Patents Examined by Michael Koczo
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Patent number: 7351043Abstract: A substantially horizontal compressor including a housing having a main body portion with an open end. An end cap is secured to the main body portion with the end cap being provided with a plurality of apertures. The hermetic terminal body of the compressor is sealably fitted into one of the plurality of apertures located in the end cap. One of the apertures is sealably fitted with a heater well in which a substantially cylindrical heater element is removably received. A third aperture may be provided in the end cap in which a sight glass is sealably secured for checking the oil level in the oil sump. An indentation is formed in the end cap to increase the rigidity of the end cap. The proximity of the terminal assembly and heater well allows the wiring therefor to be part of the same wiring harness.Type: GrantFiled: February 23, 2006Date of Patent: April 1, 2008Assignee: Tecumseh Products CompanyInventors: David K Haller, Robin G Skinner
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Patent number: 7287963Abstract: A pump priming system may include two or more pumps. In one example, a system for pump priming can include a first pump and a second pump. Each pump can have an inlet adapted for a suction force and an outlet adapted for a pressure force. The system can include a tube or bleeder, in which a first end of the tube is connected to the outlet of the first pump and a second end of the tube is connected to the inlet of the second pump. The tube can be adapted for a flow from the first pump to the second pump. The tube can be capable of removing air from the first and second pumps.Type: GrantFiled: September 30, 2003Date of Patent: October 30, 2007Assignee: Dimension One SpasInventor: Phillip Basora
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Patent number: 7232293Abstract: A manual hydraulic pump includes a cylinder block 10 and an end block 8. The rear end of the cylinder block 10 and the end block 8 defines an end space 21 between them. The cylinder block 10 has cylinders 13 and oil passages 23. Each oil passage 23 extends between the rear end of one of the cylinders 13 and the end space 21. The end block 8 has a pair of cylindrical holes 27 opening into the end space 21. The end block 8 also has a pair of inlet/outlet ports 25 each communicating with the outside of the pump and one of the cylindrical holes 27. A distributing valve 22 is put in the end space 21 and spring-biased into compressive contact with the rear end of the cylinder block 10. The distributing valve 22 substantially takes the form of a disc and has a thickness smaller than the distance between the adjacent ends of the blocks 10 and 8. The distributing valve 22 has a pair of arcuate ports 22a formed on its front side.Type: GrantFiled: December 10, 2004Date of Patent: June 19, 2007Assignee: Marol Co., Ltd.Inventors: Katsuhiko Sasayama, Kenichi Shimada
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Patent number: 7229257Abstract: A horizontal type compressor comprising: a differential pressure plate for dividing an inside of a casing into a high pressure chamber and a lower pressure chamber and thus maintaining an oil level of the high pressure chamber to be higher than that of the lower pressure chamber; and a lubricating unit for supplying oil stored in the high pressure chamber to each sliding part in the compressor and making the oil which finished a lubricating operation return to the high pressure chamber from the lower pressure chamber. The compressor smoothly supplies refrigerant oil and minimizes an amount of the refrigerant oil discharged outside the compressor, thereby prolonging a life of the compressor and increasing a reliability of the compressor. Also, the differential pressure plate and the muffler are integrally formed, thereby reducing a fabricating cost and reducing an assembling process.Type: GrantFiled: November 10, 2003Date of Patent: June 12, 2007Assignee: LG Electronics Inc.Inventors: Hyun-Jun Ko, Youn-Bong Han
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Patent number: 7217108Abstract: The hose pump comprises an eccentric drive with numerous eccentric discs (21) fastened to a shaft (20). Each eccentric disc (21) drives a crank drive (24) having a connecting rod (25). At the end of the connecting rod (25), a pump finger (11) is borne for compressing a pump hose (10). A sealing diaphragm (27) is disposed between the eccentric drive and the pump hose (10) for preventing liquid from intruding into the interior of the housing (16). The connecting rod (25) sealingly passes through the sealing diaphragm (27). The sealing diaphragm (27) comprises lateral folds (31) so that it does not exert any substantial forces upon the crank drive (24). The hose pump has a low power consumption and permits a small structure.Type: GrantFiled: July 3, 2003Date of Patent: May 15, 2007Assignee: B. Braun Melsungen AGInventors: Dieter Herwig, Reinhard Knuth
