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Rotary expansible chamber devices October categorized by USPTO classification 10/10

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.
10/28/2010 > patent applications in patent subcategories.
10/21/2010 > patent applications in patent subcategories.

20100266433 - Multi-stage dry pump: A multi-stage dry pump includes: a plurality of pump chambers each including a cylinder and a rotor housed in the cylinder; a first rotor shaft that is a rotation shaft of the rotors; a fixed bearing that rotatably supports the first rotor shaft and restricts a movement thereof along an... Agent: Grossman, Tucker, Perreault & Pfleger, PLLC

20100266434 - Flow-controllable cell pump with pivotable control slide valve: A flow-controllable cell pump having a bearing element that may be positioned in a receiving shell of a pump housing such that the receiving shell may assume an operational connection with at least one of a bearing element, a pump chamber positioned between an inner rotor and a control slide... Agent: Rader, Fishman & Grauer PLLC

20100266435 - Gerotor apparatus for a quasi-isothermal brayton cycle engine: According to one embodiment of the invention, a gerotor apparatus includes an outer gerotor having an outer gerotor chamber, an inner gerotor, at least a portion of which is disposed within the outer gerotor chamber, and a synchronizing apparatus operable to control the rotation of the inner gerotor relative to... Agent: Baker Botts L.L.P.

20100266436 - Fuel pump: A fuel pump includes an impeller and a cover. The impeller includes a ring portion, which is annular and is placed radially outward of blades. The cover has an arcuate pump flow passage. An enlarged space is formed in a cover side slide surface of the cover. The enlarged space... Agent: Nixon & Vanderhye, PC

20100266437 - Aircraft main engine fuel pump with multiple gear stages using shared journals: A multistage gear pump assembly includes first and second gear pumps that use common shafts and are axially separated by a spacer plate secured within a common bore and secured to the housing. Pressurized bearings are provided at opposite axial ends of the first and second gear pumps. The second... Agent: Fay Sharpe LLP

- None available for 10/01/2010

- None available for 10/7/2010

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