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.:
Date of Patent:
Jun. 30, 2015
Filed:
Jul. 23, 2012
Applicants:
Steven A. Heitz, Rockford, IL (US);
Weishun NI, Rockton, IL (US);
Inventors:
Steven A. Heitz, Rockford, IL (US);
Weishun Ni, Rockton, IL (US);
Assignee:
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04C 2/18 (2006.01); F04C 15/06 (2006.01); F04C 2/08 (2006.01);
U.S. Cl.
CPC ...
F04C 2/086 (2013.01); F04C 2/18 (2013.01); F04C 15/06 (2013.01); F04C 2250/101 (2013.01);
Abstract
A gear pump comprises first and second gears and a housing. The housing comprises a first arcuate gear bore that receives the first gear, a second arcuate gear bore that receives the second gear, a discharge port that joins the first and second arcuate gear bores, an inlet port that joins the first and second arcuate gear bores opposite the discharge port; and first and second cutbacks that are joined to the first and second arcuate gear bores, respectively, adjacent the inlet port.