Submersible and flame retardant battery vent plug
US5108853A · kind A · utility
36Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 20, 1990 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Dec 20, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A submersible flame-retardant vent plug is adapted for use in storage batteries of the type containing liquid electrolyte. The plug has inlet and outlet slots and a hollow portion providing a gas communication path. A porous flame arrester is positioned in the path. A check valve is positioned in the path between the flame arrester and the outlet slots and is adapted to be opened by gas pressure from the battery's interior and to be closed by water pressure from the battery's exterior.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.