Timed switching circuit
US3988727A · kind A · utility
48Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 24, 1974 |
| Grant date | Oct 26, 1976 |
| Priority date | — |
| Expiry date | Jun 24, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/292
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A timed switching circuit includes timer means for timing an event, timer means for timing the length of an alarm signal, and timer means for timing delays prior to and immediately after an event is timed. The circuit also includes an appliance control/indicator means for controlling an appliance in response to a timed event and indicating the operational state thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.