Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...
Patent
1991-06-12
1992-01-07
Hearn, Brian E.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Cell enclosure structure, e.g., housing, casing, container,...
429164, 429166, 429168, 429169, 429170, H01M 202, H01M 206, H01M 606
Patent
active
050791087
ABSTRACT:
An improved dry cell seal closure is disclosed which will substantially prevent moisture loss from and/or oxygen ingress into a battery cell while maximizing the volume available within the cell for the cathode mix core. The seal closure comprises a seal member, such as a plastic washer, placed on top of the cell, covering all of the edge of the domed lip; sealing means, such as an adhesive coated plastic tape, adhesive coated shrink film wrap or shrink film tube, positioned to cover all of the edge and at least part of the upper surface of the seal member and to extend over at least a portion of the side of the cell, thus holding the seal member in place; a compression member placed over the seal member to partially cover the sealing means, further securing the seal member and creating a seal between the seal member and the domed lip of the cell and between the seal member and the metal terminal member of the battery an insulator tube placed around the cell and extending over at least a portion of the top of the metal terminal member; and an outer jacket covering the insulator tube and dry cell which extends radially inwardly over a portion of the top of the metal terminal member so as to exert and maintain adequate sealing pressure on said metal terminal member, said compression member, said sealing means, and said seal member.
REFERENCES:
patent: 2243938 (1941-06-01), Anthony
patent: 3506495 (1970-04-01), Reilly et al.
patent: 4001044 (1977-06-01), Miyoshi et al.
patent: 4632887 (1986-12-01), Jung
Annen James H.
Schneider Daniel A.
Hearn Brian E.
Nuzzolillo Maria
Rayovac Corporation
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