and a driver section that drives the vibration body in a thickness direction, wherein the vibration body has an end section, and at least a portion... Agent: Oliff & Berridge, PLC

20090104057 - Pump having magnetic coupling mechanism: A pump having a magnetic coupling mechanism for driving a drive member of the pump includes a reduction mechanism provided between the drive member of the pump and the magnetic coupling mechanism driven by an external driving source, and in an enclosed housing there are arranged the driving member of... Agent: Mcdermott Will & Emery LLP

20090104058 - Sealed pump: A liquid pump has an annular stator having wire windings that extend around a generally tubular central opening. An inner housing made of a non-ferrous material has an inner opening, an input end, and an output end such that liquid can enter the input end, pass through the inner opening... Agent: Robert L. Marsh

20090104059 - Air pump having selectable low pressure and high pressure mode: An air pump, including: two cylinders, a big one and a small one, is fitted to each other by a contractible way. A head connects with the out end of the small cylinder. A pressure relief valve connects with the out end of the big cylinder. A first piston is... Agent: Browdy And Neimark, P.l.l.c. 624 Ninth Street, Nw

04/16/2009 > patent applications in patent subcategories.

20090097984 - Operation control device for vacuum pump and method for stopping operation thereof: To provide an operation control device for a vacuum pump and a method for stopping the operation of the vacuum pump that make it possible to effectively remove products, resulting from solidification and liquefaction of gas in a casing and possibly hindering the rotation of a pump rotor, so that... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20090097985 - Control system for reciprocating device: A control system for a reciprocating device which includes a switching valve for directing fluid supply under pressure to one of two drive lines in an alternating manner, means for alternating the switching valve, and an exhaust circuit including and exhaust outlet, a first flow restrictor disposed between one drive... Agent: Edward Yoo C/o Bennett Jones

20090097987 - Driving control apparatus and method for linear compressor: An apparatus for controlling an operation of a reciprocating compressor, includes: a control unit for detecting a current pushed amount of a piston when a TDC is detected as an inflection point of a phase difference between stroke and current, comparing the current pushed amount with a pushed amount reference... Agent: Birch Stewart Kolasch & Birch

20090097986 - Oil pressure unit and speed control method of motor in oil pressure unit: An oil pressure unit includes an inverter arranged to supply electric power to a motor; a load sensor arranged to detect a load of the oil pressure pump; a rotation sensor arranged to detect a rotation speed of the motor; a current command value calculation part configured to calculate a... Agent: GlobalIPCounselors, LLP

20090097988 - Airflow control for variable speed blowers: An apparatus for controlling an air distribution system by controlling the speed of a motor associated with a blower to maintain a rate of air flow in the system at substantially a target air flow rate. The apparatus comprises means for controlling a supplied frequency to the motor; means for... Agent: Fish & Richardson P.C.

20090097989 - Portable hybrid gas compressor: A portable, hybrid gas compressor. The hybrid characteristics of the present invention stem from the compressor's ability to offer a user: in one embodiment, multiple sources of power; in another embodiment, multiple varieties of compressed gas for distribution; and in yet another embodiment, the option to recharge the gas supply... Agent: Blankenship Law, PLLC

20090097990 - Swash plate type compressor: A swash plate type compressor has a cylinder block, a drive shaft, a piston, a pair of first and second shoes and a swash plate. The swash plate has a first surface on the far side of the swash plate from the cylinder bore in slide contact with the first... Agent: Morgan & Finnegan, L.L.P.

20090097991 - Fuel pump: A fuel pump for use in an internal combustion engine, the fuel pump comprising a pumping plunger for pressurising fuel within a pump chamber during a plunger pumping stroke, a rider member co-operable with a drive, and an interface member, for example a foot of the plunger or an intermediate... Agent: Delphi Technologies, Inc.

20090097992 - External gear hydraulic pump with acoustical insulation: The invention concerns an external gear hydraulic pump including a pump body housing rotating pinions that mutually engage. Located on opposite sides of the body are a cover and a support, forming an outlet manifold for high pressure fluid. Acoustic insulation elements damp the vibrations produced by the pinions. The... Agent: Leydig Voit & Mayer, Ltd

20090097993 - Hermetic compressor: A hermetic compressor capable of insulating connectors (43), to which a plurality of lead lines (42) connected to a terminal block (41) and a plurality of stator coils (31a) used in a stator (31) are connected, without using a separate insulator, and capable of preventing defective insulation of the connectors... Agent: Ohlandt, Greeley, Ruggiero & Perle, LLP

20090097994 - Cranked rod pump apparatus and method: An improved apparatus and method are provided, for pumping fluids, such as water and/or hydrocarbons, from a subterranean formation or reservoir, through use of a cranked rod pumping (CRP) apparatus for imparting reciprocating substantially vertical motion to a rod of a sucker-rod pump having a pump stroke. The CRP apparatus... Agent: Reinhart Boerner Van Deuren P.C.

