Low float technology battery
US4931367A · kind A · utility
11Cited by
2References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1988 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | Oct 28, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a device for providing stand-by power to an electrical apparatus, such as a telephone switching system, the battery contained therein is maintained at a positive plate polarization of about 20 to 40 millivolts per cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.