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Pumps January recently filed with US Patent Office 01/09

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.
  
01/29/2009 > patent applications in patent subcategories. recently filed with US Patent Office

20090028720 - Vacuum pump: A vacuum pump capable of accurately detecting a rotor temperature based on a change in permeability of a magnetic material. Two targets are fixed to a nut opposed to a gap sensor. The nut is made of pure iron, and a surface of the nut opposed to the gap sensor... Agent: Sughrue Mion, Pllc

20090028721 - System for dewatering boreholes by means of alternative cycles of vacuum and exhaust, based on the principle of pneumatic displacement: A system of de-watering boreholes by alternating cycles of aspiration and expulsion based on pneumatic displacement, includes a double hose to be introduced into a borehole. The double hose includes a flexible outer hose and a flexible inner hose separated by an annular space therebetween, the double hose adapted to... Agent: Richard M. Goldberg

20090028722 - Compressor: Provided is a compressor having an enhanced capability of supplying oil to a thrust bearing and a radial bearing which are interposed between a center through-hole in a cylinder block and a driving shaft. To this end, the compressor 1 has an air bleed passage 31 which is configured to... Agent: Foley And Lardner LLP Suite 500

20090028723 - Capacity modulation system for compressor and method: An apparatus is provided and may include a compression mechanism, a valve plate associated with the compression mechanism and having at least one port in fluid communication with the compression mechanism, and a manifold disposed adjacent to the valve plate. A cylinder may be formed in the manifold and a... Agent: Harness, Dickey & Pierce, P.L.C

20090028724 - Self-modulated scroll compressor with optimized built-in volume ratio: A self-modulating scroll compressor includes a built-in volume ratio that is defined as the ratio of a volume of a compression pocket just after completion of suction, i.e. at a beginning of a compression cycle, to the volume of the compression pocket just prior to discharge, i.e. at the end... Agent: Carlson, Gaskey & Olds, P.c.

20090028725 - Hermetic compressor: A hermetic compressor for adjusting the length and cross sectional area of a communication path as a refrigerant flow passage, so as to attenuate a discharge pulsation and consequently, a vibration and noise thereof. The hermetic compressor, which includes a cylinder head having a discharge chamber to discharge a compressed... Agent: Staas & Halsey LLP

20090028726 - Suction muffler for hermetic compressor: Disclosed is a suction muffler for a hermetic compressor. The suction muffler includes first and second bodies coupled to each other. The first and second bodies have coupling protrusion and recess formed in corresponding positions, respectively. A coupling rib protrudes from the coupling protrusion, and a coupling channel is formed... Agent: Mckenna Long & Aldridge LLP

20090028727 - Diluter pump for chemistry analyzers: A chemistry analyzer precision pump is disclosed. In one general aspect, it has a pump block that defines a first pump chamber with a fluid port at a first end, an opening for a piston at a second end, and a seal mount located between the opening and the port.... Agent: Kristofer E. Elbing

20090028728 - Piezoelectric drive for scroll compressor: Compressors are defined by two relatively moving members, which have a relative orbital movement between the two. Piezoelectric elements are associated with each of the two moving members to cause the moving members to result in the orbital movement.... Agent: Carlson, Gaskey & Olds, P.c.

20090028729 - Metering pump assembly: The invention relates to a metering pump for admixing a fluid reduction agent into an exhaust gas flow, which comprises a premixing device in which the supplied reduction agent is mixed in a mixing region with a pressurized gas, wherein a first return valve is arranged in the premixing element... Agent: Panitch Schwarze Belisario & Nadel LLP

20090028731 - Ball bearing and a vacuum pump that is equipped with a bearing of this type: A ball bearing (1) has an inner race (2) and an outer race (3). In order to prevent the rotating parts from being damaged when the bearing assembly fails, the bearing has emergency bearing surfaces (14, 15) which are concentric to the rotational axis (6) and of which one is... Agent: Fay Sharpe LLP

20090028730 - Radial fan: The invention relates to a radial fan (1), preferably a high-speed radial fan, comprising a blower wheel (8), a housing (2) which receives a rotor (6) and a stator (5) of an electrical drive (4) of the blower wheel shaft (7), and a cooling system. The aim of the invention... Agent: Collard & Roe, P.c.

