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U.S. Department of Energy
Office of Scientific and Technical Information

Apparatus for conserving energy in electrical appliances

Patent ·
OSTI ID:6649658
An apparatus for connecting and disconnecting appliances to an electrical supply, responsive to door activated switch means is given. A transmitter responds to entrance into a room by causing a receiver to activate a connecting means supplying an appliance with electrical energy. Upon closure of the door, a deadbolt must be engaged within the room within a predetermined period to maintain the appliances in their energized states. Release of the deadbolt to exit from the room causes the transmitter to enter a delay sequence, thereby providing an occupant with sufficient time to exit prior to de-energizing the appliances. Subsequent thereto, a signal is transmitted to the receiver for shutdown of the appliances. An overriding thermostat is provided to control heating and cooling appliances responsive to the transmitter, the thermostat having a broader thermal zone of operation than a typical thermostat controlling the heating and cooling appliances in the presence of the room occupant. An occupant-activated switch is provided to override the deadbolt and control the transmitter under certain circumstances.
Assignee:
IFI; EDB-81-033329; ERA-06-011156
Patent Number(s):
US 4223301
OSTI ID:
6649658
Country of Publication:
United States
Language:
English