Control apparatus

Abstract

.Iadd.A thermostat for controlling heating apparatus is converted to a thermostat for controlling heating and cooling apparatus by the addition of a subbase. The heating thermostat has a double switch attached to a bimetal and a heating anticipation heater whereby heating apparatus is controlled when connected to the terminals of the thermostat. When it is desired to use the thermostat to control both heating and cooling apparatus, the thermostat is removed from the wall and a subbase is placed under the thermostat. The subbase has a cooling anticipation heater which is thermally connected to the bimetal. The subbase has terminals to connect the assembly of thermostat and subbase to the heating and cooling apparatus. .Iaddend.

The present invention is described and presented in various embodiments; however, the intent is to limit the scope of the invention only by the appended claims in which we claim: 
     
       1. In a thermostat for controlling heating .[.and cooling.]. apparatus, .Iadd.and being adaptable for controlling cooling apparatus by adding a subbase, .Iaddend.a main unit having a base, temperature responsive switch means mounted on said base, a first heater mounted .Iadd.on said base .Iaddend.in thermal relation to said temperature responsive switch means, and connection means adapted to connect said heater and said switch means in a circuit for controlling the heating apparatus, a subbase unit having a second heater, .Iadd.and .Iaddend.means for mounting said main unit on said subbase unit to thermally connect said second heater to said temperature responsive switch means and electrically connect said .Iadd.first and .Iaddend.second .[.heater.]. .Iadd.heaters .Iaddend.to said switch means and .Iadd.adapted to connect .Iaddend.said switch means to control the .Iadd.heating and the .Iaddend.cooling .[.apparatus..]. .Iadd.apparatuses. .Iaddend. 
     
     
       2. In a thermostat for controlling heating .[.and cooling.]. apparatus, .Iadd.and being adaptable for controlling cooling apparatus by adding a subbase unit .Iaddend.a main unit having a base, temperature responsive means mounted on said base, first and second switch means, means connecting said first and second switch means to said temperature responsive means, a first heater mounted .Iadd.on said base .Iaddend.in thermal relation to said temperature responsive switch means, and connection means adapted to connect said heater and said first switch means in a circuit for controlling the heating apparatus, and a subbase unit having a second heater, .Iadd.and .Iaddend.means connecting said main unit and said subbase unit to thermally connect said second heater to said temperature responsive means and .Iadd.adapted .Iaddend.to electrically connect said .Iadd.first and .Iaddend.second switch means to control said .Iadd.first and .Iaddend.second .[.heater.]. .Iadd.heaters .Iaddend.and the .Iadd.heating and the .Iaddend.cooling .[.apparatus.]. .Iadd.apparatuses. .Iaddend. 
     
     
       3. In a thermostat for controlling heating apparatus and being adaptable for controlling cooling apparatus by adding an auxiliary base, a first base, temperature responsive means .Iadd.having a first anticipation heater .Iaddend.mounted on said base, means connecting said temperature responsive means to control .Iadd.said first heater and .Iaddend.the heating apparatus, a second auxiliary base, means connectively mounting said first and second bases together, .[.an.]. .Iadd.a second .Iaddend.anticipation heater mounted on said second base, said .Iadd.second .Iaddend.heater being thermally coupled to and effective to modify the temperature of said responsive means when said second base is mounted on said first base, and means including said second base connecting said temperature responsive means to control the .Iadd.heating and the .Iaddend.cooling .[.apparatus.]. .Iadd.apparatuses .Iaddend.said last mentioned means connecting said .[.heater.]. .Iadd.heaters .Iaddend.to be selectively energized by said responsive means. 
     
     
       4. In a thermostat for controlling a first conditioning apparatus and being adaptable for controlling a second conditioning apparatus by adding a base unit, a first base .Iadd.unit .Iaddend.temperature responsive means mounted on said base .Iadd. a first anticipation heater mounted on said base unit, .Iaddend.means connecting said temperature responsive means to control .Iadd.said first heater and .Iaddend.the first conditioning apparatus, a second base unit, means connecting said first and second base units, .[.an.]. .Iadd.a second .Iaddend.anticipation heater means mounted on said second base unit, means thermally connecting said heater means to be effective to modify the temperature of said responsive means when said second base unit is mounted on said first base unit, and means included in said second base unit electrically connecting said temperature responsive means to control the .Iadd.first and the .Iaddend.second conditioning .[.apparatus.]. .Iadd.apparatuses.Iaddend., said last mentioned means electrically connecting said .[.heater.]. .Iadd.heaters .Iaddend.to be selectively energized. .[.5. A thermostat assembly comprising a main body, a secondary body for modifying said main body, and means connecting said main body and said secondary body, said main body comprising a base member, a temperature responsive means, support means connected to said base member and said responsive means, switch means, and means connecting said switch means to said responsive means, said secondary body comprising an anticipation heater, a second base member, spring means supporting said heater on said second base member, said spring means engaging said support means to thermally connect said heater to said temperature responsive means when said main body is mounted on said secondary body, and connection means connecting said switch means to control the energization of said anticipation heater..]. .[.6. A thermostat assembly comprising a main body connected to control heating apparatus and a secondary body connected to said main body controlling both heating and cooling apparatus, said main body comprising a temperature responsive means,   a base,   support means mounting said temperature responsive means on said base,   switch means,   connection means connecting said switch means to said temperature responsive means,   and electrical connection means adapted to connect said switch means to the heating apparatus,   said secondary body comprising an anticipation heater,   resilient means thermally connected to said heater, said resilient means engaging said support means when said main body is mounted on said secondary body to conduct heat from said heater to said temperature responsive means,   connection means connecting said switch means to control the cooling apparatus,   and further connecting means connecting said heater to said switch means..]. .[.7. A subbase to be connected to a thermostat having a temperature responsive switch means to control both heating and cooling conditioning apparatus but normally only controlling heating apparatus comprising, anticipation heater means, thermal connection means adapted to connect said heater means to said temperature responsive means when the thermostat is connected to said subbase, and electrical connection means connecting said heater means to the temperature responsive switch means when said switch means is connected to control the conditioning apparatus..]. .[.8. A subbase to be connected to a thermostat having a temperature responsive switch means adapted to control both heating and cooling apparatus comprising, a base, anticipation heater means mounted on said base, resilient connection means connected to said heater means and adapted to be thermally connected to said temperature responsive means when the thermostat is connected to said subbase, and electrical connection means adapted to connect said heater means to be controlled by the temperature responsive switch means when said switch means is connected to control cooling apparatus..]. .[.9. In a subbase adapted to be connected to a thermostat having a temperature responsive switch means,   a base,   means for connecting said base to the thermostat,   anticipation heater means,   resilient connection means connected to said base and said heater means, said resilient means being adapted to engage the temperature responsive switch means when the thermostat is connected to said subbase to conduct heat from said heater to said temperature responsive switch means,   and electrical connection means adapted to connect said heater means to a source of power when the switch means is connected to conditioning   
     