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Patent number: 7217104Abstract: A system for detecting a collection of liquid, notifying a person or thing that liquid has been detected and pumping the liquid. The system includes a control unit, at least one sensor and relay and a pump. Preferably, the system includes a first sensor that senses a collection of liquid which activates a relay which completes an electrical circuit to activate a notification means, such as a siren, light, telephone dialer or other notification device. Preferably, the system also includes a second sensor that senses an additional collection of liquid and thereby activates a second relay which completes an electrical circuit and delivers DC power to the pump which pumps the additional collection of liquid to its desired location. The control unit includes a transformer, relays and plugs to connect to an AC or DC power supply, typically a standard 110 volt AC, 15 amp power supply.Type: GrantFiled: September 22, 2003Date of Patent: May 15, 2007Inventor: Carl M. Ross
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Patent number: 7207785Abstract: A vane pump is disclosed for use with gas turbine engines that is adapted and configured to provide a failure mode similar to that of a traditional gear pump. The vane pump includes a pump housing, a cam member, a cylindrical rotor member and a mechanism for communicating a high pressure fluid from the discharge arc region to the inlet arc region when the tip surface of each vane element has experienced a predetermined amounted of wear so as to prevent pump startup. The tip surface of each vane element wears as a result the sliding contact with the circumferential surface of the pumping cavity.Type: GrantFiled: November 17, 2003Date of Patent: April 24, 2007Assignee: Goodrich Pump & Engine Control Systems, Inc.Inventors: William H. Dalton, Kurt G. Grochowski
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Patent number: 7201566Abstract: In a reciprocating-piston machine, in particular a refrigerant compressor for a motor vehicle air-conditioning system, including a machine shaft, a plurality of pistons are arranged, at the same distance from the machine shaft, on a cylinder envelope defined by the axes of the pistons and extending around the machine shaft, and an annular pivoting disc which is driven by the machine shaft and which engages the pistons via a joint arrangement, the joint arrangement has an at least partially spherical receptacle, in which at least one sliding element structure is arranged moveably relative to the associated piston and relative to the pivoting disc, including a first sliding element having a first sliding face in the form of a spherical segment with a first geometric center (M1, M3), and a second sliding element having a second sliding face in the form of a spherical segment with a second geometric center (M2, M4) arranged at a distance from the first geometric center.Type: GrantFiled: November 14, 2003Date of Patent: April 10, 2007Assignees: DaimlerChrysler AG, Obrist Engineering GmbHInventors: Roland Cäsar, Peter Kuhn
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Patent number: 7003959Abstract: A high temperature splash plate for use in the combustor of a gas turbine engine that also is a specular optical reflector. A thin layer of a high temperature reflector is applied to the surface of the splash plate of the component that forms a boundary for hot combustion gases. The component typically includes a thermal barrier coating overlying the high temperature metallic component that permits the component to operate at elevated temperatures. The thermal barrier coating must be polished in order to provide a surface that can suitably reflect the radiation into the gas flow path. A thin layer of the high temperature reflector then is applied over the polished thermal barrier coating by a process that can adequately adhere the reflector to the polished surface without increasing the roughness of the surface. The surface reflects radiation in the direction of the turbine back into the hot gas flow path. The reflected radiation is not focused onto any other hardware component.Type: GrantFiled: December 31, 2002Date of Patent: February 28, 2006Assignee: General Electric CompanyInventors: John F. Ackermann, Paul V. Arszman, Bangalore A. Nagaraj, Craig D. Young, Nicole Justis
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Patent number: 6968676Abstract: Propulsion from combustion of solid propellant pellet-projectiles for providing a useful propulsion that has the advantages of both solid and liquid propulsion engines, and also can make use of either solid chemical propellants or fissionable nuclear material as the fuel. Preferred methods and systems can include a storage chamber for storing solid propellant pellets, a feeding system having a pellet feeding channel and a pellet feeding mechanism connected to the storage chamber and to a gun assembly, which is positioned along a longitudinal axis to eject the pellets at a certain velocity. A triggering system positioned between gun assembly and thrust chamber can initiate the propellant pellet-projectile, and a thrust chamber having a combustion chamber for combustion of propellant pellet-projectile with an exhaust nozzle.Type: GrantFiled: October 25, 2002Date of Patent: November 29, 2005Inventor: Vinu B. Krishnan