20090028732 - Pressurizing device: A pressurizing device comprising a control mechanism (7) which maintains the opening of a communication passage (22a) which allows the fluid pressure mechanism (6) to communicate with the outside when the fluid pressure mechanism is connected by a connection mechanism (5) and closing the communication passage (22a) by detecting the... Agent: Powell Goldstein LLP

20090028733 - Compressor valve plate assembly with integrated gasket: A valve plate assembly is provided including a plastic plate having a plurality of apertures therethrough, including at least one suction passage and at least one exhaust passage. A suction reed valve is disposed over the suction passage and an exhaust reed valve is disposed over the exhaust passage. A... Agent: Freudenberg-nok General Partnership Legal Department

20090028734 - Pump assembly with pressable head: A pump assembly with a pressable head comprises a push tube, an inner tube, a stop valve, and an outer tube; a top of the push tube passing through the outer tube; the push tube being communicated to the inner tube; a bottom of the inner tube being formed with... Agent: Chien-hui Su

  
01/22/2009 > patent applications in patent subcategories. recently filed with US Patent Office

20090022602 - Method and apparatus for resisting disabling fouling of compressors in multistage compression systems: A method of operating a multistage gas compressor system including providing a plurality of compressor stages connected in series, receiving a gas flow having contaminants within a gas passage, and supplying solvent to the gas passage at or upstream of a compressor in a compressor stage of the plurality of... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.c.

20090022603 - Method for the pneumatic conveying of water-absorbent polymer particles: A process for pneumatic delivery of water-absorbing polymer particles, the compressor used for pneumatic delivery having a steep characteristic and the initial gas rate in the delivery corresponding to a Froude number of from 10 to 18.... Agent: Marshall, Gerstein & Borun LLP

20090022604 - Suction structure in piston type compressor: A suction structure is provided for allowing refrigerant from a suction pressure region in a 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. In the connecting state an outlet of a supply... Agent: Morgan & Finnegan, L.l.p.

20090022605 - Hermetic compressor: A hermetic compressor having improved configuration of a cylinder head to more efficiently attenuate noise and vibration of refrigerant discharge. The hermetic compressor includes a cylinder block having a compression chamber in which a piston rectilinearly reciprocates, and a cylinder head coupled with the cylinder block to hermetically seal the... Agent: Blank Rome LLP

20090022606 - Water pump: In one embodiment of the present invention, a water pump (10) is configured such that rotation is transmitted in a non-contact condition from a drive-end rotation member (20) whereto rotation is transmitted from an engine to a driven-end rotation member (30) having a pump impeller (31). The drive-end rotation member... Agent: Oliff & Berridge, Plc

20090022607 - Arrangement for delivering fluids: An arrangement for delivering fluids has a fluid pump having a pump wheel (90), which wheel is joined to a first permanent magnet (92). The pump wheel (90) is rotatably arranged inside a liquid-tight pump housing (80, 82, 84, 86, 88). This housing is shaped, near the first permanent magnet... Agent: Ware Fressola Van Der Sluys & Adolphson, LLP

20090022608 - Drive device for the oil pump of a motor vehicle transmission: A drive device (2) for the oil pump (6) of a motor vehicle automatic transmission, in which the oil pump (6) on the one hand can be coupled to the drive motor by way of an overrunning clutch (34) and on the other hand is drivingly connected to an auxiliary... Agent: Davis Bujold & Daniels, P.l.l.c.

