Metal working – Method of mechanical manufacture – Electrical device making
Patent
1997-10-14
2000-05-23
Nuzzolillo, Maria
Metal working
Method of mechanical manufacture
Electrical device making
296231, 429171, 429185, H01M 600, H01M 208
Patent
active
060661844
ABSTRACT:
In a voltaic cell, especially in the form of a button cell, with a metal housing sealed liquid-tight including a cell cup and a cell lid electrically insulated against it by a seal, the seal is formed from a sealing part produced by deep drawing from a plastic film. This sealing part is shrink-fitted onto the edge of the cell lid. To produce the voltaic cell, a sealing part is formed by deep drawing from a plastic film, which sealing part is subsequently placed on the edge of the cell lid, shrink-fitted onto the edge of the cell lid and the cell cup is flanged around it.
REFERENCES:
patent: 3440110 (1969-04-01), Arbter
patent: 3748182 (1973-07-01), Brown
patent: 4220695 (1980-09-01), Ishida et al.
patent: 4327165 (1982-04-01), Kuhl
patent: 4333995 (1982-06-01), Ishida et al.
patent: 4404266 (1983-09-01), Smilanich
patent: 4419420 (1983-12-01), Ishizaki
patent: 5728484 (1998-03-01), Yamaguchi et al.
Dove Tracy
Nuzzolillo Maria
Varta Batterie Aktiengesellschaft
Weiser Gerard J.
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