20090097995 - Syringe pump: The syringe pump includes a cylinder which includes a receiving space, a piston which is mounted in the cylinder to pump liquid or powder in and out of the cylinder, and a piezoelectric linear actuator which moves the piston in a reciprocating manner. In addition, the piezoelectric linear actuator comprises... Agent: Seed Intellectual Property Law Group PLLC

20090097996 - Magnetic drive pump: A magnetic drive pump includes a pump chamber, a partition wall separating the pump chamber from an exterior portion, an impeller disposed in the pump chamber and rotating around a rotation axis, an inductor unitarily rotating with the impeller around the rotation axis, a magnet unit disposed at a position... Agent: Reed Smith LLP

20090097997 - Fuel pump: A housing has a compression chamber and a first passage, through which the compression chamber communicates with an accumulation chamber. A discharge valve is provided in the first passage and configured to open to supply fuel from the compression chamber to the accumulation chamber in response to increase in pressure... Agent: Nixon & Vanderhye, PC

20090097998 - Fixed displacement pump: A fixed displacement pump. The fixed displacement pump may include a chamber, a piston positioned within the chamber, and a collar positioned within the chamber to as to limit movement of the piston within the chamber.... Agent: Sutherland Asbill & Brennan LLP

20090097999 - Suction structure in double-headed piston type compressor: A suction structure is provided for allowing refrigerant into first and second compression chambers from a suction pressure region through first and second rotary valves and first and second communication passages in a double-headed piston type compressor. The first and the second rotary valves respectively have first and second introduction... Agent: Morgan & Finnegan, L.L.P.

04/09/2009 > patent applications in patent subcategories.

20090092501 - Compressor protection system and method: A system and method for protecting a variable speed compressor may include an inverter drive that modulates a frequency of electric power delivered to the compressor to modulate a speed of the compressor. The inverter drive may be cooled by refrigerant and include a temperature sensor that outputs an inverter... Agent: Harness, Dickey & Pierce, P.L.C

20090092502 - Compressor having a power factor correction system and method: A power factor correction (PFC) device may be connected with a power source and a compressor. A control module may receive a measured operating parameter of the compressor, compare the measured operating parameter with a predetermined threshold, and control a switch to selectively bypass the PFC device based on the... Agent: Harness, Dickey & Pierce, P.L.C

20090092503 - Value structure: A valve structure includes a valve opening diaphragm and a valve diaphragm. The valve opening diaphragm provides a central valve opening with a plurality of wave shaped projections at the circumference of the valve opening. The valve diaphragm stacks on the valve opening diaphragm and providing at least a pair... Agent: Apex Juris, PLLC

20090092504 - Hermetic compressor: A hermetic compressor includes a hermetic container, a compression element accommodated in the hermetic container, and a motor element driving the compression element. The hermetic container has an inner space therein arranged to store lubrication oil. The compression element includes a shaft unit rotating about a rotation axis. The shaft... Agent: Wenderoth, Lind & Ponack L.L.P.

20090092505 - Dual diaphragm pump assembly for a sanitation system: A pump assembly includes a housing defining a working chamber, a water pump chamber and a waste pump chamber. A first diaphragm separates the water pump chamber and the working chamber. A second diaphragm separates the waste pump chamber and the working chamber. A common driver member interconnects the first... Agent: Harness, Dickey & Pierce, P.L.C

20090092507 - Fluid pump systems: A fluid pump system has a housing having a housing cover removably connected to a housing base. A plurality of fluid pump assemblies are inside of the housing. Each fluid pump assembly has an electric motor operatively connected to a fluid pump. Each fluid pump has a fluid inlet extending... Agent: Michael S. Leonard Everest Intellectual Property Law Group

20090092506 - Rotor attachment for compressor: A compressor having drive assembly including a crankshaft and a motor having a stator and a rotor. The rotor is received on a crankshaft and secured to the crankshaft via a counterweight. In one exemplary embodiment, the counterweight is shrink-fit or press-fit in position on the crankshaft and the rotor... Agent: Baker & Daniels LLP 111 E. Wayne Street

20090092508 - Electric thrust piston pump device: A thrust piston pump apparatus PM1 can be driven by an electric motor 110 and is provided with a pump housing 120, a reciprocating piston 130 assembled into the pump housing 120, and a motion conversion mechanism 40 provided between the reciprocating piston 130 and a rotor 113 of the... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090092509 - Apparatus and method for magnetic-based manipulation of microscopic particles: Apparatus and method for manipulating particles on a micro- or nano-scale. An embodiment of the present invention includes a magnetic micro-manipulation technique that utilizes micro-coils and soft magnetic microscopic wires for localized manipulation of particles. Another embodiment of the present invention uses magneto-static interaction between two magnetic microscopic wires to... Agent: Greer, Burns & Crain

20090092510 - Quintuplex mud pump: A quintuplex mud pump has a crankshaft supported in the pump by external main bearings. The crankshaft has five eccentric sheaves, two internal main bearing sheaves, and two bull gears. Each of the main bearing sheaves supports the crankshaft by a main bearing. One main bearing sheave is disposed between... Agent: Wong, Cabello, Lutsch, Rutherford & Brucculeri, L.L.P.

