Resealable vent valve for containers such as batteries

Details Resealable vent valve for containers such as batteries Resealable vent valve for containers such as batteries

H - Electricity

01

M

319/48

H01M 10/44 (2006.01)

Patent

CA 1164045

36-BA-3278 RESEALABLE VENT VALVE FOR CONTAINERS SUCH AS BATTERIES ABSTRACT OF THE DISCLOSURE This invention pertains to a novel resealable pressure relief vent valve for use in normally sealed containers such as sealed electric batteries or cells wherein said vent valve includes an outer plate having a centrally-raised area, an inner plate having a centrally recessed area, said plates joined at their ends and forming a cavity therebetween, and a compressed resilient elastomeric member interposed in the cavity and positioned to overlie a vent orifice located in the inner plate, whereby during normal operation of the battery or cell the elastomeric member seals the vent orifice and when internal container pressure exceeds a predetermined limit, the elastomeric member distorts, breaking the seal and allowing the venting of the cell.

386682

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