Chemistry: electrical current producing apparatus – product – and – Means externally releasing internal gas pressure from closed... – Elastic – resilient or spring biasing valve means
Patent
1976-11-09
1978-02-14
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
220209, H01M 212
Patent
active
040740226
ABSTRACT:
The invention relates to a casing of an electric cell and to a method of manufacturing the cell. The casing is fitted with a vent. The vent consists of a tongue formed in a metal portion of the casing whose inner surface is in contact with a seal; the non-detached tongue in the wall is turned towards the enclosed volume of the casing. In the case of internal overpressure, the seal is deformed and allows the interior of the electric cell to communicate with the exterior. Application to alkaline electrolyte cells.
REFERENCES:
patent: 3256117 (1966-06-01), Howatt et al.
patent: 3802923 (1974-04-01), Spanur
Saft-Societe des Accumulateurs Fixes et de Traction
Walton Donald L.
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