Chemistry: electrical current producing apparatus – product – and – Means externally releasing internal gas pressure from closed... – Blowout type
Reexamination Certificate
2006-11-03
2010-02-23
Kalafut, Stephen J. (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Means externally releasing internal gas pressure from closed...
Blowout type
C429S174000, C029S623200, C029S623400, C228S001100, C228S110100
Reexamination Certificate
active
07666541
ABSTRACT:
Batteries are disclosed having a vent opening that is sealed by a metal foil. Methods and tooling for manufacturing such batteries and methods of venting sealed batteries are also disclosed. In some implementations, sealing is performed using ultrasonic metal welding.
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Berkowitz Fred J.
Brown Mark C.
Foster Robert
Janik Jaroslav
Makovetski Boris
Fish & Richardson P.C.
Kalafut Stephen J.
The Gillette Company
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