Chemistry: electrical current producing apparatus – product – and – Having specified venting – feeding or circulation structure – Venting structure
Patent
1983-12-21
1985-05-14
LeFevour, Charles F.
Chemistry: electrical current producing apparatus, product, and
Having specified venting, feeding or circulation structure
Venting structure
429 53, 429 89, H01M 212
Patent
active
045172625
ABSTRACT:
A vent cap for enclosing filler openings of a storage battery comprises a base terminating at a rim including a generally U-shaped channel and a cover, the periphery of which engages the channel of the base. The periphery of the cover is provided with an essentially planar face having a chamfered termination and a plurality of circumferentially spaced, secant-shaped portions formed therein. The inner and outer faces of the cover are provided with reliefed portions adjacent to the secant-shaped portions formed in the cover's periphery. The secant-shaped portions formed in the periphery of the cover and the reliefed portions formed in the inner and outer faces of the cover cooperate with the U-shaped channel to develop a series of apertures between the base and cover.
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Electrical Equipment in Mines, by H. Cotton, Front Page and p. 405.
General Battery Corporation
LeFevour Charles F.
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