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. 24, 2013
Filed:
Feb. 23, 2009
Michael J. Walker, Windsor, CA;
Thomas C. Pederson, Rochester Hills, MN (US);
Jason R. Traub, Chesterfield, MI (US);
Anil K. Sachdev, Rochester Hills, MI (US);
Michael J. Walker, Windsor, CA;
Thomas C. Pederson, Rochester Hills, MN (US);
Jason R. Traub, Chesterfield, MI (US);
Anil K. Sachdev, Rochester Hills, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
An exemplary method for forming a sand core includes forming a core insert; forming a sand core precursor around the core insert; and creating at least one passage within the sand core precursor by removing or otherwise transforming a portion of the core insert, wherein the at least one passage includes at least one exit point. The sand core may then be utilized in a casting mold assembly to form a cast part.