Vented battery cap

Details Vented battery cap Vented battery cap

1978-05-30

1980-01-29

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Having specified venting, feeding or circulation structure

Venting structure

429 89, H01M 212

Patent

active

041862473

ABSTRACT:
A vented cap for a multiple cell storage battery comprises a base member having a plurality of integrally molded vent plug portions adapted to fit into individual filler walls of the battery and a cover member which snaps in place over the base member to form a chamber for gas egressing from the battery. The base member includes interior walls and a plurality of integrally molded latch members which engage the rim of the cover member to secure the cover member in abutting relationship to the interior walls. The interior walls are dimensioned to space the rim of the cover member from the rim of the base member whereby a continuous vent slot is formed around the periphery of the cap which allows battery gas to escape from the chamber with wide dispersion while inhibiting inward propagation of an externally generated flame. The latch members may be alternatively provided on the cover member so as to engage the rim of the base member, and the vented cap may also be constructed in single-cell form having a single vent plug portion for insertion into a single battery filler well.

REFERENCES:
patent: 3284244 (1966-11-01), Lucas
patent: 3879227 (1975-04-01), Hennen
patent: 3992226 (1976-11-01), Godshalk
patent: 4086395 (1978-04-01), Heiser

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