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Pumps May archived by USPTO category 05/09

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.
05/28/2009 > patent applications in patent subcategories.

20090136359 - Motor control apparatus for a ventilation system: A method of constant airflow control for a ventilation system is disclosed. The method includes various controls to accomplish a substantially constant airflow rate over a significant change of the static pressure in a ventilation duct. One control is a constant I·RPM control, which is primarily used in a low... Agent: Knobbe Martens Olson & Bear LLP

20090136360 - Method of constant airflow control for a ventilation system: A method of constant airflow control for a ventilation system is disclosed. The method includes various controls to accomplish a substantially constant airflow rate over a significant change of the static pressure in a ventilation duct. One control is a constant I·RPM control, which is primarily used in a low... Agent: Knobbe Martens Olson & Bear LLP

20090136361 - Vacuum turbomolecular pump: A vacuum turbomolecular pump (10) is driven by a brushless direct-current drive motor (16) comprising stator coils and a permanent-magnetically excited motor rotor. When rotating, the motor rotor produces an electromotive force oriented counter to the direction of rotation. A motor controller (22) is connected to the stator coils and... Agent: Fay Sharpe LLP

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... Agent: Steptoe & Johnson LLP

20090136363 - Multi-stage submersible pump: Embodiments of the disclosure provide a booster pump to pressurize fluid for use by a pool cleaner in a pool or spa. The booster pump includes a front housing having an inlet, a plurality of diffuser units positioned in the front housing, and a motor housing detachably coupled to the... Agent: Greenberg Traurig (phx)

20090136364 - Compressor: The present invention relates to a compressor, which includes a main refrigerant supply channel for supplying refrigerant by passing through the inside of a driving shaft and an auxiliary refrigerant supply channel for supplying refrigerant by passing through a suction chamber of front and rear housings and a slot of... Agent: Fulbright & Jaworski, LLP

20090136366 - Compressor: [Disclosure of the Invention] A compressor comprises a compressing mechanism, a discharge chamber, a housing accommodating the compressing mechanism and the discharge chamber, a discharge port communicating with the discharge chamber through a discharge passage and an external refrigerant circuit, a muffler formed by an expanded space disposed on the... Agent: Baker Botts LLP C/o Intellectual Property Department

20090136365 - Refrigerant compressor: The invention relates to a hermetically encapsulated refrigeration compressor comprising a hermetically sealed compressor housing containing a piston-cylinder unit compressing a refrigerating agent. The cylinder is closed by means of a valve plate comprising a pressure borehole and a suction borehole, and a suction channel and a pressure channel are... Agent: Collard & Roe, P.C.

20090136367 - Air compressor: Between a base 1 and the electric motor 3, an adjustment mechanism 5 is provided for adjusting the tension of the drive belt 4 by changing the relative position between the compressor body 2 and the electric motor 3. The adjustment mechanism 5 is provided with an electric-motor base 6... Agent: Townsend And Townsend And Crew, LLP

20090136368 - Center housing and bearing and shaft wheel assembly for turbochargers: An exemplary center housing for a turbocharger includes a compressor end and a turbine end and a through bore that includes a turbine end opening for receiving a bearing cartridge and shaft subassembly. In an assembly, a turbine end shaft portion of the subassembly can have an outer diameter approximately... Agent: Honeywell Turbo Technologies

20090136369 - Hermetic compressor: This hermetic compressor includes a regulation mechanism, which is arranged between a lower washer and an upper end face of a bearing, for regulating a movable distance in a thrust direction of the lower washer so that the movable distance can be shorter than clearance between an inner diameter of... Agent: Pearne & Gordon LLP

20090136370 - Fluid dispenser comprising a bellows: Apparatus (2) for causing fluid flow, which apparatus (2) comprises a bellows (4). The bellows (4) may be made of a metal or a plastics material. The bellows (4) may include sealing means (10) for sealing the fluid in the bellows (4) and/or preventing air entering the bellows (4). The... Agent: Thomas E. Thompkins, Jr. Iandiorio Teska & Coleman

05/21/2009 > patent applications in patent subcategories.

