Casing of an electric cell
US4074022A · kind A · utility
5Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 9, 1976 |
| Grant date | Feb 14, 1978 |
| Priority date | — |
| Expiry date | Nov 9, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a casing of an electric cell and to a method of manufacturing the cell. The casing is fitted with a vent. The vent consists of a tongue formed in a metal portion of the casing whose inner surface is in contact with a seal; the non-detached tongue in the wall is turned towards the enclosed volume of the casing. In the case of internal overpressure, the seal is deformed and allows the interior of the electric cell to communicate with the exterior. Application to alkaline electrolyte cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.