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:
Mar. 10, 2015
Filed:
Apr. 13, 2012
Applicants:
Annette M. Brenner, Honeoye Falls, NY (US);
Robert E. Evans, Huntington, CT (US);
Inventors:
Annette M. Brenner, Honeoye Falls, NY (US);
Robert E. Evans, Huntington, CT (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/06 (2006.01); H01M 8/04 (2006.01); B01D 63/08 (2006.01); H01M 8/10 (2006.01);
U.S. Cl.
CPC ...
H01M 8/04149 (2013.01); B01D 63/08 (2013.01); H01M 2008/1095 (2013.01); Y02E 60/50 (2013.01);
Abstract
A glass fiber-based paper diffusion medium, as well as a membrane humidifier for a fuel cell and method for humidifying a fuel cell using the provided glass fiber-based paper diffusion medium. The diffusion medium is a flexible, resin-bonded glass fiber paper impregnated with 26-55% cured liquid phenolic resin and having a thickness of 100-110 μm and a Gurley permeability of at least 100 cfm.