20090129935 - Pump suction pressure limiting speed control and related pump driver and sprinkler system: A building sprinkler system includes a pump that feeds a plurality of sprinkler heads. A driver is operatively connected to the pump for driving the pump. A speed control is responsive to suction pressure at a suction side of the pump. The speed control is configured to reduce driver speed... Agent: Thompson Hine L.L.P. Intellectual Property Group

20090129936 - Electronic device having blower: An electronic device having a first motor which rotates a rotating body (for example, blades) about a rotation axis and a second motor which vibrates a vibrator including the rotating body in the axial direction is provided. A control IC unit has a first circuit which subjects the rotation to... Agent: Mattingly & Malur, P.C.

20090129937 - Downhole pump controller: An apparatus for controlling a downhole pump. The pump has a stator, a rotor and a pump drive. The temperature monitoring apparatus includes at least one temperature sensor positioned downhole in thermal communication with the downhole pump for measuring the downhole temperature of the downhole pump, and a pump controller... Agent: Davis & Bujold, P.l.l.c.

20090129938 - Device mounting apparatus for a fluid control system: A pump control system is provided and includes a tank communicated with a flow pipe via a tank port, wherein the flow pipe communicates a fluid source with a fluid destination. A sensing device disposed in proximity to the tank port is also provided and is configured to measure a... Agent: The Law Offices Of Steven Mchugh, LLC

20090129939 - Apparatus for thermal dissipation and retention of float: In an improved pump assembly having a fluid reservoir into which a stationary post extends, a sensor is supported by the post and a floating member is supported for travel between upper and lower portions of the post. A magnet is supported by the floating member, the sensor responding to... Agent: Marshall, Gerstein & Borun LLP

20090129940 - Differential pressure switch: The invention relates to a field adjustable pressure switch that incorporates a manually adjustable differential to set the pressure level for the trip point for the pressure switch used in conjunction with a submersible sump pump system requiring trip levels corresponding to the desired water level in the sump well... Agent: Mcdonald Hopkins LLC

20090129941 - Method for controlling a pump arrangement, and pump arrangement: A method for controlling a pump arrangement comprising a fluid delivering pump having a pump drive, a bypass line having a bypass valve for routing fluid back from an outlet side of the pump to a reservoir is disclosed. During ramping up the pump drive to a predetermined target rotational... Agent: Hayes Soloway P.C.

20090129942 - System and method for controlling a progressing cavity well pump: A system and method for controlling the speed of a progressing cavity liquid well pump to increase liquid production from a well while avoiding operation of the well in a pumped-off state. A controller controls a variable speed drive to drive a progressing cavity liquid well pump at a set... Agent: Andrews & Kurth, L.L.P.

20090129943 - Method for driving a bidirectional motor to rotate a fluid circulation pump: A method for starting a motor (14) with a bidirectional rotation direction, to rotate a fluid circulation centrifugal pump (10) having a predetermined optimum hydraulic efficiency depending on the starting rotation direction thereof. The method provides an initial motor (14) starting in either rotation direction, with subsequent pump (10) rotation... Agent: Akerman Senterfitt

20090129945 - Osmotic pump: An osmotic pump comprises a first chamber (8) comprising an osmotically active substance (18), a second chamber (15) arranged to be filled with a solvent (17), and a semi-permeable barrier (14) separating the first chamber (8) from the second chamber (15). The semi-permeable barrier (14) is impermeable to the osmotic... Agent: Helge Adleff

20090129944 - Peristaltic pump: A peristaltic pump is presented comprising a housing and a rotor assembly supported by the housing. An occlusion bed is slideably mounted in the housing. A door is pivotable about a shaft, which is supported by the housing. A pinion gear is coupled to the shaft and engages a rack... Agent: Wood, Herron & Evans, LLP

20090129946 - Pumping unit for delivery of liquid medium from a vessel: A pumping unit for delivering a liquid medium from a low pressure vessel such that the delivered medium has sufficiently high pressure, by providing the liquid medium in the form of separated pulses.... Agent: Heslin Rothenberg Farley & Mesiti PC

20090129947 - 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 connected to—especially in... Agent: Volpe And Koenig, P.C.

