Patents for G05D 23 - Control of temperature (28,546)
03/1977
03/15/1977US4011734 Cryogenic pressure regulator
03/08/1977US4011430 Multizone electrical furnace methods and apparatus
03/01/1977US4010486 Sensing circuits
03/01/1977US4009825 Control for forced air heating or cooling system
03/01/1977US4009750 Apparatus for controlling the cooling of a strand emanating from a continuous casting mold
02/1977
02/15/1977US4008387 Automatically controlled crystal growth
02/15/1977US4007873 Pneumatic thermostat
02/08/1977US4007425 Temperature sensor using pulse width modulator for duty cycle control
02/08/1977US4006596 Cooling-water supply system with self-adjusting hydraulics
02/01/1977US4006393 Motor control system using a heated member to provide modulation
02/01/1977US4005821 Thermomechanical vacuum regulator using bimetallic position sensing
02/01/1977US4005726 Thermomagnetic valve
01/1977
01/25/1977US4004462 Temperature transducer
01/18/1977US4003729 Air conditioning system having improved dehumidification capabilities
01/11/1977US4002882 Heating circuit
01/04/1977US4000849 Temperature responsive valve
01/04/1977US4000848 Regulating drive, especially for a thermostatically controlled valve shaft
01/04/1977US4000663 Damper actuator
12/1976
12/28/1976US3999708 Freeze element for A/C throttling valve
12/28/1976US3999598 Water temperature regulator
12/21/1976US3998384 Pneumatic thermostat aspirator
12/21/1976US3998207 Differential temperature controller for use in a solar energy conversion system
12/21/1976US3998146 Frying apparatus with compensated thermostat
12/14/1976US3996998 Combination furnace--heat pump unit
12/07/1976US3995810 Temperature compensation control
11/1976
11/30/1976US3994164 Apparatus for the determination of the thermal efficiency of chemical reactions
11/23/1976US3993120 Space thermostat
11/02/1976US3989926 Device for preventing overheating of electrophotographic fixing device
11/02/1976US3989058 Modular valve
10/1976
10/26/1976US3987642 Control valve for vehicle air conditioning systems
10/19/1976US3987318 Adjustable temperature actuated switching apparatus
10/19/1976US3986489 Solar energy transfer system with protection against freezing
10/12/1976US3985712 Programming
10/05/1976US3984611 Method of and apparatus for monitoring for incipient electrode failure in the Joule effect heating of heat softenable material
10/05/1976US3983930 Temperature control system and multifunctional servomotor therefor
10/05/1976US3983928 Dual temperature thermostatic controller
09/1976
09/28/1976US3983430 Electric generator
09/28/1976US3983359 Electrical fluid heater
09/21/1976US3982163 Temperature sensitive electronic switching arrangements
09/21/1976US3982098 Heater and control system
09/14/1976US3980229 Temperature controlled regulator
09/07/1976US3979710 Apparatus for adjusting and indicating the operating curve of a weather-responsive heating regulator
09/07/1976US3979708 Thermostat and anticipator therefor
09/07/1976US3979129 Valve construction and improved parts for the same or the like
09/07/1976US3979060 Automatic multiple unit control apparatus
09/07/1976US3979059 Systems for controlling the temperature within an enclosure
09/07/1976US3979056 Multi-product cooking computer
08/1976
08/31/1976US3977600 Temperature responsive fluid flow regulator
08/31/1976US3977387 Temperature-controlled oven
08/31/1976US3977207 Freeze throttling valve
08/24/1976US3976925 Integral motor controller
08/24/1976US3976245 Automatic, temperature responsive damper assembly
08/17/1976US3975669 Electronic damper motor control
08/17/1976US3975620 Control system for charging and discharging an electric storage heater
08/17/1976US3974844 Valve
08/10/1976US3974472 Domestic appliance control and display panel
08/10/1976US3974427 Motor control apparatus for three position valve
08/10/1976US3974426 In-line energization and de-energization of an external load in series with an external source of electricity in response to externally sensed parameters
08/10/1976US3973938 Method for temperature control of refrigerating machines operating with thermoelectric modules
08/10/1976US3973729 Vent valve arrangement
08/10/1976US3973728 Thermal sensor
08/03/1976US3973102 Heating and temperature control device for a bath-liquid
08/03/1976US3973101 Electric air heating furnace
08/03/1976US3972472 Thermostatically responsive valve
08/03/1976US3972471 Automatic temperature setback system for controlling a heating unit
07/1976
07/27/1976US3971876 Temperature control apparatus
07/20/1976US3971056 Semiconductor temperature switches
07/20/1976US3970818 Method and apparatus for a thermistor compensated oven
07/13/1976US3969611 Thermocouple circuit
07/13/1976US3969098 Control apparatus and system for closely spaced heating elements
07/13/1976US3968832 Apparatus for controlling the temperature of a heat exchange liquid
07/06/1976US3967781 Electrically operated expansion valve for refrigeration control
07/06/1976US3967545 Controlling the supply of electric current to a room
06/1976
06/29/1976US3967172 Control circuit, refrigeration system, and method of controlling speed of an alternating current motor
06/29/1976US3966354 Thermal actuated valve for clearance control
06/22/1976US3964677 Energy conserving thermostatic control
06/22/1976US3964676 Electronic morning start-up control for a building temperature control system
06/15/1976US3963177 Thermostatic control valve for a one-pipe steam system
06/08/1976US3962559 Temperature control circuit and oven
06/08/1976US3961749 Multiple port multiple temperature thermally responsive valve
06/08/1976US3961606 Thermally responsive fluid control valve
06/01/1976US3961237 Modulating electronic room thermostat
06/01/1976US3960321 Temperature responsive valve
05/1976
05/25/1976US3959692 Monitor and controller for heating a resistive element
05/25/1976US3959621 Thermally sensitive switch device
05/25/1976US3959524 Coating with a suspension of zirconium dioxide and zirconium boride, drying, firing
05/25/1976US3958628 Vertical blower coil unit for heating and cooling
05/18/1976US3958101 Space heating using off-peak electric heat storage
05/18/1976US3958100 Means for preventing heat build-up in a wall-mounted room ventilator
05/18/1976US3957107 Thermal switch
05/11/1976US3956713 Astable multivibrator having adjustable pulse width at constant frequency
05/11/1976US3955760 Thermostatic air valve
05/11/1976US3955759 Thermostatic mixer for hydraulic systems
05/11/1976US3955595 Automatic fluid flow regulator
05/04/1976US3955067 Fat frying timing system
05/04/1976US3955066 Temperature regulation of heating cylinder
05/04/1976US3954222 Water mixer
04/1976
04/27/1976US3953783 Low cast chopper inverter power supply and gating circuit therefor
04/27/1976US3953741 Stepwise control for two-step control with switching stages
04/27/1976US3952947 Heating and ventilation system