Vent system with flame arresting capability

Details Vent system with flame arresting capability Vent system with flame arresting capability

1977-04-13

1978-05-23

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Having specified venting, feeding or circulation structure

Venting structure

429 89, 220367, H01M 212

Patent

active

040911799

ABSTRACT:
A vent system for an electric storage battery having a flame arresting capability to minimize the possibility of battery explosion from ignition of explosive gases flowing from the vent plug. The vent system includes a vent plug design having an internal restricted passage and a flange extending around the top of the vent plug which cooperates with the upper surface of the battery cover to create an explosion chamber, so that in the event the explosive gases being vented are ignited, the resulting controlled explosion extinguishes the flame. One embodiment is provided wherein the top surface of the plug is flush with the top of the battery cover. A modified vent well is required for this embodiment, whereby the vent well in the battery cover has a recessed shoulder to receive the flange portion of the vent plug. A second embodiment is also provided wherein the vent plug can be used on conventional battery cover designs, but is not flush with the top of the battery cover.

REFERENCES:
patent: 3879227 (1975-04-01), Hennen
patent: 3907605 (1975-09-01), Melone
patent: 3915752 (1975-10-01), Gross
patent: 3992226 (1976-11-01), Godshalk
patent: 4010044 (1977-03-01), Schaumburg

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