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:
Apr. 30, 2013
Filed:
Dec. 21, 2006
John N. Owens, Franklin, MI (US);
Hamid G. Kia, Bloomfield Hills, MI (US);
John N. Owens, Franklin, MI (US);
Hamid G. Kia, Bloomfield Hills, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A process for molding a composite unipolar plate for a fuel cell stack that increases the strength of a header region of the plate. High strength, non-conductive prepeg inserts are positioned within the mold that are shaped to the configuration of the header region, including the openings that define the various inlet and outlet manifolds. A bulk molding compound charge is positioned in the mold and pressed under high heat so that the bulk molding compound disperses in the mold, and covers the prepeg inserts so that the prepeg inserts are cured to the bulk molding compound.