Chemistry: electrical current producing apparatus – product – and – Means externally releasing internal gas pressure from closed... – Elastic – resilient or spring biasing valve means
Patent
1979-07-13
1981-10-20
Cohen, Irwin C.
Chemistry: electrical current producing apparatus, product, and
Means externally releasing internal gas pressure from closed...
Elastic, resilient or spring biasing valve means
137539, 137DIG4, 220203, 361433, B65D 5116, F16K 1514, H01M 212
Patent
active
042961866
ABSTRACT:
A pressure relief valve is provided having only two parts, a housing and a valve body located in a chamber in the housing. In a first embodiment, the housing has a deformable elastic, stressed wall opposite the valve seat, with a rigid valve body engaging the wall and the valve seat in closed condition. In a second embodiment, the housing is rigid and the valve body is of deformable, elastic material and is stressed when in position in the housing, engaging the wall and the valve seat in closed condition. The valve body is preferably spherical, the height perpendicular to the plane of the valve seat being at least about 75% of the width, parallel to the valve seat. The housing of the first embodiment may be of metal, such as sheet steel, or of plastic. Plastic housings which are elastically deformable may be injection molded directly into an opening in a container part, or may be separately molded and then secured in the opening of a container part. Alternatively, the plastic housing may be rigid and molded integrally with and as a part of a container part.
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patent: 4047790 (1977-09-01), Carino
Cohen Irwin C.
Lavine Irvin A.
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