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6935571 |
Air diffuser
A diffuser comprising a casing ( 10 ), a first temperature sensitive element ( 32 ) for sensing room temperature variations and including a body and a piston which move relatively to one another in...
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6910340 |
Airflow control device
An airflow control device has a fixed damper element and a movable damper element. Shape memory wires are connected to the fixed damper element and the movable damper element. The shape memory...
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6871842 |
Hand winch handle with release feature that permits cable to wind off of winch drum without handle rotation
A hand winch that includes a drum for carrying a strand wound thereon and including gear teeth, a drive gear having teeth thereon mounted in a driving relation to the gear teeth of the drum, and a...
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6857577 |
Thermally powered VAV diffuser and control assembly
A thermally powered VAV diffuser assembly ( 21, 221 ) having a housing ( 42, 242 ) formed for coupling to a supply air duct or conduit ( 22, 222 ), a damper ( 24, 224 ) mounted across a supply air...
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6776349 |
Damper for controlling air flow through a passage
A damper for allowing some degree of air flow (winter ventilation) through a roof mounted, conduit to aid in preventing the growth of black mold in an attic while aiding in heat retention during...
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6330155 |
Method and apparatus for temperature control of electrical devices mounted on circuit boards
An enclosure for electronic equipment is constructed to orient a plurality of circuit boards in series of parallel slots with air-flow channels therebetween. Cooling air is delivered at constant...
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6254010 |
Air diffusers
An air conditioning diffuser is disclosed which includes two temperature sensitive elements. A first element detects room temperature and a second element ducting temperature. When room temperature...
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6250092 |
Actuator and method for controlling temperatures in a multiple compartment device
An actuator is provided for controlling temperatures in a multiple compartment device wherein the actuator includes a housing and a linear oscillator disposed within the housing. The linear...
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6209792 |
Thermally actuated diffuser
A thermally actuated diffuser for controlling room temperature without electrical apparatus. The thermally actuated diffuser includes a housing having a first duct opening and a second duct...
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6176435 |
Thermally powered diffuser
A thermally powered variable air volume diffuser is provided, comprising a diffuser housing and a thermally powered actuator assembly mounted therein which varies the size of a supply air discharge...
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6108203 |
Cooling system for a computer system having dual fans and a movable baffle
A computer system includes a housing that is divided into three compartments; two fan compartments, each containing a fan, and a third compartment containing heat generating electronic components....
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6012642 |
Drive mechanism for controlling a fluid flow
The cross-sectional flow area of a fluid duct and/or the flow direction of a fluid flow out of a fluid duct or air outlet is controlled by a control drive with two expansion drives positioned...
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5984196 |
Thermal rotary vent
An air vent that automatically opens and closes in response to changes in the ambient air temperature. The air vent includes a housing, a louver frame mounted to the housing and a series of vent...
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5957373 |
Automatic ventilator with manual override
A ventilator is selectively configured so that it can automatically open and close its louvers according to the temperature in its environment or have its louvers manually positioned in either the...
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5860592 |
Variable-air-volume diffuser with independent ventilation air assembly and method
A variable-air-volume (VAV) conditioning system having at least one diffuser (27a-27d) for discharging supply air (SA) into a room (22a-22d) a flow control element (53) movably mounted in the...
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5769159 |
Apparatus for opening/closing a radiating section by using a shape memory alloy
A radiating section opening/closing apparatus in an apparatus including a housing having a radiating section while enclosing a heat generating section has at least one heat transmitting section...
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5749780 |
Roof vent
A roof vent (8) comprises a conduit having an open entry end adapted for being arranged in sealing communication with an aperture in a roof surface, and an exit end spaced from said entry end,...
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5718628 |
Air conditioning method in machine room having forced air-cooling equipment housed therein
The cooling air generated from an air conditioner is supplied into an air passageway formed below the floor on which an equipment is disposed. The cooling air supplied to the air passageway is...
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5700192 |
Register with injector nozzle
A register of a forced air system to include an injector and a damper switch to regulate a thermostatic element for heated and air-conditioned airstreams. A direct drive mechanism to allow the...
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5682329 |
On-line monitoring of controllers in an environment control network
The present invention relates to a diagnostic system for use in a network control system. The diagnostic system is preferably utilized to analyze HVAC system or VAV box performance in an...
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5673851 |
Variable-air-volume diffuser with induction air assembly and method
A variable-air-volume (VAV) conditioning system having at least one diffuser (27a-27d), a flow control element (53) movably mounted for control of the volume of supply air (SA) discharged from the...
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5647532 |
Air diffuser
An air conditioning diffuser is disclosed which includes two temperature sensitive elements. A first element detects room temperature and a second element ducting temperature. When room temperature...
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5611212 |
Refrigerator dual air flow control mechanism
A control mechanism for simultaneously supplying air to a refrigerated compartment in two separate air streams includes a housing having an inlet communicating with first and second outlets. A...
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5556335 |
Thermally controlled diffusers
A thermally controlled diffuser comprises a means for connecting the diffuser to a duct, a divergent outlet, a means for deflecting flow from the divergent outlet, and a means for supporting the...
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5505379 |
Forced air register with louver control and method of construction thereof
The present device is a movable-louver heating and cooling register. The register is designed to have the same overall dimensions of commercial registers available today. The heating and cooling...
