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Rotary expansible chamber devices November recently filed with US Patent Office 11/11

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.
11/24/2011 > 2 patent applications in 2 patent subcategories.

20110286871 - Scroll compressor: A scroll compressor is provided that can reliably prevent a situation in which a product whose performance is degraded due to misassembly of a tip seal is shipped. In the scroll compressor, tip seals of different lengths are embedded in tip surfaces of a fixed spiral wrap of a fixed... Agent: Mitsubishi Heavy Industries, Ltd.

20110286872 - Metering gear pump or segment, and metering gear pump assembly comprising a plurality of metering gear pumps or segments: A metering pump or segment, and a metering pump assembly comprising a plurality of the metering pumps or segments, are disclosed. The drive shaft assembly for driving the pump gears of each metering pump or segment is coaxially aligned with the longitudinal axis of the pump or segment, as is... Agent: Illinois Tool Works Inc.

11/17/2011 > 2 patent applications in 2 patent subcategories.

20110280757 - Rotary machine of the deformable rhombus type comprising an improved transmission mechanism: A rotary machine with a deformable rhomb includes a rotor formed by a deformable rhomb in contact, with or without clearance, with an internal surface of a housing forming a stator and/or with an external surface of a central crown, the deformable rhomb including four pistons connected one following the... Agent:

20110280758 - Scroll type compressor: Provided is a scroll type compressor which reduces variations in the pressing load of a rotating scroll on a fixed scroll, reduces the impact at the start of the compressor and suppresses noises, and can provide excellent durability. A peripheral elastic body 51 and a bottom-portion elastic body 52, which... Agent: Mitsubishi Heavy Industries, Ltd.

11/10/2011 > 2 patent applications in 1 patent subcategories.

20110274575 - Compressor, in particular a radial piston compressor for carbon dioxide as a refrigerant: A compressor, in particular a radial piston compressor, further in particular a compressor for CO2 as a refrigerant, including a compressor unit for compressing refrigerant and a drive shaft for driving the compressor unit and a motor chamber bounded substantially by a motor housing, wherein the motor chamber has a... Agent: Gea Bock Gmbh

20110274574 - Water injected scroll air compressor: As pressure in a water tank rapidly rises when water inside a compressor is evaporated by the high temperature of compressed air and this situation makes the operation unstable, an object of the present subject matter is to address this problem. A water injected scroll air compressor is provided with:... Agent: Hitachi Industrial Equipment Systems Co., Ltd.

11/03/2011 > 4 patent applications in 4 patent subcategories.

20110268595 - Variable capacity vane pump: In a variable capacity vane pump, a space between adjacent vanes is 1 pitch. A line that connects a half-pitch-advanced position from an end edge of an inlet port or from an end edge of an outlet port and a driving shaft center in a no-load state is termed a... Agent: Hitachi, Ltd.

20110268596 - Fluid device with flexible ring: A fluid device includes a housing defining a fluid inlet and a fluid outlet. A variable displacement assembly is in fluid communication with the fluid inlet and the fluid outlet. The variable displacement assembly includes a rotor assembly, a flexible ring, and a plurality of ring supports. The rotor assembly... Agent: Eaton Corporation

20110268597 - Compressor having capacity modulation assembly: A compressor includes a shell assembly, first and second scroll members and a capacity modulation assembly. The first and second scroll members form a series of pockets. A first modulation port defined in the first scroll member is in communication with a first pocket. The capacity modulation assembly is in... Agent:

20110268598 - Gear pump: A gear pump having double-helical gears with bearing assembly seals and gear end seals which provided double seal interfaces between the pump cavity and bearing cups having disposed therein bearing assemblies for supporting pump shafts for rotation. The double seal interfaces preclude pumped fluid, particularly contaminated fluid including entrained abrasives... Agent:

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