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. 16, 2007
Filed:
Nov. 14, 2002
Mark Kevitt Debe, Stillwater, MN (US);
Larry Allan Schleif, Monticello, MN (US);
Thomas Herdtle, Inver Grove Heights, MN (US);
Andrew James Steinbach, Minneapolis, MN (US);
Mark Kevitt Debe, Stillwater, MN (US);
Larry Allan Schleif, Monticello, MN (US);
Thomas Herdtle, Inver Grove Heights, MN (US);
Andrew James Steinbach, Minneapolis, MN (US);
3M Innovative Properties Company, Saint Paul, MN (US);
Abstract
A fuel cell stack is provided comprising fuel cell modules least compression plates; and at least one plurality of mechanical linkages connecting a pair of compression plates located on either side of at least one fuel cell module, which may be engaged to maintain a predetermined gap distance between the pair of compression plates. The present invention additionally provides a fuel cell stack comprising: fuel cell modules stacked alternately with compression plates; mechanical linkages connecting a first pair of compression plates directly adjacent to a first fuel cell module; mechanical linkages connecting a second pair of compression plates directly adjacent to a second fuel cell module; where a) the first and second fuel cell modules may be maintained under compression, and b) the compression on each fuel cell module may be adjusted essentially independently of the compression on the other.