Anti-abuse circuit
US5467245A · kind A · utility
Inventor
Key dates
| Filing date | Jun 22, 1993 |
| Grant date | Nov 14, 1995 |
| Priority date | — |
| Expiry date | Jun 22, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/1951
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An anti-abuse circuit and method is described for shutting down a load wherein the load is connected to a controller having a predetermined range and demanding operation of the load through a relay until the predetermined temperature range is achieved. The anti-abuse circuit is positioned between the controller and the load. The anti-abuse circuit controls the relay when a demand signal is present indicating the operation of the load. The anti-abuse circuit energizing the relay during the predetermined time period and receipt of the regulated demand signal. The anti-abuse circuit de-energizing the relay when either the predetermined time period expires or the regulated demand signal stops.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.