20090129949 - Axial piston machine with hydrostatic support of the holding -down device: An axial piston machine comprises a housing (1), which receives an eccentric disk (3) as well as a rotatably mounted cylinder drum (6) with cylinders (26, 28) and pistons (29), which are reciprocable in the cylinders (26, 28) and of which the ends projecting from the cylinders (26, 28) are... Agent: Scully Scott Murphy & Presser, PC

20090129948 - Suction structure in fixed displacement piston type compressor: A suction structure is provided for allowing refrigerant into a suction pressure region in a fixed displacement piston type compressor. The compressor includes a rotary valve. The suction structure includes a shifting device which shifts between a connecting state and a disconnecting state. The shifting device includes a valve body,... Agent: Knoble Yoshida & Dunleavy LLC

20090129950 - Oil pump resonator: The invention provides an oil pump resonator in which various vibrations caused by pulsations that change in response to changes in oil pressure on a discharge port side can be attenuated by a resonator that comprises only one chamber, whereby the volume occupied by the resonator can be minimized. An... Agent: Mcginn Intellectual Property Law Group, PLLC

20090129951 - Electrically powered hydraulic actuating system: An electrically powered hydraulic actuating system is disclosed. The system includes a pump that has a plurality of electro-magnetically actuated pumping chambers. The plurality of electro-magnetically actuated pumping chambers have a common inlet situated to supply the plurality of electro-magnetically actuated pumping chambers with low-pressure fluid. The plurality of electro-magnetically... Agent: Caterpillar/finnegan, Henderson, L.L.P.

20090129952 - Microfluidic device: A microfluidic device is described. The microfluidic device comprises at least one transport channel and at least one working chamber, wherein the at least one transport channel and the at least one working chamber are separated from each other by a common deformable wall. The at least one transport channel... Agent: Mcdonnell Boehnen Hulbert & Berghoff LLP

20090129953 - Pump, power plant, a windmill, and a method of producing electrical power from wind energy: Power plant (10) for the generation of electrical power using wind power or wind energy, comprising a plurality of windmills (12, 14, 16) each comprising a mill tower, a rotor (18, 20, 22) with a shaft (32) being rotatably journalled in said mill tower, a fluid pressure generator (34) mounted... Agent: Klein, O'neill & Singh, LLP

20090129954 - Electric compressor: An electric compressor incorporating an electric motor for driving a compression mechanism and containing, in a compressor housing, a joint between an external terminal for supplying power to the electric motor and an end of a wire from a stator of the electric motor. The electric compressor has a vibration... Agent: Baker Botts LLP C/o Intellectual Property Department

20090129955 - Linear compressor and drive unit therefor: A drive unit for a linear compressor having a frame and a body configured for reciprocating movement connected to the frame by at least one diaphragm spring and means for guiding the body to allow linear reciprocating movement with respect to the frame, the drive unit including a coil spring... Agent: Bsh Home Appliances Corporation Intellectual Property Department

20090129956 - Compressor system and method of lubricating the compressor system: A compressor system comprising a compressor (e.g., rotary screw compressor) a gearbox and a lubrication system for providing lubrication to the compressor and the gearbox is disclosed. The compressor and the gearbox are provided in operational association with one another within a compressor housing. The compressor system further comprises a... Agent: Whyte Hirschboeck Dudek S C Intellectual Property Department

20090129957 - Drywall mud pump with improved connection between the piston and the rod: Drywall mud pump for pumping drywall joint compound, for instance, from a bucket into a drywall tool. The pump includes a cylinder, a piston, a rod, and a means, or a connection structure between the piston and the rod, for allowing the end of the rod to move laterally relative... Agent: Bryan Cave LLP

20090129958 - Cyclic condensate pump having a three-way valve: A condensate pump includes a condensate reservoir, a liquid level float sensor operable to sense a liquid level within the condensate reservoir, and a pressure/vent valve including a pressure source, a pressure vent, and a primary piston slidably supported in a primary cylinder and sliding in the primary cylinder responsive... Agent: Mcnees Wallace & Nurick LLC

05/14/2009 > patent applications in patent subcategories.