20090092511 - Heart-shaped cam constant flow pump: A constant flow pump and method of providing a constant fluid flow using such a pump, and more particularly a pump and method that maintain a constant flow by using a heart-shaped cam to directly reciprocate the pistons of the pump at a constant velocity are described. The pump operates... Agent: Schlumberger Technology Corporation David Cate

04/02/2009 > patent applications in patent subcategories.

20090087319 - Pump system including a variable frequency drive controller: A pump system generally comprising an electrical connector operable to couple with an electric circuit to receive electricity, an electric motor operable to actuate a pump to pump a fluid, and a variable frequency drive (VFD) controller. The VFD controller is operable to control the rotational speed of the electric... Agent: Hovey Williams LLP

20090087320 - Oil-cooled air compressor: In an oil-cooled air compressor for controlling a temperature of a lubricant by changing a flow rate of a cooling medium supplied to a heat exchanger for the lubricant, for obtaining an energy saving effect by variable control of the flow rate of the cooling medium and preventing securely a... Agent: Antonelli, Terry, Stout & Kraus, LLP

20090087321 - Two-stage compression rotary compressor: A two-stage compression rotary compressor is provided that includes a low-stage compressing section and a high-stage compressing section housed within a cylindrical sealed housing oriented vertically, a low-stage suction pipe that is connected to a suction side of the low-stage compressing section and sucks in a low-pressure refrigerant, a low-stage... Agent: Mcdermott Will & Emery LLP

20090087322 - Electric compressor: The present invention has an object to provide an integrated electric compressor further downsized. An inverter control apparatus comprises: a power board 16 converting a direct current supplied from a high voltage power supply to an alternating current and applying it to a motor; and a control circuit board 15... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20090087323 - Pump: A fluid pump comprising one or more actuators, two end walls, a side wall; a cavity which, in use, contains fluid, the cavity having a substantially cylindrical shape bounded by the end walls and the side walls, at least two apertures through the cavity walls, at least one of which... Agent: John P. De Luca

20090087324 - Fuel pump end cap with isolated shunt wires: An end cap assembly for an in-tank fuel pump is configured to close an open end of a pump housing and includes an end cap body and a companion clip. On the bottom side of the end cap body facing the pump housing is a pair of motor brush wells... Agent: Delphi Technologies, Inc.

20090087325 - Peristaltic pump assembly and regulator therefor: A peristaltic pump assembly includes a pump body and a cassette removably attached thereto, wherein the cassette includes a race configured to provide a compression surface for a tube supported by the cassette. A roller assembly is operatively connected to the pump body, wherein the roller assembly includes a plurality... Agent: Delphi Technologies, Inc.

20090087327 - Peristaltic pump and removable cassette therefor: A removable cassette for a peristaltic pump includes a cassette body and an occluder disposed at least partially in the cassette body and configured to be movable between an occluding position and a non-occluding position. The occluder includes an occluder body and an anti-ejection member integrally formed on the occluder... Agent: Delphi Technologies, Inc.

20090087326 - Peristaltic pump assembly: A peristaltic pump assembly includes a pump body including a mounting pin coupled thereto. A removable cassette is slidably received on the mounting pin and is secured to the pump body via a retaining feature. The mounting pin is also configured to allow the removable cassette to rotate into and/or... Agent: Delphi Technologies, Inc.

20090087328 - Pulse generating device: A pulse generator has a rigid body with a resilient flow conduit passing therethrough. Pressure is periodically selectively applied to the interior of the body which compresses the flow conduit and induces a pressure pulse in the fluid contained therein. The pulse generator may be used as a stand alone... Agent: Trego, Hines & Ladenheim, PLLC

20090087329 - Compressor having improved valve plate: A compressor may include a compressor body defining a compression cylinder, a compressor head coupled to the compressor body, and a valve plate assembly disposed between the compressor head and the compressor body. The valve plate assembly may include a first valve plate formed as a unitary casting and defining... Agent: Harness, Dickey & Pierce, P.L.C

Previous industry: Fluid reaction surfaces (i.e., impellers)
Next industry: Rotary expansible chamber devices


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