20090022611 - Cooling fan: A cooling fan includes a fan housing (30) having a central tube (34) extending upwardly therefrom; the central tube has a bottom, annular protrusion (31). A bearing (61) is received in the central tube and mounted on the protrusion. A stator (20) is mounted around the central tube. A rotor... Agent: Pce Industry, Inc. Att. Cheng-ju Chiang

20090022609 - Device for hydroprotection of a borehole pump electric motor: The invention relates to crude oil production, and can be suitably used for hydroprotection of submersible electric centrifugal motors. A hydroprotection protector of a borehole pump electric motor comprises at least one stage, which stage includes a cylindrical body (7), a tube (8) coaxially positioned inside said body and surrounding... Agent: Walker & Jocke, L.p.a.

20090022610 - Motor centrifugal pump: The invention relates to a motor centrifugal pump having a plastic-injection-moulded stator core of the electric motor, wherein cooling channels are arranged in the plastic, through which channels the conveying medium flows.... Agent: K.f. Ross P.c.

  
01/15/2009 > patent applications in patent subcategories. recently filed with US Patent Office

20090016898 - Compressor device: Compressor including a housing (2) containing a compressor element (6) that is powered by a variable speed motor (7) with a control box (8) with a set maximum number of revolutions (Nmax) for the compressor element (6), an air cooling blower (10) which sucks air from the environment via an... Agent: Bacon & Thomas, PLLC

20090016899 - Oil well pump apparatus: An oil well pumping apparatus for pumping oil from a well to a wellhead provides a tool body that is sized and shaped to be lowered into the production tubing string of the oil well. A working fluid is provided that can be pumped into the production tubing. A prime... Agent: Garvey Smith Nehrbass & North, LLC

20090016900 - Well jet device and the operating method thereof: A well jet device for testing oil-gas wells comprises a body provided with bypass windows and an insert provided with a jet pump. The insert has channels and a mounting seat embodied therein, carrying a sealing unit with a channel for a cable and well instruments fixed thereto. An output... Agent: Patenttm.us

20090016901 - Self-priming electronic metering pump and priming methodology: An electronic metering pump system has a fluid flow detector for monitoring the output of the electronic metering pump to detect loss of prime. The fluid flow detector, upon detecting loss of fluid flow, initiates an electronic signal to a downstream solenoid valve which closes the output conduit of the... Agent: Barry I. Friedman, Esq. Metz Lewis LLC

20090016902 - Air comperssor shroud assembly: The present invention generally relates to the field of air compressors and particularly to a shroud assembly for use with air compressors. An aspect of the present invention is directed to a shroud assembly having an outfit shroud, including a top outfit shroud coupled with a bottom outfit shroud; and,... Agent: The Black & Decker Corporation

20090016903 - Precision pump with multiple heads: A high purity, high precision pump capable of pumping more than one type of chemistry or process fluid without requiring cleaning or changing of surfaces contacting the processing fluid. The pump employs a single drive mechanism coupled in parallel with multiple pumping chambers, each capable of handling a different type... Agent: Caesar, Rivise, Bernstein, Cohen & Pokotilow, Ltd.

20090016904 - Compressor: A first tank, a main body of a compressor, an electric motor, and a second tank are combined to form a single assembly. A booster type air compressor as the single assembly including the first tank may be easily carried. The first tank at an inlet side is integrally combined... Agent: Rader Fishman & Grauer PLLC

20090016905 - Fluid mechanical converter: The invention relates to a fluid mechanical converter having at least one energy-accumulator mass system that can be powered by a power drive. To provide a fluid mechanical converter, which improves overall efficiency using the simplest components, it is proposed according to the invention that the displacement of the driven... Agent: St. Onge Steward Johnston & Reens, LLC

20090016906 - Mounting apparatus for fan: A mounting apparatus for a fan (30) includes a chassis (10), and a locking member (40). The chassis includes a bottom plate (12), two parallel installing plates (22, 24) perpendicularly secured on the bottom plate, and two parallel partition plates (26) perpendicularly secured between the installing plates. The partition plates... Agent: PCe Industry, Inc. Att. Cheng-ju Chiang

20090016907 - Dynamic balancer with speed-related control mechanism: A dynamic balancer for a prime mover, such as an internal combustion engine, with at least one balance shaft driven by the crankshaft of the engine, the at least one balance shaft. The pressure generator creates an output signal of pressurized working fluid whose pressure is speed-related. In one embodiment,... Agent: Magna International, Inc.