20090123293 - Method and apparatus of driving multiple shafts in a wet/dry vacuum and liquid pump: The present disclosure provides a method and system to supply pumping capabilities to a wet and dry vacuum cleaner. A single motor can operate a vacuum unit and the pump distinct from the vacuum unit. A port in the vacuum flow path can act as a vacuum tap to prime... Agent: Locke Lord Bissell & Liddell LLP Attn:IPDocketing

20090123294 - Fuel cell with temperature sensor device: The present invention relates to a fuel cell with temperature sensor device, characterized in which the membrane electrode assembly of the fuel cell is installed on a circuit board where the circuit board comprises a temperature sensor module having resistance property. The temperature sensor module is installed on the circuit... Agent: G. Link Co., Ltd.

20090123295 - Sump pump activation switch: A switching device for submersed sump pump. The switching device employs an internal logic circuit inside a housing having a metallic member extending therefrom for mounting. The member is adapted to engage with the curved surface of a hose and hose clamp engaged to the sump pump. The member is... Agent: Donn K. Harms Patent & Trademark Law Center

20090123296 - Water removal system: A water removal system for removing water from an elevator pit that includes a sump, a pump, a pump input tube, a pump output tube and a switching mechanism. The sump at least partially extends below a lower surface of the elevator pit. The plump mounted outside of the elevator... Agent: Dicke, Billig & Czaja

20090123297 - Microfluidic osmotic pump: A micro-fluidic osmotic pump capable of delivering a desired fluid at a predetermined destination comprising an inside fluid reservoir housing a compressible sac, a surrounding compartment having an external surface made up of a semi-permeable membrane and a fluid duct. The inside fluid reservoir houses a compressible sac containing a... Agent: Honeywell International Inc.

20090123299 - Method for driving a pump device: During switchover from a suctioning step to a discharging step, a mixing pump (1) carries out a correcting step for displacing a displacing member (17) in the direction for reducing an internal volume of a pump chamber (2); and during switchover from the discharging step to the suctioning step, the... Agent: Flynn Thiel Boutell & Tanis, P.C.

20090123298 - Method to prolong lifetime of diaphragm pump: A method for operating a diaphragm-type piston pump prolongs the life of the diaphragm. A pump has a predetermined pump volume defined by a length of a piston stroke. The pump having a variable drive. The method includes drawing a first volume of liquid into the pump through a first... Agent: Levenfeld Pearlstein LLC (tetra Pak)

20090123300 - System and method for controlling a variable displacement compressor: A system and method for controlling the displacement of a variable displacement compressor by feeding back crankcase pressure as part of a control scheme is disclosed.... Agent: Macmillan Sobanski & Todd, LLC

20090123301 - Manual hand crank pump and method: A manual hand crank pump has a housing with an inlet and an outlet and has a gearbox with an input and an output and a rotation speed of the output is greater than 50 or 100 times a rotation speed of said input. A hand crank connected to and... Agent: Schweitzer Cornman Gross & Bondell LLP

20090123302 - Screw compressor: A screw compressor comprising: a low pressure stage compressor body; a high pressure stage compressor body that further compresses a compressed air compressed by the low pressure stage compressor body; pinion gears for example, respectively, provided on, for example, a male rotor of the low pressure stage compressor body and,... Agent: Antonelli, Terry, Stout & Kraus, LLP

20090123303 - Reciprocating pump: The reciprocating pump for performing a pumping action by reciprocating an individual reciprocating member inside a plurality of cylinder sections arranged in parallel includes a seal case in which a cylinder section is formed and which functions as an independent pressure-resistant container; and a suction valve and a discharge valve... Agent: Osha Liang L.L.P.

20090123304 - Drive device: The invention relates to a drive device for a piston pump of a braking system of a vehicle having at least one piston element displaced in the longitudinal direction in a housing between an upper dead centre and a lower dead centre by means of an eccentric device. The eccentric... Agent: Ronald E. Greigg Greigg & Greigg P.l.l.c.

