Input control system
US4261179A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 22, 1978 |
| Grant date | Apr 14, 1981 |
| Priority date | — |
| Expiry date | Sep 22, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D21/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An input control system having a sensing circuit, a switching circuit and a source of power isolated from the sensing circuit and the switching circuit. The sensing circuit includes a sensor having a variable electrical characteristic, a detector for detecting variations in that characteristic and for producing a representative output, a signal producing circuit for producing a predetermined signal in response to the detector output achieving a selected value, and coupler responsive to the predetermined signal to produce a coupling output. The switching circuit which is isolated from the sensing circuit produces a switching signal in response to the coupling signal to operate a switch for connecting an electrical load to the power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.