Pressure relief valve for electric storage batteries

Details Pressure relief valve for electric storage batteries Pressure relief valve for electric storage batteries

1998-01-20

1999-11-09

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

429 54, 429 82, H01M 212

Patent

active

059810998

ABSTRACT:
A valve for an electric storage battery, including a cap housing for being positioned in an access port in the battery, the cap housing having interior side walls defining a gas-flow orifice therethrough. A valve member is positioned in the gas-flow orifice of the cap housing, and comprises a valve body, including at least one vent defining a gas-flow passage from an upstream to a downstream side of the valve body, a resilient, radially-outwardly extending annular skirt positioned on the downstream side of the valve body in gas-flow communication with the vent, the skirt extending radially outwardly from the valve body in the downstream direction. The skirt has an outermost free end normally sealingly engaging the side walls of the cap housing defining the gas-flow orifice. The annular skirt and adjacent side walls of the cap housing define therebetween an annular recess in gas-flow communication with the vent. The recess progressively narrows in the downstream direction to a terminus at the outermost free end of the skirt. The skirt is adapted to be resiliently responsive to internal gas pressure in the recess acting on the skirt to disengage the side walls of the cap housing by radial, inward movement at a predetermined gas pressure in the battery to provide a gap between the free end of the skirt and the side walls of the cap housing for passing gas past the valve member and into the atmosphere.

REFERENCES:
patent: 3170325 (1965-02-01), Sinclair
patent: 3253963 (1966-05-01), Sabatino
patent: 3388007 (1968-06-01), Fiandt
patent: 3664878 (1972-05-01), Amthor
patent: 3861965 (1975-01-01), O'Sullivan
patent: 3909302 (1975-09-01), Mermelstein
patent: 3994749 (1976-11-01), Decket et al.
patent: 4002495 (1977-01-01), Hakarine
patent: 4075399 (1978-02-01), Sabatino et al.
patent: 4168350 (1979-09-01), Oxenreider et al.
patent: 4186247 (1980-01-01), Mocas
patent: 4271241 (1981-06-01), Hooke et al.
patent: 4286028 (1981-08-01), Heiser et al.
patent: 4298662 (1981-11-01), Sugalski et al.
patent: 4306002 (1981-12-01), Heiser et al.
patent: 4517262 (1985-05-01), Beidler
patent: 4780378 (1988-10-01), McCartney, Jr. et al.
patent: 5004655 (1991-04-01), Symanski
patent: 5217823 (1993-06-01), Geibl et al.
patent: 5258243 (1993-11-01), Cannone
F.J. Vaccaro, J. Rhoades, K. Marion, R. Malley & M. Sirard of Power Battery Company; Valves for Immoblilized Electrolyte Lead-Acid Batteries Requirements, Design, and Performance; Publication Dates was Prior to the Date This Application Was Filed; All pages; No Volume-Issue No; Power Battery Company, Inc.; U.S.A.

Affiliated with

Also associated with

Rating

Pressure relief valve for electric storage batteries does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pressure relief valve for electric storage batteries, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure relief valve for electric storage batteries will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1453264