20090016908 - Multi-cylinder, dry-running piston compressor a cooling air flow: A multi-cylinder dry-running piston compressor for generating compressed air. The piston compressor includes a crankcase having an interior and a crankshaft rotatably mounted in the crankcase. Also included are two connecting rods mounted in the crankshaft and configured to run counter to one another. Further included are two cylinders mounted... Agent: Barnes & Thornburg LLP

20090016909 - Precision pump with multiple heads: A pump for use in handling one or more different process fluids includes a plurality of pumping chambers having a process fluid inlet and a process fluid outlet, process fluid outlet coupled to a process fluid valve on each pumping chamber for selectively preventing and allowing the flow of process... Agent: Caesar, Rivise, Bernstein, Cohen & Pokotilow, Ltd.

20090016910 - Coolant pump for processing machinery: A coolant pump for processing machinery includes a housing, a water guide member, and a drive device. The housing includes a chamber, a wind inlet, and a wind outlet. The water guide member includes a hollowed portion, a water inlet, and a water outlet. The drive device includes a transmission... Agent: Bacon & Thomas, PLLC

20090016911 - Electric power connection for electrically assisted turbocharger: A turbocharger comprises a compressor housing for accommodating a compressor wheel drivable by an electric motor and an electric motor for driving a compressor wheel accommodated in a compressor housing, said electric motor being supplied with electric power through at least one motor plug connector. The turbocharger further comprises a... Agent: Honeywell Turbo Technologies

20090016912 - Internal gear fuel pump: A fuel pump has a housing (6), an electric motor (1) arranged in the housing (6) and is provided with a stator (7) and a rotor (8) having a shaft (9). The shaft (9) extends to the area of a pump stage (2) and passes therethrough. The pump stage (2)... Agent: Baker Botts L.L.P. Patent Department

20090016913 - Balanced dual rocking piston pumps: f

20090016914 - Thin fan structure: A thin fan structure is composed of a driving unit and a rotating unit. The driving unit has a base, a coil circuit board and a shaft, in which the coil circuit board is disposed at the base. The rotating unit has a bearing, a fan blade, an iron-containing metal... Agent: Troxell Law Office PLLC

20090016915 - Pump, especially for the blood treatment: The invention relates to a pump, especially usable as a peristaltic pump in an apparatus for blood treatment, wherein it is provided with at least a hammer element which interacts with at least one tube portion in which a fluid to be pumped flows and with motion means for said... Agent: The Webb Law Firm, P.C.

20090016916 - Bidirectional piston pump: A two-way mechanical pump for a steam appliance having a main body having a boiler with a water inlet and a steam outlet positioned therein in provided. The bidirectional pump on two-way piston pump in accordance with the invention includes a cylinder separated into two chambers by a piston coupled... Agent: Michael I. Wolfson Greenberg Traurig, LLP

20090016917 - Compact dual rocking piston pump with reduced number of parts: A dual rocking piston pump is disclosed which includes a first piston with a first connecting rod eccentrically mounted to a rotor shaft and a second piston with a second connecting rod eccentrically mounted to the rotor shaft. The rotor shaft passes through a first bearing and a second bearing... Agent: Miller, Matthias & Hull

  
01/08/2009 > patent applications in patent subcategories. recently filed with US Patent Office

20090010766 - Apparatus and method for controlling operation of linear compressor: An apparatus and method for controlling an operation of a reciprocating compressor are disclosed in which a frequency is variably controlled to uniformly maintain a phase difference between current and stroke, a load is determined with a size of frequency at a point of time when the phase difference between... Agent: Greenblum & Bernstein, P.L.C

