Chemistry: electrical current producing apparatus – product – and – Means externally releasing internal gas pressure from closed... – Elastic – resilient or spring biasing valve means
Patent
1987-09-02
1988-10-25
Walton, Donald L.
Chemistry: electrical current producing apparatus, product, and
Means externally releasing internal gas pressure from closed...
Elastic, resilient or spring biasing valve means
429 55, 137843, 137853, H01M 212
Patent
active
047803789
ABSTRACT:
A relief/check valve for venting an electric storage battery comprising essentially an annular sealing member having an elastomeric skirt engaging the sloping exterior surface of a valve seat. The skirt flares outwardly from the seat in direct proportion to the pressure in the battery such as to prevent excessive build up of pressure in the battery when the gassing rate is high. The skirt quickly returns to a sealing condition when the pressure within the battery drops below the opening pressure of the valve.
REFERENCES:
patent: 2713953 (1955-07-01), Jewell
patent: 3601152 (1971-08-01), Kenworthy
patent: 4189033 (1980-02-01), Katsumori
patent: 4576879 (1986-03-01), Nakazawa et al.
Cole Bruce A.
McCartney, Jr. Charles P.
Meadows Clarence A.
Montgomery Charles C.
General Motors Corporation
Plant Lawrence B.
Walton Donald L.
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