Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...
Patent
1989-12-07
1992-01-14
Kalafut, Stephen J.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Cell enclosure structure, e.g., housing, casing, container,...
429174, 429175, H01M 204
Patent
active
050809857
ABSTRACT:
This invention relates to a seal for a cylindrical alkaline cell. The member includes a metal support having an annular spring disposed at the outer periphery. The spring is placed under compression by a radial crimp and the spring is adapted to expand and contract whereby the seal is maintained during thermal cycling. The member also includes a plastic grommet having an annular vent designed to open at very high pressures whereby said seal member is particularly useful in alkaline cells having little or no mercury whereby high internal pressures can develop.
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Falczuk Boris
Payne Robert J.
Pope Peter J.
Shepard, Jr. Vance R.
Wiacek Marian
Cornell Ronald S.
Duracell Inc.
Kalafut Stephen J.
McVeigh, Jr. James B.
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