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:
May. 21, 2024
Filed:
Apr. 13, 2022
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Liang Wang, Rochester Hills, MI (US);
Qigui Wang, Rochester Hills, MI (US);
Dale A. Gerard, Bloomfield Hills, MI (US);
Steven L. Burkholder, Archbold, OH (US);
Ronald C. Daul, Northville, MI (US);
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22C 3/00 (2006.01); B22C 9/02 (2006.01); B22C 9/06 (2006.01); B22C 9/10 (2006.01); B22D 15/02 (2006.01);
U.S. Cl.
CPC ...
B22D 15/02 (2013.01); B22C 3/00 (2013.01); B22C 9/02 (2013.01); B22C 9/061 (2013.01); B22C 9/101 (2013.01);
Abstract
A low-pressure sand-casting system includes a sand-casting mold receiving a molten casting material to cast an automobile vehicle cylinder head. A port is created in the automobile vehicle cylinder head. A manifold port metal core assembly includes a metal core. A compressible material coating is applied on the manifold port core metal core.