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:
Nov. 02, 2010
Filed:
Jan. 30, 2008
Mark W. Keyser, Bloomfield, NY (US);
Jeffrey A. Rock, Fairport, NY (US);
Keith E. Newman, Pittsford, NY (US);
Lewis Dipietro, West Henrietta, NY (US);
Scott Ofslager, Albion, NY (US);
Steven J. Spencer, Rochester, NY (US);
Mark W. Keyser, Bloomfield, NY (US);
Jeffrey A. Rock, Fairport, NY (US);
Keith E. Newman, Pittsford, NY (US);
Lewis Dipietro, West Henrietta, NY (US);
Scott Ofslager, Albion, NY (US);
Steven J. Spencer, Rochester, NY (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A method for preparing a bipolar plate assembly for a fuel cell stack is provided. The method first includes the steps of providing a first unipolar plate having a first active area with a plurality of channels formed on a first inner surface thereof, and a second unipolar plate having a second active area with a plurality of lands formed on a second inner surface thereof. The first unipolar plate and the second unipolar plate are aligned to dispose the first active area adjacent the second active area. A first pressure is then applied to the first and second active areas to pre-nest the first active area and the second active area. The perimeters of the first and second unipolar plates are then joined. A clamping fixture and associated method for assembling the bipolar plate assembly is also provided.