Electrical transmission or interconnection systems – Switching systems – Switch actuation
Patent
1981-06-03
1982-12-21
Gellner, Michael L.
Electrical transmission or interconnection systems
Switching systems
Switch actuation
307157, H01H 334
Patent
active
043651690
ABSTRACT:
Random voltage spike incident to any appliance load change in electrical supply circuit is sensed by a triac used to close a time limited holding circuit for an electric light circuit to provide random on/off lights "at home" indication for unoccupied premises.
REFERENCES:
patent: 3225265 (1965-12-01), Krause et al.
patent: 3763377 (1973-10-01), Weston
patent: 4207501 (1980-06-01), Smallegan
patent: 4219741 (1980-08-01), Von Gunter
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