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:
Sep. 06, 2011
Filed:
Dec. 15, 2006
Mark K. Debe, Stillwater, MN (US);
Andrew J. L. Steinbach, Minneapolis, MN (US);
Jimmy M. Le, Saint Paul, MN (US);
Stephan J. Obradovich, Menomonie, WI (US);
Eric J. Iverson, Eau Claire, WI (US);
Mark K. Debe, Stillwater, MN (US);
Andrew J. L. Steinbach, Minneapolis, MN (US);
Jimmy M. Le, Saint Paul, MN (US);
Stephan J. Obradovich, Menomonie, WI (US);
Eric J. Iverson, Eau Claire, WI (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Fabrication methods for making a gas diffusion layer incorporating a gasket (GIG) fuel cell subassemblies via roll-to-roll processes are described. A material processable by one or both of heat and pressure having spaced apart apertures is transported to a bonding station. A first gasket layer having gas diffusion layers arranged in relation to spaced apart apertures of a first gasket layer is transported to the bonding station. The heat/pressure processable material is aligned with the first gasket layer and the gas diffusion layers. At the bonding station, the heat/pressure processable material is bonded to the first gasket layer and the gas diffusion layers. After bonding, the heat/pressure processable material forms a second gasket layer that attaches the gas diffusion layers to the first gasket layer.