Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...
Patent
1978-04-04
1979-04-17
LeFevour, Charles F.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Cell enclosure structure, e.g., housing, casing, container,...
429174, 429185, H01M 208
Patent
active
041502213
ABSTRACT:
An arrangement for sealing a button-type electric cell. Such a cell comprises a metal cup which contains a first electrode, and a metal cap which forms a cover to the cup and which contains a second electrode of opposite polarity. The rim of the cup is turned down over a seal disposed on the rim of the cap. A metal ring which has a cylindrical portion in contact with the inner face of the cylindrical wall of the cup, an intermediate portion which has a stair-case or an oblique cross-section and an annular portion which is orthogonal to the cylindrical portion is disposed in the cup, these latter two portions making it possible to compress the seal against the cylindrical wall of the cup.
REFERENCES:
patent: 3457117 (1969-07-01), Angelovich
patent: 3615861 (1971-10-01), Braem
LeFevour Charles F.
Saft-Societe des Accumulateurs Fixes et de Traction
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