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

Mirrored serpentine flow channels for fuel cell

Patent 6099984 Issued on August 8, 2000. Estimated Expiration Date: Icon_subject January 30, 2018. 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

Fuel cell fluid flow field plate
Patent #: 5108849
Issued on: 04/28/1992
Inventor: Watkins, et al.

Laminated fluid flow field assembly for electrochemical fuel cells
Patent #: 5300370
Issued on: 04/05/1994
Inventor: Washington, et al.

Edge manifold assembly for an electrochemical fuel cell stack
Patent #: 5514487
Issued on: 05/07/1996
Inventor: Washington, et al.

Flow field plate for use in a proton exchange membrane fuel cell
Patent #: 5686199
Issued on: 11/11/1997
Inventor: Cavalca, et al.

Brazed bipolar plates for PEM fuel cells
Patent #: 5776624
Issued on: 07/07/1998
Inventor: Neutzler

Fluid flow plate for decreased density of fuel cell assembly Patent #: 5981098
Issued on: 11/09/1999
Inventor: Vitale

Inventor

Assignee

Application

No. 016127 filed on 01/30/1998

US Classes:

429/39, And fluid directing means429/30Solid electrolyte

Examiners

Primary: Kalafut, Stephen
Assistant: Crepeau, Jonathan

Attorney, Agent or Firm

Foreign Patent References

  • WO 96/12316 WO. 04/13/1996

International Classes

H01M 008/04
H01M 008/02

Abstract

A PEM fuel cell having serpentine flow field channels wherein the input/inlet legs of each channel border the input/inlet legs of the next adjacent channels in the same flow field, and the output/exit legs of each channel border the output/exit legs of the next adjacent channels in the same flow field. The serpentine fuel flow channels may be longer, and may contain more medial legs, than the serpentine oxidant flow channels.

Other References

  • Chilton's Product Design & Development, Jun. 199
PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
 
Sign InRegister
Username  
Password   
forgot password?