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:
Dec. 15, 1992
Filed:
Dec. 10, 1990
Applicant:
Inventors:
Kevin Dean, Pontiac, MI (US);
Arthur Holland, Troy, MI (US);
Herbert C Ovshinsky, Oak Park, MI (US);
Michael Fetcenko, Rochester Hills, MI (US);
Srinivasan Venkatesan, Southfield, MI (US);
Subnash Dhar, Rochester Hills, MI (US);
Assignee:
Ovonic Battery Company, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429 54 ; 429 53 ; 429 57 ;
Abstract
A resealable, ventable hydrogen impermeable cover assembly for sealing a rechargeable, metal hydride hydrogen storage alloy electrochemical cell. The cover assembly includes, inter alia, a multilayered vent septum comprising at least one layer of a substantially hydrogen impermeable, highly compressible material and at least one layer of a high durometer hardness material exhibiting low pressure hysteresis.