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Patent number: 6955045Abstract: Variable displacement pump pumps oil to one or the other ports of an oil operated vehicle wheel motor to drive a lawn mower.Type: GrantFiled: February 19, 2003Date of Patent: October 18, 2005Assignee: Magic Circle CorporationInventor: Arthur Leon Evans
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Patent number: 6945040Abstract: If an instruction to move a ram (5U) is issued, a ram instructed speed is instructed to be suppressed to a certain warming-up speed not higher than a target speed until a release speed determination section (75) determines that a moving speed of the ram (5U) calculated by a ram moving speed calculation section (51) reaches a predetermined warming-up release speed; if the release speed determination section determines that the moving speed of the ram (5U) reaches the predetermined warming-up release speed, the warming-up speed is released to accelerate the ram (5U) to the target speed.Type: GrantFiled: March 2, 2001Date of Patent: September 20, 2005Assignee: Amada Co., Ltd.Inventors: Kazuhiro Kanno, Nobuaki Ariji
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Patent number: 6935096Abstract: A device for compressing gas using thermal energy. In a subsonic embodiment the heat gas passes through a convergent pipe C1 where it is provided with operating velocity, a convergent pipe C2 where it is simultaneously maintained at high speed and cooled by evaporation of liquid sprayed by nozzles R with adjustable position distributed in C2. In a supersonic embodiment, the gas reaches sonic velocity at the throat of C2 and supersonic velocity in a divergent DG, then compressed in a convergent CG1 and simultaneously cooled by evaporation of sprayed liquid. In both embodiments, the gas is finally compressed in a subsonic divergent DG1. Pipes with variable geometry enable to modify the cross-sections of the throats of the device. The device is essentially designed for thermoelectric power stations.Type: GrantFiled: January 25, 2001Date of Patent: August 30, 2005Inventor: Joseph Haiun
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Patent number: 6925811Abstract: A high temperature gas turbine component for use in the gas flow path that also is a specular optical reflector. A thin layer of a high temperature reflector is applied to the flow path surface of the component, that is, the surface of the component that forms a boundary for hot combustion gases. The component typically includes a thermal barrier coating overlying the high temperature metallic component that permits the component to operate at elevated temperatures. The thermal barrier coating must be polished in order to provide a surface that can suitably reflect the radiation into the gas flow path. A thin layer of the high temperature reflector then is applied over the polished thermal barrier coating by a process that can adequately adhere the reflector to the polished surface without increasing the roughness of the surface. The high temperature reflector can be applied to any surface aft of the compressor, such as on a combustor wall. The surface reflects radiation back into the hot gas flow path.Type: GrantFiled: December 31, 2002Date of Patent: August 9, 2005Assignee: General Electric CompanyInventors: Nicole Justis, John F. Ackermann, Paul V. Arszman, Bangalore A. Nagaraj, Craig D. Young
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Patent number: 6923626Abstract: A variable displacement compressor has a housing, a drive shaft, a rotor, a swash plate, a piston and a decelerating mechanism. The housing includes a cylinder bore and supports the drive shaft. The rotor is secured to the drive shaft. The swash plate is operatively connected to the rotor and the drive shaft so as to rotate therewith and varies its inclination angle relative to the drive shaft. The piston is connected to the swash plate so as to reciprocate in the cylinder bore with rotation of the swash plate. A stroke of the piston varies in accordance with the inclination angle of the swash plate. The deceleration mechanism between the rotor and the swash plate decelerates the inclination speed of the swash plate in a range from a near maximum inclination angle to the maximum inclination angle when the swash plate inclines to increase the stroke of the piston.Type: GrantFiled: August 1, 2002Date of Patent: August 2, 2005Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Masaki Ota, Tomohiro Wakita, Tomoji Tarutani, Hirotaka Kurakake, Yoshinobu Ishigaki, Kazuhiro Nomura, Yoshinori Inoue, Satoshi Umemura, Kazuhiko Minami
