Matches 51 - 100 out of 140 < 1 2 3 >
Match Document Document Title
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...
4699045 Housing for foundation ventilator  
The housing of a foundation ventilator has the usual front screen to protect the louvres within the housing, but the screen is part of a support frame used to mount the ventilator in an opening in...
4697736 Automatic damper assembly  
An automatic temperature responsive damper assembly for use within the conduit of a ventilating system designed to exhaust the air from a confined space to the atmosphere when the confined space...
4646531 Refrigerator temperature control apparatus  
The refrigerator temperature control apparatus includes a damper in a cooled air outlet to a storage chamber. The damper is controlled by means of electromagnets with a temperature detecting portin...
4605162 Emergency ventilator opener for livestock houses  
A ventilator opener for a livestock house having an electrically powered fan for ventilation utilizes a tubular electrical heater, connected to the same power source as the fan, to heat an...
4591092 Energy saver damper assembly  
An energy saver automatic temperature responsive vent, for permitting the passage of air from one defined space to another, which includes a frame for mounting over an opening extending from one...
4570850 Modular ceiling air control device  
An air control device includes a housing having an inlet and an outlet with fixed and movable plates extending across the inlet that both have indentically configured and spaced openings. The...
4546919 Ventilator actuator  
A ventilator actuator is provided for opening and closing a ventilator opening having a diaphragm secured to a closure member mounted for pivotal movement about an axis to form a reservoir for a...
4541326 Discharge direction control device for air conditioner  
The disclosure is directed to an air flow direction control device for an air conditioner such as a room air conditioner, which includes a discharge direction changing blade for controlling air...
4537347 Bi-directional air diffuser  
A linear air diffuser is provided with one discharge opening regulated by a single, longitudinally pivotable blade and a thermally powered, self-contained control mechanism to preferentially orient...
4535932 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...
4523713 Thermally actuated diffuser  
An improved thermally actuated diffuser is disclosed. The diffuser comprises three thermal sensor actuators. A first thermal sensor actuator is responsive to changes in the room air temperature and...
4509678 Thermally-powered control mechanism  
A room air diffuser control mechanism is provided which is operated by two thermally powered thermostatic actuator elements, one reacting to the room air temperature, and the other reacting to the...
4506825 Solenoid operated damper blades  
Solenoid motor means for operating a multiple blade damper device; said blades being pivotally mounted in a common housing; said housing being constructed to reside in an open ended duct boot that...
4497436 Venting system for insulating window shade  
An insulating window shade assembly having a roll up shade which covers the window, seals about the shade to increase the effectiveness of the insulation provided by it, and venting means at the...
4497241 Device for automatically adjusting angle of louver  
A louver is pivotally secured to a body in an air passage formed between side walls for altering the diffusing direction of diffused air. A device for changing the angle of the louver comprises a...
4493456 Temperature-responsive automatic ventilator  
An improved foundation ventilator assembly including a housing in which united shutter elements are mounted for pivotal movement between an open and closed position to control air flow through the...
4491270 Thermally actuated diffuser  
An improved thermally actuated diffuser is disclosed. The diffuser comprises four thermal sensor actuators. A first thermal sensor actuator is responsive to changes in the room air temperature when...
4445637 Air register with automatic zone control  
An air register for distributing air to a room has a thermally responsive actuator element in direct contact with a pivotably mounted closure slat for controlling the flow of air through the...
4413774 Direct drive air register damper  
The present invention is concerned with an improved automatic, direction drive damper device constructed for installation over the terminal openings of furnace duct boots residing within room...
4369766 Solar heating and shading window having automatic temperature-responsive damper system  
Spaced exterior and interior windows define a solar plenum having communication with one isolated chamber of an adjacent dual chamber bay, the second chamber of which is in communication with the...
4361272 Thermal damper for rectangular flue  
A thermally responsive damper for operation in a rectangular ventilation duct.
RE30953 Thermally actuated diffuser  
A diffuser for a conditioned air system for buildings incorporates a self contained and integrated sensor actuator for varying the volume flow of conditioned air through the diffuser in response to...
4328927 Temperature responsive ventilator construction  
An improved temperature-responsive wall ventilator construction comprising a housing having side walls defining an air flow passageway, a plurality of louvers disposed in said passageway and...
4304220 Solar collector  
Disclosed herein is a tube type solar heating device in which room air is circulated through tubes located exteriorly of the building and confined in an enclosure having a reflector. The...
4290554 Temperature actuated foundation ventilator  
A temperature actuated foundation ventilator comprises a rectangular housing with top, bottom and side walls, air permeable screens on the front and rear walls, a plurality of louvers extending...
