Shock hazard protection system
US4709293A · kind A · utility
46Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1987 |
| Grant date | Nov 24, 1987 |
| Priority date | — |
| Expiry date | Jan 9, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H3/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention teaches a system for protecting people and property against electrical shock which includes immersion detecting circuits, broken wire test circuits, electromechanical circuit breaking means including coil/plunger arrangements, and relay circuit breaking mechanisms cooperative with associated circuitry, all of which are able to be incorporated as a system wholly within the load (appliance) and its associated cord set (including a "plug").
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.