DAVID H EVANS
Accountancy in Hackettstown, NJ

License number
New Jersey 20CS00074000
Issued Date
Jan 1, 1977
Expiration Date
Dec 31, 2017
Category
Accountancy
Type
Public School Accountant
Address
Address
Hackettstown, NJ

Professional information

David Evans Photo 1

Fail Safe Battery

US Patent:
4061842, Dec 6, 1977
Filed:
Nov 26, 1976
Appl. No.:
5/744901
Inventors:
David G. Evans - Hackettstown NJ
Assignee:
The United States of America as represented by the Secretary of the Army - Washington DC
International Classification:
H01M 638
US Classification:
429116
Abstract:
This invention relates to a delay action battery, containing an electrolyte ealed and retained externally to the battery case in order to prevent premature activation due to exposure to excessive heat and or crush forces.