Resealable safety vent and a sealed alkaline rechargeable batter

Details Resealable safety vent and a sealed alkaline rechargeable batter Resealable safety vent and a sealed alkaline rechargeable batter

1995-07-13

1996-09-10

Le, Hoa Van

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

429 54, H01M 212

Patent

active

055544550

ABSTRACT:
A safety vent body having a passage at the center of the bottom surrounded by a circular protrusion, a safety vent cover having a vent hole bonded to the safety vent body, and an elastic valve component consisting of valve seat and rubber pad bonded together into a one-piece structure and a coil spring, housed in a space provided by the safety vent body and the safety vent cover. A plastic container sealed alkaline rechargeable battery realizes a longer cycle life and high reliability by incorporating a resealable safety vent in accordance with the present invention.

REFERENCES:
patent: 3436273 (1969-04-01), Gratzmuller
patent: 4078121 (1978-03-01), Gratzmuller
patent: 5258242 (1993-11-01), Dean et al.
patent: 5407760 (1995-04-01), Kasner et al.

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