Pressure relief flapper vent valve for galvanic cells

Details Pressure relief flapper vent valve for galvanic cells Pressure relief flapper vent valve for galvanic cells

1976-03-29

1977-10-04

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

429171, H01M 212

Patent

active

040525333

ABSTRACT:
A galvanic dry cell having a resealable subseal comprising a cup-shaped flapper vent valve having an opening at its center for receiving and contacting the cell's current collector rod and a peripheral edge segment contacting and conforming to the inner wall of the cell's container and adapted for deflecting upwardly thereby providing a resealable vent path at the valve-container interface.

REFERENCES:
patent: 1650319 (1927-11-01), Briggs
patent: 3278340 (1966-10-01), Bell
patent: 3573106 (1971-03-01), Johnson et al.

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