Resealable vent valve for a rechargeable battery

Details Resealable vent valve for a rechargeable battery Resealable vent valve for a rechargeable battery

1984-12-05

1985-12-03

LeFevour, Charles F.

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

Elastic, resilient or spring biasing valve means

429 82, H01M 212

Patent

active

045566127

ABSTRACT:
A pressure relief valve is provided for venting gas from the interior of an electrochemical cell when the pressure of the gas within the cell is excessive. The valve effects sealing or the interior of the cell from the atmosphere when the pressure in the cell is not excessive. Within the relief valve first and second seals are disposed in series in a fluid path and serve not only to enhance the sealing function but also cooperate with resilient means to avoid substantial variations in valve opening pressure if the resilient means are misaligned during assembly of the valve.

REFERENCES:
patent: 3293081 (1966-12-01), Daley
patent: 3484301 (1969-12-01), Gray
patent: 3664878 (1972-05-01), Amthor
patent: 4131722 (1978-12-01), Sugalski
patent: 4271241 (1981-06-01), Hooke et al.
patent: 4298662 (1981-11-01), Sugalski et al.
patent: 4322484 (1982-03-01), Sugalski

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