Appliance control system
US6112135A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1998 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Mar 13, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control system for preventing the occurrence of unsafe operating conditions on an appliance load comprises first and second switch elements coupled to said appliance load; first controller means coupled to said first switch element for detecting a first predetermined fault condition and producing a first fault detection signal in response to said detection of said predetermined fault condition, said first fault detection signal deactivating said first switch element and de-energizing said load; and second controller means coupled to said second switch element for detecting a second predetermined fault condition and producing a second fault detection signal in response to said detection of said predetermined fault condition, said second fault detection signal deactivating said second switch element and de-energizing said load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.