Sealed lead-acid cells and batteries having an expandable cover
US5660946A · kind A · utility
37Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1996 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Jul 2, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Sealed lead-acid cells and batteries include an expandable cover capable of accommodating the grid growth which occurs in service, the expandable cover comprises a first region which expands outwardly toward a second region and a flange which defines the terminal opening, and the cells or batteries include a terminal cover sealing assembly comprising inner-and outer-cell sealing members which together form an annulus in which the flange is seated and retain one or both include resilient seals such as an O-ring that provide a terminal-cover seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.