Anti-explosion cap for storage batteries

Details Anti-explosion cap for storage batteries Anti-explosion cap for storage batteries

H - Electricity

01

M

319/122

H01M 2/12 (2006.01)

Patent

CA 1065400

PATENT APPLICATION of JAMES B. GODSHALK for ANTI-EXPLOSION CAP FOR STORAGE BATTERIES ABSTRACT OF THE DISCLOSURE An inexpensive anti-explosion, anti-flame cap for openings in storage battery casings is formed, as by injection molding, from polymeric material in such fashion as to provide at least one critically dimensioned and located vent orifice effective to prevent establishment of a persistent flame at the orifice when hydrogen and oxygen are evolved during charging of the battery, and further effective to prevent propagation of flame through the orifice into the interior of the cap. Caps according to the invention also include internal mist chambers so arranged that liquid electrolyte is prevented from reaching the vent orifice or orifices and does not "pump through" the cap as a result of vibration of the storage battery in use.

259413

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