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,... Agent: Wpat, PC

20090010768 - Pumping apparatus for shear-sensitive fluids: Pumping systems for pumping shear-sensitive fluids between first and second reservoirs. In various embodiments, the pumping system may include a portable platform that supports at least one diaphragm pump thereon. The diaphragm pumps are arranged for fluid communication with first and second reservoirs. Valve arrangements may be provided that enable... Agent: K&l Gates LLP

20090010769 - Fluid transporting device: An arrangement for conveying fluids has a fluid pump (91) implemented in the manner of a centrifugal pump, having a pump wheel (90) that is connected to a first permanent magnet (92). The arrangement further has an electronically commutated internal-rotor motor (70) having a stator (68), inside which stator is... Agent: Ware Fressola Van Der Sluys & Adolphson, LLP

20090010770 - Compressor with rotating handle: An air compressor assembly including a rotatable handle that provides protection and structure for transporting the apparatus. The apparatus further includes a plurality of air tanks each of which are configured to be removable and replaced when necessary.... Agent: Steptoe & Johnson LLP

20090010771 - Motor cooler: A cooling fan comprises an outer housing. A motor support is fixed to the outer housing and a motor is mounted to the motor support. A hub is rotatably coupled to the motor and, with the motor support, forms a motor enclosure that substantially surrounds the motor. A plurality of... Agent: Hewlett Packard Company

20090010772 - Device and method for transferring linear movements: The invention relates to a device, a method and the use of the device, for transferring linear movements. The device consists of a hollow cylinder, in which a pressurized space is found, wherein the pressurized space is bounded by a connection flange, which is attached to a terminal opening of... Agent: Kriegsman & Kriegsman

20090010774 - Air compressor and reservoir for topping off low pressure tires: A small volume capacity pump is used to pressurize a small air tank, and the tank is used to top off pressure in an automobile tire or other receptacle. The tank preferably has a reservoir measuring 200-300 cc, and is pressurized to at least 500 psi. The pump preferably has... Agent: Fish & Associates, PC Robert D. Fish

20090010773 - Pressure equalizer in thrust chamber electrical submersible pump assembly having dual pressure barriers: A well pump assembly has a rotary pump with an electrical motor that contains a motor lubricant. A thrust chamber is mounted between the motor and the pump, the thrust chamber containing a thrust chamber lubricant. Seals prevent the entry of thrust chamber lubricant into the motor chamber. A pressure... Agent: Bracewell & Giuliani LLP

20090010775 - Dc brushless motor pump: A DC brushless motor pump comprises a stator unit consisting of a plurality of silicon steel laminations and a coil, a rotor, an excitation circuit connected to the stator unit, a signal controller supplying power to the excitation circuit, and a magnetic induction module connected to the signal controller to... Agent: Sinorica, LLC

20090010776 - Displacement type compressor having a self-start synchronous motor and start load reducing means: In order to make a displacement type compressor be able to reliably start without increasing an outside diameter dimension of the compressor while using a self-start synchronous motor having high energy efficiency, the displacement type compressor according to the invention includes the self-start synchronous motor which starts as an induction-motor... Agent: Crowell & Moring LLP Intellectual Property Group

20090010778 - Diaphragm pumping device: A diaphragm pumping device includes a housing having a partition to form an upper chamber and a lower chamber, an inlet port for receiving a fluid, and an outlet port, a bladder attached to the housing and having a compartment communicating with the chambers of the housing, two check valves... Agent: Charles E. Baxley, Esquire

20090010777 - Fluid circulation device: The fluid circulation device comprises a circuit (1) of the fluid to be pumped with a rigid cavity (1.2) closed off by a soft membrane (1.3) that cooperates with drive means (2) driven by a motor (3) in to-and-fro movements. The face of the drive means (2) intended to cooperate... Agent: Young & Thompson

