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:
Oct. 08, 2019
Filed:
Apr. 06, 2009
Stephen P. Victor, Guilford, CT (US);
Thomas H. Madden, Glastonbury, CT (US);
David A. Niezelski, Manchester, CT (US);
Kristoffer Ridgeway, Simsbury, CT (US);
Stephen P. Victor, Guilford, CT (US);
Thomas H. Madden, Glastonbury, CT (US);
David A. Niezelski, Manchester, CT (US);
Kristoffer Ridgeway, Simsbury, CT (US);
AUDI AG, Ingolstadt, DE;
Abstract
A method of manufacturing a porous structure for a fuel cell is disclosed. The method includes providing the porous structure, and processing the porous structure to selectively produce a non-porous region on the porous structure. In one example, the non-porous region is provided at the perimeter of the porous structure, an edge of an internal manifold and/or a surface or recess that supports a seal or gasket. The non-porous region has a porosity that is less than the porosity of the porous structure. The non-porous region prevents undesired leakage of fluid from the porous structure and prevents migration of adhesive associated with the seals.