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Rotary expansible chamber devices March listing by industry category 03/10

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.
  
03/25/2010 > patent applications in patent subcategories. listing by industry category

20100074784 - Scroll compressor: A scroll compressor (CP) in which the cylinder oil circulation rate of lubricant is optimized during the operation to improve the compression efficiency is provided. In the scroll compressor (CP) having a stepped shape, the cylinder oil circulation rate of lubricant taken into the scroll compressor (CP) and circulated together... Agent: Birch Stewart Kolasch & Birch

20100074785 - Compressor: A compressor includes a screw rotor and a gate rotor arranged to form a compression chamber. The screw rotor has an outer circumferential surface with at least one groove portion. The gate rotor has a plurality of tooth portions. Preferably, a first plane contains the screw rotor center axis, a... Agent: GlobalIPCounselors, LLP

20100074786 - Indexed positive displacement rotary motion device: An indexing system for a rotor assembly where the indexing system can regulate the rotational location of drive rotors that are configured to rotate about a shaft in one form.... Agent: Hughes Law Firm, PLLC

  
03/18/2010 > patent applications in patent subcategories. listing by industry category

20100068086 - Scroll fluid machine: Provided is a scroll fluid machine that, by using a crankshaft manufactured by cold forging and a needle bearing, can sufficiently exhibit the performance of a variable circling radius mechanism, can provide a sufficient reliability on a bearing portion of the crankshaft, and can be manufactured inexpensively. For this purpose,... Agent: Westerman, Hattori, Daniels & Adrian, LLP

  
03/11/2010 > patent applications in patent subcategories. listing by industry category

20100061871 - Compressor slider, slider preform, scroll part, and compressor: A compressor slider has a carbon content of 2.0 wt % to 2.7 wt %, a silicon content of 1.0 wt % to 3.0 wt %, a balance of iron that includes unavoidable impurities, graphite that is smaller than the flake graphite of flake graphite cast iron, and a hardness... Agent: GlobalIPCounselors, LLP

20100061872 - Gear pump: A gear pump includes a drive shaft, a rotatable pump element mounted on the drive shaft, a side wall member disposed on one side of the pump element, and formed with a shaft hole through which the drive shaft extends, and a side plate disposed on the other side of... Agent: Crowell & Moring LLP Intellectual Property Group

20100061873 - Bi-directional converter between pressure and rotational force: A bi-directional converter between pressure and rotational force includes engaging rotation members that continue to rotate while being adjacent to each other without collision; the rotation members and an outer wall form an enclosed space; rotation shafts of the rotation members are mutually engaged by gear wheels; the rotation members... Agent: Rabin & Berdo, PC

  
03/04/2010 > patent applications in patent subcategories. listing by industry category

20100054976 - Eccentric screw pump: The present invention relates to an eccentric screw pump (1) comprising an eccentric screw (5) and an elastic element (4) surrounding the latter as well as a drive device, wherein the eccentric screw (5) or the elastic element (4) surrounding the latter comprises a magnetic/magnetisable part (8) so that force... Agent: Rader, Fishman & Grauer PLLC

20100054977 - Variable displacement pump: A variable displacement pump includes a pump body defining first and second pools for introducing fuel/lubricant oil, and internal and external rotary members rotatably mounted on the pump body and cooperatively defining a space such that, during counterclockwise revolution, the fuel/lubricant oil is taken up from the first pool by... Agent: Vedder Price P.C.

20100054978 - Injectible two-stage compression rotary compressor: An injectable two-stage compression rotary compressor includes a compressor housing; a low-stage compressing section provided in the compressor house; a high-stage compressing section provided near the low-stage compressing section; a motor for driving the low-stage compressing section and the high-stage compressing section; an accumulator held at an outer side portion... Agent: Mcdermott Will & Emery LLP

20100054979 - Positive-displacement machine design (variants): In the first variant, the device comprises a stator and a rotor eccentrically mounted in the stator. A planetary train consists of large and small gear wheels. The large gear wheel is fixedly arranged on the outside of the small gear wheel and it is enabled to run around the... Agent: The Nath Law Group

20100054980 - Rotor and compressor element provided with such rotor: Rotor comprising a shaft (6) having an axial direction (A-A′), whereby an inner and central cooling channel (8) with an inlet (9) and an outlet (10) for a cooling agent is provided in this shaft (6), extending in the above-mentioned axial direction (A-A′), characterised in that the above-mentioned cooling channel... Agent: Bacon & Thomas, PLLC

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