20090010780 - Micropump: A micropump having a diaphragm portion, a valve portion of an intake-side check valve, and a valve portion of a discharge-side check valve formed in a single elastic-member sheet. A piezoelectric actuator is attached onto a back surface of the diaphragm portion. The elastic-member sheet is sandwiched between a first... Agent: Dickstein Shapiro LLP

20090010779 - Piezoelectric micropump: A piezoelectric micropump in which a pump chamber is isolated by a diaphragm. A piezoelectric element is disposed on a back surface of the diaphragm, and the diaphragm is deformed by bending deformation of the piezoelectric element to change the volume of the pump chamber and transport fluid in the... Agent: Dickstein Shapiro LLP

20090010781 - Bearing structure for cooling fan: A cooling fan includes a fan housing (50) having a central tube (52), a bearing structure received in the central tube, a stator (60) mounted around the central tube, and a fan blade set (70). The bearing structure includes a shaft (30) being rotatably received in the central tube and... Agent: PCe Industry, Inc. Att. Cheng-ju Chiang

20090010786 - Electrically-driven compressor: An electrically-driven compressor including a housing, an electric motor, a compression mechanism, a cover member, a motor drive circuit, and a sealing member is disclosed. The electric motor is accommodated in the housing. The compression mechanism is accommodated in the housing and operated by the electric motor. The cover member... Agent: Morgan & Finnegan, L.L.P.

20090010787 - Motor pump for headlamp cleaner: A motor pump for a headlamp cleaner includes a motor, a control circuit board for driving the motor, an impeller rotatable by the motor, a plurality of terminal pieces adapted to be coupled to an outside connector, and a casing. The casing includes a pump chamber having a washer fluid... Agent: Osha Liang L.L.P.

20090010782 - Fan unit, particularly for a vacuum cleaner: A vacuum cleaner fan with an electric drive motor having a stator assembly and a rotor. The stator assembly and rotor are disposed in a bearing pot. An at least single-stage fan unit is driven by the electric motor. The fan unit includes a guide stage, a suction cap, and... Agent: Darby & Darby P.C.

20090010783 - Submersible pump unit: A submersible pump unit having a wet-running electric motor and only a single impeller can be driven by the electric motor with a rotation speed greater than 20,000 rpm. The rotor of the electric motor has a diameter of less than 25 mm.... Agent: Panitch Schwarze Belisario & Nadel LLP

20090010784 - Powdered metals and structural metals having improved resistance to heat and corrosive fluids and b-stage powders for making such powdered metals: Improved resin-bonded powdered metal components are protected against corrosion and reduction of crush strength during contact with corrosive fluids such as alcohols, ethanol-containing fuels, glycols and peroxide-containing fuels by a resin system coating that, when cured, provides a relatively high crosslink density and relatively few hydrolysable radicals. Magnetic properties of... Agent: John D. Ritchison Ritchison Law Offices, PC

20090010785 - Rotational apparatus: Disclosed herein are apparatuses having a stator and a rotor configured to provide both a magnetic drive means and a magnetic bearing means for a rotatable element. The stator and rotor are configured to operate in unison to provide a magnetic force to rotate a rotatable element associated with the... Agent: Lahive & Cockfield, LLP Floor 30, Suite 3000

20090010788 - Hermetic compressor: Stopper contains abutment section at a position that corresponds to arm section so as to keep a clearance from arm section of discharge reed. The structure above allows discharge reed to have two-stage spring characteristics; discharge reed exhibits a weaker springiness until arm section abuts against abutment section, and then... Agent: Wenderoth, Lind & Ponack L.L.P.

