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Rotary expansible chamber devices

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.
12/04/2014 > 7 patent applications in 5 patent subcategories.

20140356207 - An oil-free scroll fluid machine: An oil-free scroll fluid machine includes an inner casing used as or not as a fixed scroll, and an outer casing used as a fixed scroll. The inner casing is butted with the outer casing to form a seal chamber. An orbiting scroll, which is installed on an eccentric part... Agent: Geowell Vacuum Co., Ltd.

20140356208 - Expander: In order to suppress the damage and the degradation in durability of a bearing of an expander, simplify the configuration of the expander, and reduce the manufacturing cost thereof, an expander of the present invention includes an expander rotor that is rotationally driven by an expanding force transmitted from vapor... Agent: Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

20140356211 - Compressor having output adjustment assembly: A compressor includes a housing, a first scroll member, a second scroll member and a valve assembly. The first scroll member is positioned within the housing and includes a first end plate portion and a second end plate portion coupled to the first end plate portion and having a first... Agent:

20140356210 - Scroll compressor: A scroll compressor is provided in which a boss of an orbiting scroll is inserted into and coupled to a boss coupling recess of a crank shaft, so that friction loss of a bearing portion of the crank shaft may be reduced, compression efficiency and reliability of the compressor may... Agent:

20140356209 - Variable speed scroll compressor: A compressor is provided and may include a driveshaft and an orbiting scroll member driven by the driveshaft. The orbiting scroll member may include an end plate, a spiral wrap extending from the end plate, and a chamber formed by the orbiting scroll member and disposed on an opposite side... Agent: Emerson Climate Technologies, Inc.

20140356212 - Transmission fluid pump speed control systems and methods: A transmission fluid pump control system of a vehicle includes a target speed module and a speed control module. The target speed module determines a target speed of an electric transmission fluid pump based on a target output flowrate of the electric transmission fluid pump, a predetermined maximum allowable amount... Agent: Gm Global Technology Operations LLC

20140356213 - Rotary machine: A rotary machine (1) in the form of an expander is shown. The Expander Induces a housing (5) having a cavity (9), inlet and outlet ducts (11, 12) communicating with the cavity (9), a rotor (2) having a rotor axis (A), a number of vanes (15a, 15b, 15c) movably received... Agent:

11/27/2014 > 10 patent applications in 9 patent subcategories.
11/20/2014 > 4 patent applications in 4 patent subcategories.

20140341767 - Rotary vacuum pump: A rotary vacuum pump, for instance a vane pump, has at least one circumferential groove (6) between facing side surfaces of the rotor (2) and of the rotor guide (3) for receiving a lubricating and sealing fluid. The circumferential groove (6) is a partial annular groove, which has an angular... Agent: Vhit S.p.a.

20140341768 - Sealing device: A sealing device includes a relatively dimensionally stable, elongated friction and/or wear element and an elastically-deformable elongated sealing element which rests lenghtwise on the friction and/or wear element. The friction and/or wear element encompasses the sealing element at the ends of the friction and/or wear element.... Agent:

20140341769 - Pump rotor and internal gear pump using the same: A tooth profile of an inner rotor 2 is formed by an envelope of a group of circular arcs of a locus circle C having a center on a trochoidal curve TC. The envelope of the group of circular arcs is formed by rolling a rolling circle having a predetermined... Agent:

20140341770 - Water cooled screw compressor: A water cooled rotary screw compressor system.... Agent:

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 Limited

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