Moisture-proof housing for containing an electric accumulator

Details Moisture-proof housing for containing an electric accumulator Moisture-proof housing for containing an electric accumulator

1997-10-15

1999-08-24

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

Elastic, resilient or spring biasing valve means

429 89, 429162, 429185, H01M 212

Patent

active

059423510

ABSTRACT:
A moisture-proof housing is disclosed intended for containing a battery. The housing includes two walls or plates which are kept in place by a sealing band located therebetween which defines interior of the housing. Portions of the walls, namely wall or plate protrusions, extend beyond the sealing band. One of the plates has a hole located exterior to the housing during normal conditions. The sealing band includes a movable part which slides between the two plates. When the interior housing pressure exceed the exterior pressure, the movable part slides outward to include the hole within the housing interior. This provides a safety valve and vents out the excessive interior pressure. A stop device is provided to avoid excessive displacement of the movable band, such as displacement beyond the plate protrusions.

REFERENCES:
patent: 4614695 (1986-09-01), Ibbott
patent: 4664994 (1987-05-01), Koike et al.
patent: 4678725 (1987-07-01), Kikuchi et al.
patent: 5326652 (1994-07-01), Lake
patent: 5652043 (1997-07-01), Nitzan

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