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:
Jan. 04, 2011
Filed:
Jan. 12, 2007
Jon P. Owejan, Honeoye, NY (US);
Steven R. Falta, Honeoye Falls, NY (US);
Pinkhas A. Rapaport, Fairport, NY (US);
Thomas A. Trabold, Pittsford, NY (US);
Thomas W. Tighe, Bloomfield, NY (US);
Lee C. Whitehead, Middleport, NY (US);
Jon P. Owejan, Honeoye, NY (US);
Steven R. Falta, Honeoye Falls, NY (US);
Pinkhas A. Rapaport, Fairport, NY (US);
Thomas A. Trabold, Pittsford, NY (US);
Thomas W. Tighe, Bloomfield, NY (US);
Lee C. Whitehead, Middleport, NY (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A bipolar plate for a fuel cell is disclosed including a first unipolar plate having an active surface with a plurality of flowfield channels formed therein. The first unipolar plate further includes an inlet header disposed at a first end of the unipolar plate that is in communication with the active surface, and an outlet header disposed at a second end of the unipolar plate having an exhaust opening formed therethrough. A peripheral edge of the exhaust opening is chamfered and is also in communication with the active surface. The chamfered exhaust opening forms a water removal channel in the bipolar plate. A fuel cell stack including the bipolar plate is also disclosed.