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