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:
Mar. 20, 2012
Filed:
Dec. 18, 2008
Weishun NI, Rockton, IL (US);
Steven A. Heitz, Rockford, IL (US);
Joseph Wetch, Roscoe, IL (US);
Christian L. Griffiths, Belvidere, IL (US);
Weishun Ni, Rockton, IL (US);
Steven A. Heitz, Rockford, IL (US);
Joseph Wetch, Roscoe, IL (US);
Christian L. Griffiths, Belvidere, IL (US);
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Abstract
A gear pump comprises a drive gear being mounted for rotation about a first axis and having a plurality of gear teeth at a radially outer location. A driven gear is mounted for rotation about a second axis, and having a plurality of teeth at a radially outer location. The drive gear teeth engage the driven gear teeth at a contact face to cause the driven gear to rotate. Slots are formed in the contact face of one of the drive and driven gear teeth.