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:
Dec. 08, 2020
Filed:
Jun. 17, 2019
Applicant:
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Inventors:
Zachary Allen Ray Le Duc, Rockford, IL (US);
David Wakefield, Loves Park, IL (US);
Toby Chris Whitehead, Winnebago, IL (US);
Assignee:
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Primary Examiner:
Int. Cl.
CPC ...
F01C 21/02 (2006.01); F16C 17/04 (2006.01); F16C 33/10 (2006.01);
U.S. Cl.
CPC ...
F01C 21/02 (2013.01); F16C 17/04 (2013.01); F16C 33/106 (2013.01); F04C 2240/50 (2013.01); F16C 2360/00 (2013.01);
Abstract
A pump bearing including a top face, a side face peripherally surrounding the top face, a bottom face opposed to the top face, a first bearing bore projecting from the top face to the bottom face, an edge defined where the top face meets the side face, and an asymmetric pressure balance groove defined within a portion of the edge of the top face and the side face defining first depth from the top face.