     
        apparatus..]. 10. In a thermostat, .Iadd.adaptable for controlling heating apparatus and being adaptable for controlling apparatus by adding a secondary unit, .Iaddend. a main unit having a temperature responsive switch means .Iadd.and an anticipation heating means .Iaddend.adapted to control heating .[.and cooling apparatuses,.]. .Iadd.apparatus, .Iaddend.   electrical means adapted to connect said switch means to control one of the apparatuses,   a secondary unit having electrical means adapted to connect said switch means to control both said heating and cooling apparatuses,   and means connecting said main and secondary units,   an improvement comprising .Iadd.a second .Iaddend.anticipation heating means in said secondary unit and means to thermally connect said .Iadd.second .Iaddend.heating means to said temperature responsive switch means whereby said main unit when used separately to control heating apparatus can have a minimum cost and upon a need for the control of .Iadd.heating and .Iaddend.cooling .[.apparatus.]. .Iadd.apparatuses .Iaddend.said secondary unit can be added. .[.11. In a control system, temperature control means comprising a base, a bimetal, means mounting said bimetal on said base, a switch having first and second circuits, and means mounting said switch on said bimetal; heating control apparatus; a source of power; circuit means including said first circuit for connecting said heating control apparatus to said source; and a subbase for said temperature control means, means connecting said subbase to said base, said subbase comprising an electrical heater, resilient means engaging said means mounting for thermally connecting said heater to said responsive means, cooling control apparatus, circuit means including said second circuit for connecting said cooling control apparatus to said source, and circuit means selectively connecting said heater means to said source..]. .[.12. In a thermostat for controlling a first conditioning apparatus and being adaptable for controlling a second conditioning apparatus by adding an auxiliary base unit,   a first base,   temperature responsive means,   support means mounting said temperature responsive means on said base,   means adapted to connect said temperature responsive means to control the first conditioning apparatus,   a second base unit,   an anticipation heater means,   means mounting said heater means on said second base unit, said first base having an opening for air flow, said heater means being effective to modify the temperature of said responsive means when said second base unit is mounted on said first base unit by the flow of heated air from said heater means through said opening, and   means including said second base unit when mounted on said first base unit adapted to electrically connect said temperature responsive means to control the second conditioning apparatus..]. .[.13. In a control system for controlling temperature control apparatuses,   temperature control means comprising a base, a bimetal mounted on said base, a switch having first and second circuits, and means mounting said switch on said bimetal;   first temperature control apparatus;   a source of power;   circuit means including said first circuit for connecting said first control apparatus to said source;   a subbase,   means connecting said subbase to said temperature control means;   said temperature control means comprising an electrical heater, and means thermally connecting said heater to said responsive means;   second temeprature control apparatus;   circuit means including said second circuit for connecting said second control apparatus to said source; and   circuit means connecting said heater means to said source..]. .Iadd. 14. In a thermostat assembly, wherein a thermostat for controlling heating apparatus is used for controlling heating and cooling apparatus by the addition of a subbase, comprising   a thermostat adapted to be mounted on a wall, said thermostat comprising a base, temperature responsive means attached to said base, switch means connected to said temperature responsive means, said switch means having a first circuit and a second circuit, a heat anticipation heater mounted on said base and being thermally connected to said temperature responsive means, and connection means connecting said first circuit of said switch means and said heat anticipation heater in a circuit to terminals on said base so that heating apparatus can be controlled upon being connected to said terminals, and   a subbase adapted to be mounted between said thermostat and the wall to modify said thermostat when it is desired to convert said thermostat to control heating and cooling apparatus, said subbase comprising, a second heat anticipation heater, and connection means when said subbase is placed under said thermostat for connecting said first circuit of said switch means and said first heater to first terminals on said subbase so that heating apparatus can be controlled upon being connected to said first terminals and for connecting said second circuit of said switch means and said second heater to other terminals on said subbase so that cooling apparatus can be controlled upon being connected to said other terminals, said second heater being thermally connected to said temperature responsive means by a solid heat conducting connection made when said thermostat is mounted on said subbase.