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. 29, 2011
Filed:
Apr. 13, 2004
Applicants:
Albert Hammerschmidt, Erlangen, DE;
Herbert Hartnack, Erlangen, DE;
Arno Mattejat, Erlangen, DE;
Igor Mehltretter, Buckenhof, DE;
Inventors:
Albert Hammerschmidt, Erlangen, DE;
Herbert Hartnack, Erlangen, DE;
Arno Mattejat, Erlangen, DE;
Igor Mehltretter, Buckenhof, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a contact device which is arranged in a terminal compartment of a fuel cell stack and is used to electrically contact the fuel cell stack. According to the invention, the surface of said contact device is at least partially provided with a hydrophobic surface layer, facilitating the removal of water, e.g., condensation water, from the terminal compartment and thus from the fuel cell stack.