Energy conserving thermostatic control
First Claim
1. A thermostatic control for use with a heating/cooling system which includes a source of low voltage operating potential and a system control relay connected electrically in series therewith, a thermostatic control comprising source means connected electrically in series with said low voltage source for providing a continuous source of operating energy for said control irrespective of the operating state of said relay, and for generating a continuous clock pulse train of predetermined frequency, timing means coupled to said source means for cyclically generating a temperature set point shifting signal at predetermined time intervals, said timing means including means for selecting the time duration of said shifting signal and means for selecting the magnitude thereof, temperature regulating circuit means including temperature set point means for generating a set point control signal and temperature sensing means for generating a variable control signal proportional to the temperature in said area for generating a modulating signal to control the system, and thereby the temperature, in said area, said regulating circuit being connected to said timing means to receive said temperature shifting signal and being responsive thereto to alter one of said control signals and thereby the regulated temperature in said area.
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Accused Products
Abstract
Disclosed is an energy conserving thermostatic control for use wih heating and/or air conditioning systems. The control includes solid state circuitry for automatically controlling or regulating the temperature of an area at at least two different selected temperatures at selected times and for selected periods. The control is compatible with conventional heating and/or air conditioning systems and in most instances can be installed therewith without modification or rewiring of the system.
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Citations
19 Claims
- 1. A thermostatic control for use with a heating/cooling system which includes a source of low voltage operating potential and a system control relay connected electrically in series therewith, a thermostatic control comprising source means connected electrically in series with said low voltage source for providing a continuous source of operating energy for said control irrespective of the operating state of said relay, and for generating a continuous clock pulse train of predetermined frequency, timing means coupled to said source means for cyclically generating a temperature set point shifting signal at predetermined time intervals, said timing means including means for selecting the time duration of said shifting signal and means for selecting the magnitude thereof, temperature regulating circuit means including temperature set point means for generating a set point control signal and temperature sensing means for generating a variable control signal proportional to the temperature in said area for generating a modulating signal to control the system, and thereby the temperature, in said area, said regulating circuit being connected to said timing means to receive said temperature shifting signal and being responsive thereto to alter one of said control signals and thereby the regulated temperature in said area.
- 16. For use in a heating/cooling system including a source of low voltage operating potential and a system control relay connected electrically in series therewith, said relay being operable between on and off conditions in response to a predetermined voltage thereacross, a thermostatic control comprising source means operable in response to a second predetermined voltage for generating a continuous source of energy for said thermostatic control, said source means being connected electrically in series with said system relay, timing means coupled to said source means for cyclically generating a temperature set point shifting signal at predetermined time intervals, said timing means including means for selecting the time duration of said shifting signal and means for selecting the magnitude thereof, temperature regulating circuit means including temperature set point means for generating a set point control signal and temperature sensing means for generating a variable control signal proportional to the temperature in said area for generating a modulating signal to control the heating system, and thereby the temperature, in said area, said regulating circuit being connected to said timing means to receive said temperature shifting signal and being responsive thereto to alter one of said control signals and thereby the regulated temperature in said area.
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19. A thermostatic control for use with a heating/cooling system which includes a source of low voltage operating potential and a system control relay connected electrically in series therewith, a thermostatic control comprising source means connected to said low voltage source for providing a continuous source of operating energy for said control and for generating a continuous clock pulse train of predetermined frequency, timing means coupled to said source means for cyclically generating a temperature set point shifting signal at predetermined time intervals, said timing means including means for selecting the time duration of said shifting signal and means for selecting the magnitude thereof, temperature regulating circuit means including temperature set point means for generating a set point control signal and temperature sensing means for generating a variable control signal proportional to the temperature in said area for generating a modulating signal to control the system, and thereby the temperature, in said area, said regulating circuit being connected to said timing means to receive said temperature shifting signal and being responsive thereto to alter one of said control signals and thereby the regulated temperature in said area, said source means, timing means, and temperature regulating circuit means being miniaturized solid state electronic circuits having a power consumption substantially less than the power capacity of said source of low voltage operating potential.
Specification