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5476419 |
Thermally actuated heating/cooling air changeover deflector structure for a ceiling diffuser
A thermally actuated deflector structure for automatically varying the air discharge pattern of a ceiling diffuser in response to a sensed change in the temperature of air being delivered to the...
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5446677 |
Diagnostic system for use in an environment control network
The present invention relates to a diagnostic system for use in a network control system. The diagnostic system is preferably utilized to analyze VAV box performance in an environmental control...
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5366149 |
Method and apparatus for converting a fixed-opening air diffuser to an individually-controlled variable air volume diffuser
An apparatus and method for converting a fixed-opening air diffuser (21) to an individually-controlled variable air volume diffuser. The fixed-opening diffuser (21) includes a diffuser housing (26)...
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5346130 |
Thermally responsive air diffuser
A thermally powered change over diffuser for controlling the flow orientation of air discharged from a ceiling mounted duct outlet includes a pair of vanes pivotably mounted on a platform for...
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5294049 |
Power temp vent duct system
An adaptable, temperature-responsive, powered-fan, foundation ventilator apparatus includes a louver housing defining an air passageway, construction for selectively opening and closing the louver...
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5289094 |
Light responsive airflow register
An airflow register for an air conditioning system for an enclosure such as room within a house or an office within a building. The register includes a series of louvers which can be located in...
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5253804 |
Temperature and humidity sensitive high efficiency exhaust ventilator apparatus
A temperature and humidity controlled fan for ventilating a building foundation including a housing mounted in the foundation wall. The housing includes the fan and a temperature responsive ganged...
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5022583 |
Register blade mover
An actuator mechanism for automatically changing and adjusting the orientation of air discharged from the register of an air distribution system solely under the variation of the supply air...
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4962882 |
Ventilator
A ventilator opens and closes itself according to the temperature in its environment through the use of a bimetallic coil spring which acts through a drive element and linkage elements to open and...
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4875624 |
Air conditioner system for automotive vehicle
An air conditioner system for automotive vehicles includes an air flow direction setting unit for adjusting direction of the conditioning air discharged from a vent nozzle. The air flow direction...
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4874127 |
Climate control apparatus
A multi-level access flooring system having a work area floor and at least one intermediate floor, defining at least one isolated wireway between the intermediate floor and the work area floor, and...
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4872397 |
Personal environmental module
A personal environmental module for controlling the environment in a work space, the module including a housing having an air inlet and a pair of air outlets, a pair of dampers mounted in the air...
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4848653 |
Ridge vent with shape-memory actuated heat valve
An improved actuator for the damper of a ridge vent. The actuator includes coil springs constructed from a shape-memory alloy. The springs are contracted below a selected temperature at which the...
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4834283 |
Automotive air conditioning system
A damper position control device for an automotive air conditioning system having a lock release mechanism for the drive shaft of a motor which controls the angular position of an air mix damper. A...
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4834282 |
Device for use with flue dampers
A device is provided for controlling the position of a damper within a flue or stack of a forced air heating or cooling system or a commercial or industrial boiler. The device comprises a damper...
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4830274 |
Pressure independent VAV valve with pressure dependent backup
A pressure independent variable air volume valve (VAV valve) functions as a pressure dependent valve upon detecting a malfunctioning airflow indicator. Under normal operating conditions, the VAV...
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4830095 |
Temperature control system for air conditioning system
A temperature control system for an air conditioning system that services plural zones provides priority of one or more selected zones of the conditioned air flow relative to the other unselected...
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4821955 |
Thermally-powered active master and passive satellite air diffuser system
A thermally-powered active master and passive satellite or slave diffuser system is disclosed. The system includes a master diffuser (24) with a displaceable damper assembly (41) mounted in the...
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4819868 |
Electromechanical device associated with thermoactuators for use in vehicle climate control and air conditioning systems
An electromechanical device for vehicle climate control and air conditioning systems. The valves in said systems are actuated by one or more plungers incorporated in electrothermoactuators...
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4817912 |
Bi-metal operator for smoke, fire and air control damper
A damper operator for use with a damper having a frame and a damper blade pivotally associated with the frame, which damper operator comprises a bi-metallic element provided with a heating pad...
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4807444 |
Air flow control device
An air flow control device for an air conditioner includes a compressor, an outdoor side heat exchanger, expansion means and a room side heat exchanger in sequence, wherein the improvement...
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4754696 |
Ventilator with adjustable installation means
An automatic temperature responsive ventilator including a housing having side walls defining an air passageway and an openwork grid across the passageway. At least one shutter is mounted within...
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4730771 |
Air duct
This invention provides a device for meeting the demand of a forced-air furnace for make-up air in a building, the make-up air being available from a duct leading from outside the building. The...
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4715532 |
Adjustably resettable, temperature-responsive automatic ventilator
An automatic temperature responsive ventilator including a housing having side walls defining an air passageway and an openwork grid across the passageway. At least one shutter is mounted within...
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4699314 |
Actuator for a heating/cooling diffuser
A diffuser is provided with three discharges. Two of the discharges are directed in one direction and, when installed, would be directed towards the outside wall of the conditioned space. The other...
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