Multiple circuit overload protection device
US5229908A · kind A · utility
3Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1991 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Apr 24, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S20/222
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sensor connected to two different phases of an electrical wiring system provides positive protection against overloading of any single phase by preventing operation of one circuit load when there is no phase difference between the wiring circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.