20090010789 - Fuel pump for internal combustion engine: A fuel pump includes a pump housing having a compression chamber. A plunger is axially movable in the pump housing for pressurizing fuel in the compression chamber. A discharge valve is configured to open to supply fuel from the compression chamber to an internal combustion engine when pressure in the... Agent: Nixon & Vanderhye, PC

  
01/01/2009 > patent applications in patent subcategories. recently filed with US Patent Office

20090004024 - Multi-channel controller: One aspect of the present invention provides a multi-channel controller that can control a plurality of fuel pump devices, with each fuel pump device having its own dedicated communications channel. Accordingly, aspects of the present invention enable existing wiring and fuel pump devices to be preserved while turning an existing... Agent: Ballard Spahr Andrews & Ingersoll, LLP

20090004025 - Variable displacement compressor: A variable displacement compressor comprising a first control means for detecting the suction pressure of fluid or the crank chamber pressure and controlling the suction pressure to a target control value, and a second control means including means for detecting high-pressure side pressure to control the displacement of the compressor... Agent: Baker Botts LLP C/o Intellectual Property Department

20090004026 - Apparatus and method for controlling operation of linear compressor: An apparatus and method for controlling an operation of a reciprocating compressor are disclosed in which a point of inflection with respect to an operation frequency of the reciprocating compressor is detected at a point of time when a phase difference between current and stroke is uniformly maintained, and an... Agent: Mckenna Long & Aldridge LLP

20090004027 - Ventilation of an operating element: A method of actuating a piston having a first side and a second side includes the steps of generating a counter-ventilation pulse having a duration and amplitude defined to achieve a predetermined operating speed of the piston and a predetermined damping of a final position of a piston, applying an... Agent: Darby & Darby P.C.

20090004028 - Device for guiding powdery fluidic media: The invention relates to a device for guiding powdery fluidic media, in particular powder paint, including a receptacle which is provided with an inner chamber for the media which is to be guided, and from where the medium is suctioned via a connection channel which can be closed by a... Agent: Factor & Lake, Ltd

20090004029 - Multistage compressor unit with cooling device: A multistage compressor unit consisting of a low-pressure charging device having a low-pressure compressor housing, a high-pressure charging device having a high-pressure compressor housing and a cooling device, characterised in that the cooling device comprises a cooling device housing and the cooling device housing of the cooling device is indirectly... Agent: Bachman & Lapointe, P.C.

20090004030 - Compressor swash plate and method of manufacturing the same: The invention provides a compressor swash plate which is lead-free and is able to demonstrate a superior durability. A compressor swash plate in the invention includes a base member and a sliding layer being formed on the surface of the base member and constituting at least a sliding surface for... Agent: Woodcock Washburn LLP

20090004031 - Hermetic compressor: A hermetic compressor includes a hermetic container having an inner space, a cylinder accommodated in the hermetic container and arranged to compress refrigerant, an intake muffler accommodated in the hermetic container and having a silencer space having a longitudinal direction, a communication tube communicating with the cylinder, and a tail... Agent: Ratnerprestia

20090004032 - Deswirl mechanisms and roller bearings in an axial thrust equalization mechanism for liquid cryogenic turbomachinery: Vane, fin, and hole arrangements establish a predetermined reduced swirl at the inlet of mechanical seals and the inlet of a variable axial orifice gap which act in harmony as an axial thrust equalizing system for use in liquid cryogenic turbines and pumps. In said establishment the stiffness, damping, and... Agent: Ray K. Shahani, Esq., Attorney At Law

20090004033 - Pumping cassette: A pumping cassette including a housing having at least two inlet fluid lines and at least two outlet fluid lines. At least one balancing pod within the housing and in fluid connection with the fluid paths. The balancing pod balances the flow of a first fluid and the flow of... Agent: Deka Research And Development Corporation C/o Wolf, Greenfield & Sacks, P.C.

20090004034 - Piezoelectric fan: A piezoelectric fan comprising two or more prongs and a bulk flow portion.... Agent: Cool Patent, P.C. C/o Intellevate

20090004035 - Motor/pump assembly with improved sealing: A motor/pump assembly, in particular for a motor vehicle braking apparatus is fixed axially on an end face of the pump housing. The brush plate forms the termination face of the motor with respect to the pump housing. The boundary area of the motor housing which faces the pump housing... Agent: Baker Botts L.L.P. Patent Department

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


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