Sealed lead storage battery

Details Sealed lead storage battery Sealed lead storage battery

1986-11-17

1988-05-17

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 59, H01M 212

Patent

active

047450398

ABSTRACT:
A sealed lead storage battery including at least one negative electrode plate capable of absorbing oxygen gas generated from a positive electrode plate during recharging thereof, which battery comprises a battery casing having a breathing hole defined therein in communication with the interior of the battery casing, and a safety valve including a flat rubber plate of synthetic material overlaying the breathing hole in contact with the battery casing and an elastic pad made of open-celled elastic material placed over the flat rubber plate so as to urge the flat rubber plate against the battery casing.

REFERENCES:
patent: 3257237 (1966-06-01), Jache
patent: 3560267 (1971-02-01), Guilliams
patent: 3715239 (1973-02-01), Walker et al.
patent: 3904441 (1975-09-01), Badger

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