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Document |
Document Title |
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7784291 |
Interactive control system for an HVAC system
An interactive system for controlling the operation of an HVAC system is provide that comprises a thermostat for initiating the operation of the HVAC system in either a full capacity mode of...
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7195178 |
Cooling ceiling
The invention concerns a cooling ceiling installation with at least one heat exchanger, a valve, which controls the flow of a heat transfer medium through the heat exchanger and a mechanical...
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7070117 |
Feedback apparatus for air-conditioning actuator for vehicle
A feedback apparatus for a vehicle air-conditioning actuator is provided. The feedback apparatus includes a cover plate including a thin plate resistor formed on the bottom thereof, a small case...
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6617815 |
Fan control circuit
The invention relates to a motor control circuit for a computer system fan motor, comprising a temperature sensor, a sensor amplifier, a fan command for applying a voltage to the fan motor...
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6456023 |
Method and apparatus to control a variable speed motor
A method for controlling an electronically commutated motor (ECM) using an air moving system including a controller and an interface board, the interface board electrically coupled to the...
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6152375 |
Remote control thermostat system for controlling electric devices
A remote control thermostat system for controlling electric devices for remotely controlling electric heating and cooling devices for regulating temperatures inside a structure. The remote control...
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4005726 |
Thermomagnetic valve
A hot fluid is directed through a valved conduit inlet. Downstream of the inlet, the conduit divides into a pair of outlets through which the hot fluid flows. The flow through the outlets is...
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3893504 |
Method for transferring heat
A medium passed from a high temperature system is cooled by the steps of retarding the normal rapid expansion of the medium while maintaining a relatively high velocity thereof while cooling same;...
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3801008 |
CLIMATIC CONTROL ESPECIALLY FOR ANIMAL BUILDINGS
The present invention involves a climatic control for ventilation of the roof of buildings, particularly animal buildings. The system involves a thermostatic switch which discriminates between...
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3705289 |
ELECTRONIC COPYING EQUIPMENT WITH CONTROLLED HEATER
A temperature varying resistor is in one branch of a bridge circuit. The voltage across the diagonal of the bridge controls the heater cut in and cut off under normal operation. The voltage across...
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3646813 |
CRYOGENIC-SENSING DEVICE USING URANIUM MONOPHOSPHIDE-URANIUM MONOSULPHIDE
The sensor of the present invention includes a solid solution of uranium monophosphide and uranium monosuplhide having a composition of UP1-x Sx where x=0.2 to 0.3. The uranium...
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3640455 |
AIR TEMPERATURE CONTROL SYSTEM
A multizone room air temperature control system comprises a thermostatically controlled louvered vent unit fitted to the mouth of the preexisting air duct register of the heating and...
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3630437 |
METHOD AND APPARATUS FOR REMOTELY CALIBRATING SENSOR INSTRUMENTS
There is disclosed a method and an apparatus for carrying out the method for calibrating the set-point of a control system comprising a sensor for providing a signal indicative of a variable...
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3517881 |
TEMPERATURE CONTROLLER
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RE12727 |
Title is not available
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3478532 |
ELECTRONIC HEAD PRESSURE CONTROL FOR CONDENSING UNITS
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3404945 |
CONDITIONING APPARATUS AND INDICATOR CONTROL THEREFOR
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3384800 |
Damper motor assembly
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3341121 |
Condition responsive control circuit and apparatus therefor
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3305176 |
Thermostatic unit
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3251548 |
Zone control for air heating, cooling and ventilating systems
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3225268 |
Protection circuit for control apparatus
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3216449 |
Modulating input control for a gas appliance
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3215347 |
Heat exchangers
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3203678 |
Temperature control system for rolls
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3190609 |
Control devices
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3186641 |
Control for vapor flow valve
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3170329 |
Temperature monitoring apparatus
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3167252 |
Thermostatically controlled motorized hot water valve sealed by fluid pressure
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3137475 |
Motor actuated valve
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3092977 |
Control apparatus for low temperature refrigeration system
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3090558 |
Spring loaded heat saving device
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3083327 |
Regulated control system
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3051432 |
Two-stage hydromotor-operated valve
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3050257 |
Means for operating a valve or the like in accordance with a controlled condition
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3042357 |
Motor operated valve
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3025446 |
Controlling motor for mechanical setting of regulating members in regulating systems
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3015963 |
Valve mechanism
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2997637 |
Positioning motor
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2985728 |
Recorder apparatus
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2977050 |
Thermoelectrically energized control apparatus
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2977437 |
Electrically actuated rotary valve for zone heat control
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2962718 |
Control devices
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2948118 |
Electromagnetic pump actuated device
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2849670 |
Follow-up control system
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2844946 |
Air conditioning device with reheat means
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2836639 |
Constant temperature device
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2783423 |
Shaded pole motor control apparatus
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