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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. 11/13/2014 > 3 patent applications in 3 patent subcategories.
20140334958 - Continuously variable transmission provided with a gerotor pump: A continuously variable transmission (CVT) provided with an integrated gerotor pump that also acts as a rotation blocker is described herein. In one illustrated embodiment, the gerotor pump is used to pump lubrication and cooling fluid through a radiator and into the hollow shaft of the CVT.... Agent: Transmission Cvt Corp Inc.
20140334959 - Supercharger torsional compliance and damping features: A positive displacement pump (8) comprises a cylindrical input shaft (13) comprising a first area (A1) with a first diameter (D1), a second area (A2) with a second diameter (D2), and a third area (A3) with a third diameter (D3), where the second diameter is greater than the first diameter... Agent:
20140334960 - Vacuum pump: The present invention relates to an automotive vacuum pump 10. The vacuum pump 10 has a casing 12 defining a cavity having an inlet 14 and an outlet 16, wherein the cavity contains a rotor 18 and a vane slidably mounted to the rotor 18. The rotor 18 extends through... Agent: Wabco Automotive Uk Limited11/06/2014 > 1 patent applications in 1 patent subcategories.
20140328709 - Hydraulic machine with vane retaining mechanism: A hydraulic pump or motor includes a body having a chamber and a rotor rotatably mounted within the chamber. The chamber and rotor are shaped to define one or more rise regions, fall regions, major dwell regions and minor dwell regions between walls of the chamber and the rotor. The... Agent:10/30/2014 > 7 patent applications in 6 patent subcategories.
20140322055 - Scroll vacuum pump and method of maintenance including replacing a tip seal of a scroll vacuum pump: A scroll pump has a tip seal between an axial end of the scroll blade of one of stationary and orbiting plate scrolls of the pump and the plate of the other of the stationary plate and orbiting plate scrolls. The scroll pump may have a ballast gas supply system... Agent:
20140322056 - Vacuum pump having expansion chamber and method of achieving ultimate pressure state in a vacuum pump using an expansion chamber: A vacuum pump and a method of controlling the operation of the vacuum pump employ an expansion chamber to reduce a pressure differential between an inlet side and an exhaust side of the pump. In particular, the expansion chamber may be used to rid the pump head of the pump... Agent: Agilent Technologies, Inc.
20140322057 - Rotary compressor: A rotary compressor (100) includes a closed casing (1), a cylinder (15), a piston (28), a lower bearing member (7), a vane (33), a suction port (20), a discharge port (41), and a partition member (10). The partition member (10) is attached to the lower bearing member (7) so as... Agent:
20140322058 - Screw compressor: In order to prevent deterioration in performance of an oil-free screw compressor and scuffing caused by rust, surfaces of both male and female rotors are coated with heat-resistance coatings containing a solid lubricant. A coating contains Polyimide resin to which Molybdenum disulfide, as a solid lubricant, and Aluminium oxide and... Agent:
20140322059 - Fluid machine: The present disclosure relates to fluid machines, especially compressors, more especially screw compressors. More particularly the present disclosure describes a fluid machine comprising at least one rotor (64), the rotor including a rotor drive shaft (68) extending from the rotor, a housing in which is mounted the rotor, and at... Agent: Howden Compressors Limited
20140322060 - Fluid-pressure apparatus: A pair of meshed gears is disposed in a hydraulic chamber of a housing. Bushes in the chamber contact both end surfaces of the gears. Edge surfaces of the gears are chamfered at intermediate parts between tooth tips and tooth bottoms, and the inclination of the intermediate parts is larger... Agent: Sumitomo Precision Products Co., Ltd.
20140322061 - Check valve for an engine vacuum pump: A rotary vane pump includes a housing that encloses an air chamber. An intake aperture extends to the air chamber. A check valve couples with the intake aperture and includes a stop having first and second sides. A helical spring engages the first side and biases the second side against... Agent: Ford Global Technologies, LLC10/23/2014 > 3 patent applications in 2 patent subcategories.
20140314606 - Refrigerant compressor: A refrigerant compressor configured to compress ethylene fluorohydrocarbon or a mixture containing the ethylene fluorohydrocarbon as a refrigerant, the refrigerant compressor including: a compression element configured to compress the refrigerant and including a sliding component that constitutes a sliding portion; and refrigerator oil configured to be supplied to the sliding... Agent: Mitsubishi Electric Corporation
20140314607 - Refrigerant compressor: A refrigerant compressor configured to compress ethylene fluorohydrocarbon or a mixture containing the ethylene fluorohydrocarbon as a refrigerant, the refrigerant compressor including: a compression element configured to compress the refrigerant and including a sliding component that constitutes a sliding portion; and refrigerator oil configured to be supplied to the sliding... Agent: Mitsubishi Electric Corporation
20140314608 - Internal-gear-type oil pump for vehicle: A vehicular internal-gear-type oil pump provided with (a) a circular pump chamber defined by a pump body and a pump cover, (b) an annular driven gear which has internal teeth, and an outer circumferential surface opposed to an inner circumferential surface defining said pump chamber, and which is rotatably supported... Agent: Toyota Jidosha Kabushiki KaishaPrevious industry: Pumps
Next industry: Powder metallurgy processes
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