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Rotary expansible chamber devicesBelow 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. 05/09/2013 > 4 patent applications in 4 patent subcategories.
20130115121 - Vane compressor: Disclosed is a vane compressor in which cylinders concentrically formed at the side of a rotor are eccentrically inserted in ring-shaped spaces between cylindrical parts concentrically formed at the side of a stator. A pair of radially extending vane attachment grooves is formed in the rotor, and vanes are slidably... Agent: Kashiyama Industries, Ltd
20130115122 - Rotary compressor: A rotary compressor having an improved supporting structure and a smaller size thereof, reducing the vibration and noise and providing various fields of application other than an air conditioner, the rotary compressor provided with a compression part and a driving part and including a first case forming an external appearance... Agent: Samsung Electronics Co., Ltd.
20130115123 - Scroll compressor: A scroll compressor may include a blocking portion provided in a fixed component thereof, and positioned adjacent to a discharge hole formed in an orbiting scroll of the compressor. The blocking portion may temporarily obscure the discharge hole upon initiation of a discharging operation, thereby preventing refrigerant discharged into a... Agent:
20130115124 - Internal gear pump: An internal gear pump in which an inner rotor and an outer rotor are arranged in a rotor housing chamber. A deepest meshing section is located in the vicinity on a line connecting a center of the inner rotor and a center of the outer rotor. A center of the... Agent: Yamada Manufacturing Co., Ltd.05/02/2013 > 7 patent applications in 6 patent subcategories.
20130108495 - High pressure seal vent: A compressor for compressing refrigerant in a refrigerant circuit includes a housing defining a compression chamber. A screw rotor is mounted within the housing and configured to form a pocket of high pressure refrigerant and a pocket of low pressure refrigerant within the compression chamber. The screw rotor has a... Agent: Trane International Inc.
20130108494 - Metering gear pump with integral flow indicator: A gear pump includes a driven gear and an idler gear each mounted for rotation in a housing. The driven gear and the idler gear include respective gear teeth in a meshing relationship and forming an inlet space and an outlet space in the housing and adjacent to the meshing... Agent: Nordson Corporation
20130108496 - Scroll compressor: A scroll compressor employs therein a refrigerant having a small global warming potential and a small ozone depletion potential and mainly comprising hydrofluoroolefin having a carbon-carbon double bond. A stationary scroll has and end plate and a discharge port defined in the end plate at a central portion thereof so... Agent: Panasonic Corporation
20130108497 - Device for damping sloshing of oil for a screw-type compressor: A screw-type compressor, in particular for use in a vehicle, wherein the screw-type compressor has an oil sump with a device for damping sloshing of oil. A screw-type compressor is made available in which the device for damping sloshing of oil is improved compared to the prior art. The device... Agent: Knorr-bremse Systeme Fur Schienenfahrzeuge Gmbh
20130108498 - Vane cell machine: The invention concerns a vane cell machine with a stator and a rotor having radially displaceable vanes arranged in guides, said vanes bearing on an inside of the stator and bordering, together with the rotor, the stator and a side wall, work chambers at each axial end of the rotor.... Agent: Danfoss A/s
20130108499 - Vane cell machine: The invention concerns a vane cell machine having a stator and a rotor that is made of a first material, the rotor having guides comprising radially displaceable vanes that rest on an inside of the stator and border work chambers at each axial end of the rotor together with the... Agent: Danfoss A/s
20130108500 - Rebuildable cassette assembly for displacement pump: A radial pump has a housing with a cylinder ring pivotally mounted therein. The cylinder ring has a circular aperture within which a cam surface is formed. A cylinder block rotates within the cylinder ring aperture and has a plurality of radially extending cylinders each having port which selectively communicates... Agent:04/25/2013 > 1 patent applications in 1 patent subcategories.
20130101454 - Rotary compressor: In a rotary compressor of a vane rotary type, an outer peripheral surface of an eccentric portion of a shaft on a side adjacent to a center of the shaft is located radially inwardly of an outer peripheral surface of a main shaft inserted in a main bearing and that... Agent: Panasonic Corporation04/18/2013 > 4 patent applications in 4 patent subcategories.
20130094985 - Rotary piston pump and method for operating a rotary piston pump: A rotary piston pump equipped with a motor having two counter-rotating rotary pistons. The two rotary pistons are housed in an oval pump housing. The two rotary pistons are arranged on a first output shaft and a second output shaft. The first output shaft and the second output shaft are... Agent:
20130094986 - Hydraulic transmission device allowing relatively quiet coupling: A hydraulic transmission apparatus having at least one declutchable hydraulic motor having radial pistons and connected via two motor ducts, and a casing duct connected to the inside of the casing. The apparatus further has clutching means that, in order to perform the clutching of the motor, are suitable for... Agent:
20130094987 - Motor-driven compressor: A motor-driven compressor includes a compression mechanism. The compression mechanism includes a stationary scroll and a movable scroll. The movable scroll and the stationary scroll form a compression chamber. The motor-driven compressor has an electric motor accommodated in a motor chamber, a suction pressure zone, a discharge pressure zone, and... Agent: Kabushiki Kaisha Toyota Jidoshokki
20130094988 - Gear pump: A gear pump is described with a plurality of gear wheels which intermesh in order to deliver a pumping medium, and are rotatably held in a pump case and deliver a pumping medium from a priming zone into a delivery pressure zone of the pump case. One of the gear... Agent: Oerlikon Textile Gmbh & Co. KgPrevious industry: Pumps
Next industry: Powder metallurgy processes
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