Multi-stage electrical control system
US4419589A · kind A · utility
18Cited by
11References
6Claims
0Family size
Inventor
Key dates
| Filing date | Jun 14, 1982 |
| Grant date | Dec 6, 1983 |
| Priority date | — |
| Expiry date | Jun 14, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S20/222
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Multi-stage electrical load control apparatus includes current transformers for sensing the on and off status of electrical load elements and a predetermined priority system selectively allows different electrical load elements to be turned on and off in response to the sensed load status.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.