4281592 Double induction unit  
An air induction unit having a first induction means to induce secondary air through a first induction opening into a stream of primary air to produce an air stream of mixed primary and secondary...
4280481 Forced-air heat exchange system  
The present forced-air heat exchange system has a solar collector through which air is circulated by a blower to the air inlet of a heat exchanger. The heat exchanger has an air outlet connected to...
4273283 Automatic air register  
There is provided a self-regulating air register which includes a housing, louvres in the housing for closing and opening a flow path for air, a crank arm connected to the louvres which can, upon...
4243175 Temperature regulated wall ventilator construction  
An improved temperature regulated wall ventilator comprising a housing defining an air flow passageway therethrough, a plurality of louvers mounted in side by side relation in the housing...
4233779 Automatic environment stabilizer and protection device for plants  
An attachment for a plant protection device is described that automatically maintains a life sustaining environment over a broad range of ambient temperature conditions. The invention consists of a...
4231514 Automatic ventilator  
An improved wall ventilator for use in building constructions comprising a housing having a peripheral wall member defining an air flow passageway, a first louver section comprising a fixed panel...
4223832 Damper for an air distribution system  
A damper assembly for an air passage. A damper assembly includes a disk element associated with a circular orifice of an air passage, and an actuator having an associated drive element. The disk is...
4219009 Vented solar panel  
A solar panel having venting gates at opposite ends of an air plenum defined between a collector element and a protective, light-transmissive cover and having a wax thermal actuator for both the...
4210279 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...
4210277 Automatic roof ventilator  
An automatic temperature responsive assembly for ventilating through a roof a confined space to the atmosphere whereby heat buildup in the confined space may be released from the confined space or...
4208010 Ventilator assembly  
A foundation ventilator assembly that includes a housing in which are received at least one, and preferably a plurality of pivotal louver type elements that may be moved from an open to a closed...
4182487 Apparatus having a temperature sensitive element for controlling a damper in a ventilation system  
This invention relates to a ventilation system for buildings and comprises for use at a venting duct outlet (opening into the outdoor atmosphere or into a room) a movable duct closing means and a...
4177970 Valve assembly for use in an air distribution system  
A valve assembly is disclosed for use in an air distribution system which includes a plenum chamber (2a, b) having an inlet opening (4) and an outlet (5). Conduit means are provided for admitting...
4175480 Wall ventilator construction  
An improved ventilator construction for use in masonry wall openings to ventilate interior spaces of a building, such as a basement or crawl space of a home, wherein the ventilator construction is...
4155504 Thermostatic ventilator actuator  
A thermostatic ventilator operator has a thermostatic actuator consisting of a pair of tubes telescoped together with a plurality of thermally responsive power elements arranged coaxially therein....
4150785 Temperature controlled gable vent  
A solar heat augmented heating system is disclosed in which a solar heat chamber located in an attic is employed selectively to supply heat to the heating system which heats the occupant space,...
4147299 Air flow system for a disk file  
An air flow system for a disk file is disclosed in which air is pumped under pressure past the disk surfaces to remove contaminants and past a voice coil actuator to cool the motor and returned to...
4130132 Constant volume regulator with adjustable load means  
Air control regulators include automatically operated air curtains in which pressure and volume vary depending upon demand. A lever and fulcrum principle is used in this controller with the fulcrum...
4125222 Solar heat augmented heating system and temperature responsive gable vent  
A solar heat augmented heating system is disclosed in which a solar heat chamber located in an attic is employed selectively to supply heat to the heating system which heats the occupant space,...
4123001 Automatic ventilator  
An automatic temperature responsive damper assembly for use within the conduit of a ventilating system designed to exhaust the air in a confined space to the atmosphere whereby the conduit may be...
4115677 Induction heating apparatus  
An induction heating apparatus includes an inverter circuit, a plurality of output coils for induction heating, a coil selection circuit for selectively connecting the output coils to the output...
4047662 Terminal unit for the outlet of conditioned air in a centralized conditioning system  
A variable flow, modular-type terminal unit for conditioning rooms in a centralized conditioning system is provided with means for controlling the conditioned air flow arranged within the outlet...
4046134 Solar heater with automatic venting  
An apparatus for collecting solar energy wherein a heat exchange array of plastic or the like is protected against damage by excessive heat buildup. The array is housed in a normally closed chamber...
4005547 Thermally responsive ventilated cold frame  
A cold frame for providing an environment conducive to the growing of plants having walls and a flexible, light-transmitting cover member which is flexed to form a ventilation opening. The cover...
Matches 51 - 100 out of 140 < 1 2 3 >