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| Number | Title | Issue Date |
| 7159789 | Thermostat with mechanical user interface A thermostat having a thermostat housing and a rotatable selector disposed on the thermostat housing. The rotatable selector adapted to have a range of rotatable positions, where a desired parameter value is identified by the position of the rotatable selector along... | 01/09/2007 |
| 6660976 | Device for controlling the service loads of an electric household appliance, in particular a refrigerator A control unit (3) for controlling an electric household appliance, e.g. a refrigerator, is connected in series with a positive temperature coefficient (PTC) resistive unit (4) which, when supplied with electric current, generates sufficient heat to activ... | 12/09/2003 |
| 5320162 | Single pole double throw thermostat for narrow range temperature regulation A thermostat is disclosed having a bimetallic strip actuating a single pole, double throw switch, one throw to sense temperatures below the lower limit of a set point range and the other throw to sense temperatures above the upper limit of the set point r... | 06/14/1994 |
| 4775099 | Thermostatic control apparatus for operation between the heating and cooling mode There is disclosed a thermostat controlled apparatus which operates to control operation of a heating system and a cooling system in response to the temperature detected in a given environment. The thermostat has a pair of mercury switches which are coupl... | 10/04/1988 |
| 4525697 | Thermally responsive controller and switch assembly therefor A thermostat having a low force output, snap-acting thermally responsive bi-metal disc operative through a pushrod to move the blade of an SPDT switch at a pre-selected temperature. The switch has a cantilever blade formed of a unitary thin metal strip ha... | 06/25/1985 |
| 4420736 | Heating and cooling thermostat with limiting action selected by a single lever changeover switching apparatus A thermostat for controlling heating and cooling apparatuses has a temperature control point adjustment knob connected to a temperature responsive switch means for adjusting the control point thereof. A single lever changeover switch is connected to the t... | 12/13/1983 |
| 4414524 | Thermally responsive switch A thermally responsive switch is particularly adapted to perform a plurality of electrical control functions on an automotive engine in response to changes in engine temperature. The switch is characterized by a structure permitting the switch operating t... | 11/08/1983 |
| 4349807 | Heating and cooling thermostat with adjustable limits and methods of manufacturing and operating the thermostat A thermostat adapted to regulate the temperature of a given space. The thermostat has a mode selecting member which is movable between a heating mode position and a cooling mode position. A temperature setting member is selectively movable for setting a s... | 09/14/1982 |
| 4328407 | Heating system and control An electric heating system employs a control unit including means to connect a resistance heater to a three pole power source and a switch to switch the connections between full voltage and low voltage as temperature is more than or less than several degr... | 05/04/1982 |
| 4243967 | Thermostat and method of operating A thermostat adapted to regulate the temperature of a given space. The thermostat has a temperature setting lever movable between a plurality of temperature settings within a pair of temperature ranges and also a mode selecting lever movable between a hea... | 01/06/1981 |
| 4177860 | Heating and cooling thermostat with changeover switching operated upon control point adjustment A thermostat adapted for controlling heating and cooling apparatuses has a temperature control point adjustment means connected to a changeover switch means whereby upon the adjustment of the temperature control point adjustment means in a first range to ... | 12/11/1979 |
| 4112406 | Duplex thermostat A thermostat is provided for controlling a heating apparatus having two individually actuatable heating elements in order to more accurately control the heat output of the apparatus. The thermostat is designed such that at environment of temperatures belo... | 09/05/1978 |
| 4095740 | Condition responsive thermostat control apparatus An ambient room illumination responsive control automatically changes the setting of a thermostat with ambient illumination. A thermostat has a pair of temperature responsive switches connected in series with control leads and a controller to low voltage ... | 06/20/1978 |
| 4092624 | Thermostat assembly A thermostat assembly which includes therein two sets of thermostats connected in series with each other.... | 05/30/1978 |
| 4083397 | Heating-cooling control system Thermostat control of separate heating and cooling apparatus is achieved with a system that requires only a two-conductor connection between the thermostat and the apparatus. A pair of oppositely-poled diodes is employed at each end of one of the conducto... | 04/11/1978 |
| 4078601 | Heating and cooling thermostat with changeover switching operated upon control point adjustment A thermostat adapted for controlling heating and cooling apparatuses has a temperature control point adjustment means connected to a changeover switch means whereby upon the adjustment of the temperature control point adjustment means in a first range to ... | 03/14/1978 |
