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:
Sep. 15, 2020
Filed:
Dec. 22, 2017
Applicant:
Gkn Sinter Metals, Llc, Auburn Hills, MI (US);
Inventors:
Douglas R. O'Hara, Salem, IN (US);
James T. Hill, Salem, IN (US);
Assignee:
GKN Sinter Metals, LLC, Auburn Hills, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 1/34 (2006.01); B22F 3/24 (2006.01); B22F 5/08 (2006.01); B22F 5/10 (2006.01); F01L 1/344 (2006.01);
U.S. Cl.
CPC ...
B22F 3/24 (2013.01); B22F 5/08 (2013.01); B22F 5/10 (2013.01); F01L 1/3442 (2013.01); B22F 2003/247 (2013.01); B22F 2998/10 (2013.01); F01L 2301/00 (2020.05); F01L 2303/00 (2020.05);
Abstract
A rotor for a variable valve timing engine is disclosed in which the opposing planar surface(s) of the rotor have one or more recesses formed therein in order to balance, equilibrate, or equalize the planar surface areas on the opposing surfaces. Among other things, this can improve the accuracy and efficiency with which the rotor is ground during a related method of manufacturing the rotor.