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Rotary expansible chamber devices January recently filed with US Patent Office 01/11

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.
01/27/2011 > patent applications in patent subcategories.

20110020160 - Processing cavity pump and an associated pump device: A progressing cavity pump comprises a stator having an inlet end for coupling to a fluid-receiving casing, the pump including an anchor element suitable for fastening the inlet end of the stator on a stationary support, and said inlet end and said anchor element including locking means for locking them... Agent: Frost Brown Todd, LLC

20110020161 - Displacement type compressor having a self-start synchronous motor and start load reducing means: In order to make a displacement type compressor be able to reliably start without increasing an outside diameter dimension of the compressor while using a self-start synchronous motor having high energy efficiency, the displacement type compressor according to the invention includes the self-start synchronous motor which starts as an induction-motor... Agent: Crowell & Moring LLP Intellectual Property Group

20110020162 - Screw rotor: A screw rotor is for use in a screw pump that pumps fluid by rotation of a pair of screw rotors engaged with each other in a rotor housing. The screw rotor includes a multiple-thread portion for pump suction side and a single-thread portion for pump discharge side. The screw... Agent: Greenblum & Bernstein, P.L.C

01/20/2011 > patent applications in patent subcategories.

20110014077 - Method for cooling a liquid-injected compressor element and liquid-inject compressor element for applying such a method: Method for cooling a liquid-injected compressor element, whereby a liquid is injected in the compression chamber of this compressor element (2) via an injection valve (13), said method comprising the step of adjusting the quantity of liquid which is injected in the compression chamber of this compressor element (2) as... Agent: Bacon & Thomas, PLLC

20110014078 - Oil pump: An oil pump includes: an inner rotor rotatable with a drive shaft in a unified manner on a drive-rotation axis; an outer rotor which has inner teeth configured to engage with outer teeth of the inner rotor and is rotatable about a driven axis eccentric to the drive-rotation axis; and... Agent: Buchanan, Ingersoll & Rooney PC

20110014079 - Fluid injected screw compressor element: Fluid-injected screw-type compressor element comprising two co-operating rotors (2 and 3) which are radially and axially bearing-mounted in a housing (1), whereby this housing confines a rotor chamber (4) in which the rotors (2 and 3) are situated and in which a fluid circuit (11) for the injection of a... Agent: Bacon & Thomas, PLLC

20110014080 - Gear type performance oil pump: A high performance gear type oil pump for an internal combustion engine which has drive and driven gears which are, on one common side of the gears, respectively supported from the housing by a drive shaft and an idler shaft. In order to avoid cantilevering of the gears when generating... Agent: Perley-robertson, Hill & Mcdougall LLP

01/13/2011 > patent applications in patent subcategories.

20110008197 - Inverter type scroll compressor: The present invention relates to an inverter type scroll compressor and comprises a housing, a fixed scroll which is set up inside the housing, an orbiting scroll which orbits around the fixed scroll, a driving unit which turns the orbiting scroll, an intake port and a discharge port which are... Agent: Ballard Spahr LLP

01/06/2011 > patent applications in patent subcategories.

20110002803 - Expander: An expander includes a cylinder at which an inflow port and an outflow port are formed, a piston eccentrically disposed in the cylinder relative to a rotational shaft to form a fluid chamber between the piston and the cylinder, and a blade dividing the fluid chamber into a high pressure... Agent: GlobalIPCounselors, LLP

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