Resealable vent for plastic battery case

Details Resealable vent for plastic battery case Resealable vent for plastic battery case

1975-05-30

1976-09-14

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

Elastic, resilient or spring biasing valve means

429 55, 429 82, H01M 202, H01M 212

Patent

active

039805000

ABSTRACT:
A resealable vent for a secondary cell having a flat plastic case including a resilient ball seated in an apertured passage with a predetermined amount of compression and adapted to unblock an opening in the passage and vent gaseous material upon an excessive build-up of internal pressure within the cell case, for example, during recharging at an accelerated rate.

REFERENCES:
patent: 3648337 (1972-03-01), Greskamp
patent: 3660169 (1972-05-01), Clune
patent: 3661650 (1972-05-01), Flyn
patent: 3887394 (1975-06-01), Kaye

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