Combination plug and power cut-off unit
US4086643A · kind A · utility
26Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 5, 1976 |
| Grant date | Apr 25, 1978 |
| Priority date | — |
| Expiry date | Apr 5, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H83/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A combination electrical plug and cord and power cut-off unit with a male electrical plug rigidly secured to a housing from which the cord extends, the housing serving as a hard grip for insertion and removal of the plug, the housing containing an electrical relay holding circuit including an externally accessible momentary contact switch wherein a power failure in the supply line will effect a disconnect of the relay requiring a manual actuation of the switch to restore power to the cord leading to a machine or other electrical accessory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.