Pressure responsive circuit interrupter
US4129759A · kind A · utility
35Cited by
3References
12Claims
0Family size
Inventor
Key dates
| Filing date | Jul 16, 1976 |
| Grant date | Dec 12, 1978 |
| Priority date | — |
| Expiry date | Jul 16, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H35/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit interrupter with a frangible conductor which breaks to interrupt a circuit in response to an increase of fluid pressure above a predetermined level. In one version, the conductor is on a frangible member exposed to the pressure on one side and sealed by a cover and container on the side. In another version, a spring urged piston tensions a wire conductor and fluid pressure on the piston above the predetermined pressure breaks the wire. In another variation a diaphragm exposed to the pressure moves an element which ruptures the conductor when the pressure on the diaphragm exceeds the predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.