U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Sealing system for fuel cells

Patent 6261711 Issued on July 17, 2001. Estimated Expiration Date: Icon_subject September 14, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Electrochemical cell and separator plate thereof
Patent #: 4169917
Issued on: 10/02/1979
Inventor: Baker ,   et al.

Method of forming densified edge seals for fuel cell components
Patent #: 4269642
Issued on: 05/26/1981
Inventor: DeCasperis ,   et al.

Densified edge seals for fuel cell components
Patent #: 4365008
Issued on: 12/21/1982
Inventor: DeCasperis ,   et al.

Integral gas seal for fuel cell gas distribution assemblies and method of fabrication
Patent #: 4505992
Issued on: 03/19/1985
Inventor: Dettling ,   et al.

Fabrication of gas impervious edge seal for a bipolar gas distribution assembly for use in a fuel cell
Patent #: 4588661
Issued on: 05/13/1986
Inventor: Kaufman ,   et al.

Fuel cell separator plate with bellows-type sealing flanges
Patent #: 4604331
Issued on: 08/05/1986
Inventor: Louis

Manifold seal structure for fuel cell stack
Patent #: 4738905
Issued on: 04/19/1988
Inventor: Collins

Expanded high-temperature stable chemical resistant seal material
Patent #: 4774154
Issued on: 09/27/1988
Inventor: Singelyn ,   et al.

Hydrogen separation and electricity generation using novel three-component membrane
Patent #: 4795536
Issued on: 01/03/1989
Inventor: Young ,   et al.

Hydrogen separation and electricity generation using novel electrolyte membrane
Patent #: 4797185
Issued on: 01/10/1989
Inventor: Polak ,   et al.

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Inventors

Assignee

Application

No. 396158 filed on 09/14/1999

US Classes:

429/34, Housing member, seal, spacer or fluid distributing or directing means429/12, FUEL CELL, SUBCOMBINATION THEREOF OR METHODS OF OPERATING429/13, Process of operating429/17, Generating, regenerating or recycling reactant429/30, Solid electrolyte429/33, Electrolyte composition chemically specified429/35, Having sealing feature429/36Having bonded seal, e.g., welded, adhesive, molded in situ, etc.

Examiners

Primary: Brouillette, Gabrielle
Assistant: Yuan, Dah-Wei

Attorney, Agent or Firm

Foreign Patent References

  • 0041294 EP. 12/13/1981
  • 2000133288 JP. 05/13/2012

International Class

H01M 002/08

Abstract

A fluid seal for a fuel cell includes a compressible member on a first fluid flow plate and a gasket disposed within a groove on a second fluid flow plate. The compressible member conforms to a surface of the gasket to form the fluid seal as the two fluid flow plates are compressed together.

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