Safety valve element for capacitor and capacitor case lid with safety valves
US6257267A · kind A · utility
16Cited by
10References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1999 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Feb 8, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/1714
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The object of the present invention is to provide safety valve elements for condenser use, which rupture precisely at a predetermined pressure especially stably in a low pressure range so as to release inner pressure outside and can be manufactured readily, and to provide a condenser which incorporates the safety valve elements. The safety valve elements for condenser use according to the present invention comprises a metal substrate A which is provided with a perforated opening C and a metal foil B laid over the metal substrate A to close the perforated opening C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.