Activation and sealing of storage batteries
US6248138A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1999 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Jun 9, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for activating and sealing a storage battery in an uncontrolled atmosphere. A tubular structure is coupled to a fill port of the battery, the battery is evacuated by connecting the tubular structure to a source of vacuum, and the battery is thereafter filled by connecting the tubular structure to a source of pressurized electrolytic fluid. After the battery has been evacuated and filled, a check valve, slideably positioned in the passage through which the battery has been evacuated and thereafter filled is driven along the passage into a press fit with a valve seat defined proximate the fill port of the battery to seal the battery from contaminants while allowing escape of gas from the interior of the battery housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.