The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7425121 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 16, 2008

Filed:

Mar. 23, 2005
Applicants:

Gregory P. Wood, Vacaville, CA (US);

Phillip V. Cortez, Concord, CA (US);

Michael A. Citro, Oakley, CA (US);

Inventors:

Gregory P. Wood, Vacaville, CA (US);

Phillip V. Cortez, Concord, CA (US);

Michael A. Citro, Oakley, CA (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03C 2/00 (2006.01); F04C 18/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A pump assembly () having a pump housing (and) and a rotor () rotatingly disposed within the housing, the rotor having a plurality of slots (). The pump assembly includes a plurality of vanes (), each vane moveably disposed in one of the plurality of slots, and an input shaft () coupled to the rotor for applying a torque to the rotor. The pump assembly () also includes a prime mover () for generating a torque and a magnetic coupling unit () for magnetically transferring the torque generated by the prime mover to the input shaft. The vanes may have a leg () which extends radially inward from a blade (). The rotor and input shaft may be integrally formed.


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