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Patent number: 6920758Abstract: The objective is to provide a gas turbine and the combustor thereof in which super high frequency combustion oscillation and the generation of NOx are reduced. The fluctuation in pressure which induces the fluctuation in heat liberation is suppressed in the gas turbine combustor comprising a plurality of main fuel supply nozzles, each having a premixing nozzle at the top end part thereof, by providing in the space upstream from the premixing nozzles partition elements for dividing the space along the axis of the combustor or a honeycomb element having air passages in the axial direction, or by providing premixing nozzles composed of cylindrical elements with many holes.Type: GrantFiled: August 30, 2002Date of Patent: July 26, 2005Assignee: Mitsubishi Heavy Industries Ltd.Inventors: Keisuke Matsuyama, Katsunori Tanaka, Yasuhiko Ikegami, Masaki Ono, Kazufumi Ikeda
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Patent number: 6920748Abstract: A method for operating an aircraft engine facilitates preventing ice accumulation on the aircraft engine. The method comprises coupling a semi-permeable membrane to the engine adjacent an outer surface of the engine, coupling a fluid reservoir to the aircraft engine in flow communication with the semi-permeable membrane, and supplying fluid from the fluid reservoir to the semi-permeable membrane to facilitate preventing ice accumulation on the aircraft engine outer surface.Type: GrantFiled: July 3, 2002Date of Patent: July 26, 2005Assignee: General Electric CompanyInventors: John Frederick Ackerman, William Kent Wagner
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Patent number: 6916158Abstract: A piston pump including an inlet manifold, and outlet manifold, and a piston ring sandwiched between the inlet and outlet manifolds. The inlet manifold has a first face and a second face with at least one outlet formed in the second face. The outlet manifold has a first face and a second face, and includes at least one inlet formed in the outlet manifold first face. The piston ring has an inlet face and an exhaust face, wherein the piston ring is sandwiched between said inlet manifold second face and said outlet manifold first face, and has at least one radially extending cylinder formed therein. The piston ring further includes an inlet passageway formed in the piston ring between the inlet face and the cylinder and in fluid communication with the inlet manifold. The piston ring also has an exhaust passageway formed therein between said cylinder and the exhaust face and in fluid communication with the outlet manifold inlet.Type: GrantFiled: April 30, 2003Date of Patent: July 12, 2005Assignee: Actuant CorporationInventor: Michael B. Bishop
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Patent number: 6913446Abstract: An auxiliary solenoid controlled variable displacement power steering pump, hydraulic systems incorporating same, and method for improving the efficiency of variable displacement power steering pumps. In one embodiment, a rotor is arranged within a pump body, and a cam fitted on an outer periphery of the rotor and movably arranged within the pump body to form a variable volume pump chamber. The cam is biased towards a position within the pump body to create maximum displacement. A mechanism is provided for forcing the cam into a position of fixed minimum or reduced displacement under certain conditions, such as low engine speed and power steering demand. In a preferred embodiment, the mechanism comprises a solenoid driven connecting rod that is operatively connected to the cam. Activation of the solenoid forces the cam to a position of fixed minimum or reduced displacement.Type: GrantFiled: June 11, 2002Date of Patent: July 5, 2005Assignee: Visteon Global Technologies, Inc.Inventors: Steven Thomas Nissen, Brian Stanley Modrzejewski, Shawn Patrick Cap'Ser
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Patent number: 6912839Abstract: An ignition system for a rocket motor includes a soft plastic tube that extends up into the combustion chamber and is coupled to an oxidizer source. Ignition source wires extend through the tube and terminate at a first end at a location which is set back from the end of the tube, and have a second end coupled to an electric power supply. In operation, an oxidizer is introduced into the tube simultaneously with activation of the power supply. The set back portion of the plastic tube becomes fuel for the oxidizer and is consumed, introducing a fire plume into the combustion chamber. The tube introduces additional fuel distinct from the fuel grain or propellant which is in contact with the both the ignition source wires and oxidizer. In addition, the tube will not damage the nozzle as it is being blown of the rocket during the main propulsion phase.Type: GrantFiled: October 11, 2002Date of Patent: July 5, 2005Assignee: Hy-Pat CorporationInventors: Korey R. Kline, Derek Dee Deville