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:
Jul. 12, 2016
Filed:
Sep. 18, 2014
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Ronald M. Tkac, Brighton, MI (US);
Edward R. Romblom, Dewitt, MI (US);
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 3/04 (2006.01); B22C 9/10 (2006.01); F16C 3/08 (2006.01);
U.S. Cl.
CPC ...
F16C 3/08 (2013.01); B22C 9/10 (2013.01); F16C 2220/02 (2013.01);
Abstract
A core structure for a cast crankshaft is provided which eliminates the need to machine and install plugs in one or more of the main bearing lightening holes. This is achieved by configuring the core structure to take out all but a thin wall of material in the center of the main bearing journals.