Dual seal battery vent valve
US4756982A · kind A · utility
14Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1987 |
| Grant date | Jul 12, 1988 |
| Priority date | — |
| Expiry date | Nov 9, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/789
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A "sealed" electric storage battery having a check/relief valve for controlling the venting and resealing pressures for the battery wherein the valve has at least two separate sealing members each capable of adjustment independently of the other for better control of both the venting and resealing pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.