Dry cell
US4001044A · kind A · utility
4Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1975 |
| Grant date | Jan 4, 1977 |
| Priority date | — |
| Expiry date | Sep 11, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M6/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dry cell of the type enclosing therein an electrolyte mainly consisting of zinc chloride, wherein in order to ensure the more secure air- and liquid-tightness a filler or sealing agent is filled into the space between a plastic top seal and a metal top seal to seal a carbon electrode extended out of the plastic top and the upper end portion of a plastic tube covering the top surface of the plastic top seal, whereby the longer shelf life may be ensured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.