20090123305 - Detachable connecting rod compressor having the same: A detachable connecting rod includes a first member (410)a large end portion (411) having a trough hole (H1), and a first connection rod portion (412) extending from the large end portion (411), the first connection rod portion (412) having a pair of spaced apart arms defining a coupling groove (413)... Agent: Mckenna Long & Aldridge LLP

20090123306 - Coupling element cooling arrangement: A rotating system includes a drive member and a driven member. The rotating system includes a coupling positioned to rotatably couple the drive member to the driven member and a housing surrounding a portion of the coupling to define an inside and an outside, the housing having a plurality of... Agent: Michael Best & Friedrich LLP

20090123308 - Compressor: A compressor has stator of a motor is installed in a closed container, on two planes normal to the center axis 1a of the container. On each of the planes, the stator is welded to the container at three welding points. This mounting arrangement on two planes with three welding... Agent: GlobalIPCounselors, LLP

20090123307 - Electrical device and plug for an electrical device: Known pumping devices have a connection lid, a connection cap slipped over the connection lid, a hollow chamber formed between the connection lid and the connection cap, and electrical connections that extend through the connection cap into the hollow chamber. It is disadvantageous that when fuels containing water are being... Agent: Ronald E. Greigg Greigg & Greigg P.l.l.c.

20090123309 - Micropump: A pump including a stator, a rotor comprising an axial extension slidably and rotatably mounted at least partially in a rotor chamber of the stator, and at least first and second valves between an inlet and the rotor chamber, respectively between the rotor chamber and an outlet, that open and... Agent: Saliwanchik Lloyd & Saliwanchik A Professional Association

20090123310 - External inline lpg fuel pump: There is provided an external inline LPG fuel pump, and more particularly, an external inline LPG fuel pump; in which bushings are installed at first and second shafts of a motor to be fixed inside a housing, a ball is completely coupled to an end of the first shaft to... Agent: Jenkins, Wilson, Taylor & Hunt, P. A.

20090123311 - Plunger-slipper assembly of high-pressure pump: A plunger-slipper assembly of a high-pressure pump is herein claimed. The plunger-slipper assembly comprises a plunger and a slipper. The plunger has a first end and a second end, which are both spherical ends. The slipper comprises a coaxial hole for receiving the plunger and the coaxial hole has a... Agent: Charles E. Baxley, Esquire

20090123312 - Chemical liquid supplying apparatus: A chemical liquid supplying apparatus 10 has a bellows 11, and the bellows 11 includes a small-size bellows portion 13, a large-size bellows portion 14 with a larger volume change per axial-directional unit displacement amount than that of the small-size bellows portion 13, and a drive portion 12 provided therebetween.... Agent: Mccormick, Paulding & Huber LLP

05/07/2009 > patent applications in patent subcategories.

20090116969 - Rail tank car evacuation and transfer system and method: A rail tank car evacuation and transfer system and method. A method includes steps of providing an evacuation and transfer line having an inlet end and an outlet end, causing liquid contained inside the rail tank car to flow into the inlet end to at least a first location between... Agent: Portland Intellectual Property, LLC

20090116970 - Exposure head, an image forming apparatus and an image forming method: An exposure head, includes: imaging optical systems which are arranged in a first direction; light emitting elements which are arranged in a second direction orthogonal to or substantially orthogonal to the first direction and emit lights to be imaged by the imaging optical systems; a first wiring which is connected... Agent: Hogan & Hartson L.L.P.

20090116971 - Variable displacement compressor: A variable displacement compressor includes a housing, a rotary shaft, a swash plate, a suction pressure region, a suction throttle valve, an oil reservoir, a lubricating oil passage, a gas flow passage, a communication passage, and a throttle mechanism. The suction-pressure region includes a suction chamber and a suction passage.... Agent: Morgan & Finnegan, L.L.P.

20090116972 - Pressure washer pump housing stand: An apparatus and method support a pressure washer pump housing with a stand directly connected to the pressure washer pump housing.... Agent: Rathe Patent &IPLaw-briggs & Stratton

20090116973 - Pump for shock absorbers: A pump for use in combination with shock absorbers comprises a joint having a first portion, a second portion and a channel extending therethrough. A tube receives the second portion of the joint. A collar includes a first end and a second end, with the first end pivotally receiving the... Agent: Kamrath & Associates P.A.

