Resettable circuit closing device
US4567456A · kind A · utility
51Cited by
4References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 13, 1983 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Jun 13, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H83/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A resettable contact closing device opens a load circuit connected to a power line protected by a ground fault interrupter circuit, if the neutral conductor is broken. The contacts are closed by a mechanical reset actuator only if a solenoid is energized by a potential proportional to the line-to-neutral voltage to hold the actuator in a contact closing position. If the neutral conductor is broken, the solenoid will not be energized and the contacts, and hence the power line to the load circuit, will be opened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.