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

Fuel cell and sealing parts therefore

Patent 5789094 Issued on August 4, 1998. Estimated Expiration Date: Icon_subject December 9, 2016. 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

3575719

Fuel cell
Patent #: 4943495
Issued on: 07/24/1990
Inventor: Okada, et al.

Corrosion free phosphoric acid fuel cell
Patent #: 4978591
Issued on: 12/18/1990
Inventor: Wright

Integral edge seals for phosphoric acid fuel cells Patent #: 5096786
Issued on: 03/17/1992
Inventor: Granata, Jr., et al.

Inventors

Assignee

Application

No. 762394 filed on 12/09/1996

US Classes:

429/39, And fluid directing means429/35, Having sealing feature429/38Having support or spacers with fluid distribution means

Examiners

Primary: Maples, John S.

Attorney, Agent or Firm

Foreign Patent References

  • 5-190187 JP. 07/12/1993
  • WO92/02057 WO. 02/12/1992

International Class

H01M 002/08

Foreign Application Priority Data

1994-01-27 JP

Abstract

A bipolar plate is designed to provide a gas seal 16 around an electrode and gas seals 17a around fuel gas manifolds on the same plane and to separate the gas seal 16 and gas seals 17a around oxidant gas manifolds 4, 6 with hollowed parts on an anode electrode 25 side, and to provide the gas seal 16 and the gas seals 17b on a same plane and to separate the gas seal 16 and the gas seals 17a with hollowed parts on a cathode electrode 20 side. Also disclosed are sealing parts for the fuel side and the oxidant side of the fuel cell.

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?