20090116974 - Compressor: The present invention relates to a compressor, which can inhale refrigerant supplied to a swash plate chamber to cylinder bores through the inside of a driving shaft so that a flow channel structure is simplified, thereby enhancing a suction volumetric efficiency by reducing a loss due to flow channel resistance... Agent: Fulbright & Jaworski, LLP

20090116975 - Screw compressor comprising a relief valve: A compressor arrangement includes a compressor housing, an intake region defined in the compressor housing, a control pressure connection in communication with the intake region, a control pressure chamber in communication with the control pressure connection, a control piston disposed in the compressor housing beneath the control pressure chamber, a... Agent: Barnes & Thornburg LLP

20090116976 - High-pressure liquid supply pump: An object of the present invention is to reduce the pressure loss in a relief valve employed for a high-pressure liquid supply pump. Disclosed is a high-pressure liquid supply pump for pressurizing a liquid and supplying the pressurized liquid from a low-pressure side to a high-pressure side. The pump includes... Agent: Crowell & Moring LLP Intellectual Property Group

20090116977 - Compressor with muffler: A compressor assembly may include a shell, a discharge fitting, a muffler, a compression mechanism, and a motor. The shell may have an opening therethrough with the discharge fitting generally extending therefrom. The muffler may be in communication with the discharge fitting and may be external to the shell. The... Agent: Harness, Dickey & Pierce, P.L.C

20090116978 - Refrigerant compressor: The invention concerns a refrigerant compressor (1) with a cylinder block (4), in which a cylinder (14) is arranged, and a cylinder head (16), which covers the front side of the cylinder (14) and is connected to the cylinder block (4) by means of threaded bolts (18, 19). It is... Agent: Mccormick, Paulding & Huber LLP

20090116979 - Piston vibratory pump: A vibratory pump for dispensing a fluid in a highly controllable manner includes a pumping mechanism in which a piston is slidably disposed within a chamber having an inlet and an outlet spaced from one another. The piston is shaped similarly to the interior of the chamber and is capable... Agent: Boyle Fredrickson S.c.

20090116980 - Air and water conditioner by two separated air flows: This device is a water adiabatic evaporative cooler of two separated air flows contained in a cylindrical body, there is the humid peripheral flow which comprises the components of the water evaporation system, the other is the central flow designated as the ambient dry flow where the air current produces... Agent: Julio A. Monjes

20090116981 - Fluid pump: The invention relates to an electric fluid pump with a semi-axial construction, wherein the pump housing (32, 33, 34) has at least two identical pump housing parts (33, 34). This feature of the invention reduces the number of different components required to manufacture the electric fluid pump and thus reduces... Agent: Griffin & Szipl, PC

20090116982 - Hermetic reciprocating compressor with thrust ball bearing: A hermetic compressor includes a hermetic container that stores lubricating oil, an electrically-driven element having a stator and a rotor, a shaft having a compressing element driven by the electrically-driven element, and including an eccentric shaft portion, a cylinder block, a piston, a coupling device that connects the piston and... Agent: Brinks Hofer Gilson & Lione/panasonic

20090116983 - Reciprocating compressor: In a compressor, a motor includes a stator and a moving member that reciprocates. A frame supports the stator and a conductivity member flows at least a portion of magnetic flux flowing away from the stator back to the stator. Accordingly, the reciprocating compressor has enhanced energy efficiency.... Agent: Mckenna Long & Aldridge LLP

20090116984 - Submersible pump: a bladed wheel (5) placed in the enclosure, driven by the actuator (22) and capable of rotating about the axis (Z22) of the output shaft (225), is characterized in that a wall of the enclosure is defined by a base (3) having at least one inlet orifice (33) communicating with... Agent: Ralph A. Dowell Of Dowell & Dowell P.C.

20090116985 - Hermetic compressor: A hermetic compressor including a discharge valve system in a cylinder. A discharge valve system includes a discharge reed having an opening/closing portion and a discharge reed holding portion, a spring reed having a movable portion and a spring reed holding portion, and a stopper having a regulation portion and... Agent: Ratnerprestia

20090116986 - Universal vibratory pump: A vibratory pumping machine including a pumping chamber disposed within a housing for the machine having an inlet tube that is insertable into a container having a liquid therein to withdraw the liquid from the container upon actuation of the pumping mechanism also located within the housing. The chamber includes... Agent: Boyle Fredrickson S.c.

20090116987 - Pump: A pump includes a cylinder formed with a plunger chamber, a low-pressure portion, to which low-pressure fuel is supplied, a plunger reciprocating in the cylinder to pressurize fluid in the chamber, which is drawn from the portion, and a magnet valve having a valve body. A low-pressure passage communicates between... Agent: Nixon & Vanderhye, PC

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


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