Device for Simulating Human Activity in an Unoccupied Dwelling
OwnerLee Von Gunteninventor
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Abstract
The present invention is a thermally activated electrical switch for use in simulating human activity. The invention is features dual heat sources enclosed in a thermally isolated chamber within the invention. Since the activation of the switch is dependent upon the ambient temperature of the environment, it opens and closes at sufficiently random intervals to simulate human activity. This embodiment includes the use of a photoelectric sensor to further vary timing of the switch actuation.
Claims20
A thermally sensitive electrical security device comprising:
- a. A thermally sensitive switch coupling a power source to an electrical load;
- b. At least one heat source;
- and
- c. A photoelectric cell in operable connection to both the heat source and the power source;
- Wherein the photoelectric cell varies in resistance so as to divert current into the heat source and thereby activate the switch.
A security system for electrical loads comprising:
- a. a connection means to electrical power;
- b. a thermo-sensitive electrical switch;
- and,
- c. a connection means to an electrical load.
A non-horologically based electrical switching device comprising:
- a. A connection means to a power supply;
- b. A photosensitive resistor coupled to a heat source;
- c. A switch activated by thermal conditions;
- and
- d. A connection means to an electrical load;
- Wherein varying ambient light conditions affect current directed to the heat source, thereby causing random fluxations in heat generated by said heat source and correspondingly random opening and closing of the switch being somewhat independent of lighting conditions.
Dependencies are inferred from the claim text.