Releasable pressure vents

Details Releasable pressure vents Releasable pressure vents

1989-12-05

1990-10-23

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

Elastic, resilient or spring biasing valve means

H01M 212

Patent

active

049651447

ABSTRACT:
A resealable pressure vent for a container such as a battery container having a wall containing an aperture connecting the interior of the container with the atmosphere comprising a cover member in the form of a metal plate which is spot welded at its center to the center of the wall of the container. The aperture is located in the wall away from the center thereof and an elastic O-ring is interposed between the metal plate and container wall such that the O-ring seals the aperture from the exterior of the container. In the event of excess pressure within the container, the O-ring is displaced by the said excess pressure to vent the container and the O-ring returns to its original sealing position when the excess pressure is relieved.

REFERENCES:
patent: 2307768 (1943-01-01), Deibel
patent: 3293081 (1966-12-01), Daley
patent: 3556863 (1971-01-01), Nathe
patent: 3579387 (1971-05-01), Voyentzie et al.
patent: 3622397 (1971-11-01), Belove

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