Container pressure release vent

Details Container pressure release vent Container pressure release vent

1990-05-04

1991-08-27

Pollard, Steven M.

Receptacles

Container attachment or adjunct

Pressure relief means

220207, 222397, 429 56, 429 82, F16K 1740

Patent

active

050426753

ABSTRACT:
This invention pertains to a novel pressure relief device for a container which is under pressure or becomes pressurized. In one aspect, the invention is directed to a pressure relief vent for a battery which, due to adverse chemical reaction, may become pressurized to a hazardous level. A pressure release vent for a container comprising: (a) a container having a wall; (b) an indentation formed in said wall, the indentation being interrupted by a flat-topped fold which extends across the indentation and reduces the depth of the indentation at a specific location; and (c) a score formed in said fold, the score providing a point of weakness whereby excessive pressure buildup in the container ruptures the container wall at the score location, thereby permitting pressurized gases to escape from the container.

REFERENCES:
patent: 3292826 (1966-12-01), Abplanalp
patent: 3831822 (1974-08-01), Zundel
patent: 4484691 (1984-11-01), Lees
patent: 4698282 (1987-10-01), Mantello

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