Matches 1 - 50 out of 54 1 2 >


Match Document Document Title
8986088 Negative-pressure smoke-guiding fireproof building structure  
A negative-pressure smoke-guiding fireproof building structure includes at least one vertical smoke discharge flue arranged in the building and in fluid communication with a transverse smoke...
8842000 Fire control systems  
Systems and methods for controlling a system of fans in a facility from a central system controller are disclosed herein. In one embodiment, the system of fans can be configured to shut down...
7882897 Device for limiting the ultimate consequences of a failure to bring under control a mass fire in a storage bin for hazardous materials  
The device of the present invention is located in a closed containment enclosure surrounding a storage bin and comprises a closed tank (28) positioned on the storage bin containing a liquid (26)...
7210995 Roof air make-up for exhaust of fire smoke  
A system for introducing make-up air into a building from above the roof for smoke control includes air shafts extending from the roof into a space in the building below a layer of smoke. The air...
6835114 Grinding tool for buttons of a rock drill bit  
The present invention provides a grinding cup having a lower grinding cup having a lower grinding section (32) connected to form a grinding cup having top and bottom surfaces. The grinding section...
6832952 Methods and apparatus for storing and delivering air to buildings  
Methods and systems are provided for enhancing the air quality in buildings during a chemical and/or biological attack and/or when the air quality around a building drops to unacceptable levels....
6776708 Smoke extraction system  
The invention discloses a smoke extraction system 10 provided with an infrared smoke detector 16, infrared thermostat 18, A/C sensor 38 and transition door 20. When the smoke detector 16 detects...
6746325 Heat distorting support clip for air handling luminaire  
An air handling luminaire having a light diffuser, louver, or lamp shield made of a flammable material and mounted within a luminaire housing. Integral with the luminaire housing is a heat...
6632134 Building fire extinguisher system  
A building fire extinguisher system for promptly removing smoke and flammable gases from a room upon detection of a fire. The building fire extinguisher system includes a vacuum unit, a housing...
6478672 Method and device for extracting fumes and heat and for providing operational for traffic structures and enclosed traffic spaces  
The invention relates to a method and a device for extracting fumes and heat and for providing operational ventilation for traffic structures and enclosed traffic spaces. The inventive system for...
6474086 Air conditioner having functions of fire preventing, smoke exhausting and water spraying  
An air conditioner having functions of fire preventing, smoke exhausting and water spraying includes a sensor for sensing smoke or temperature so as to control operation of a wind-releasing gate,...
6102793 Ventilation system  
A ventilation system connected to a source of power for sensing a condition of air in an area monitored by said system and exchanging the air with fresh air upon sensing said condition. The...
6071189 Air circulation system and method with return duct ventilation  
An air circulation system with standard and dual mode operations rapidly ventilates an enclosed area with fresh external air in the dual mode. In the dual mode of operation of the preferred...
6053809 Smoke detection and ventilation system  
A system for detecting the presence of smoke within a building and providing means to remove the smoke, into the airspace above the ceiling thereby preventing or at least alleviating smoke...
5957212 Installation for fighting fire  
The object of the invention is to provide a new installation for fighting fire, which is effective in restricting damages caused by smoke generation. A sprinkler (6) or a spray head is arranged in...
5855510 System for exhausting smoke and controlling fires within a building  
A system for exhausting smoke from a building. The building has a roof, exterior walls and at least one room therein where smoke has accumulated. The system comprises an actuable compressor...
5788571 Method of venting smoke from highrise residential buildings  
In highrise residential buildings, venting to remove smoke from corridors is required in case of fire. A method of venting smoke from a multi-floor building by providing a single supply and...
5779537 Deposit cupboard for solvents, combustible liquids and the like  
A deposit cupboard (1) for solvents, combustible liquids and the like, comprises shelves (2) and at least one door. The cupboard is assigned an air intake holes (20) and an exhaust device (5), and...
5722885 Air moving system  
A jet fan arrangement for ventilating tunnels and the like in which the axis of the fan is positioned at an angle to the supporting surface so as to blow air away from the supporting surface. When...
5702299 Method and installation for removing smoke from a monitored space  
In a space (1) and an installation for fighting a fire in the space, and further including a shower room (3), a through-wall opening into the shower room from the space and at least one...
5634847 Fire Retardant reinforced plastic duct system  
Fiberglass reinforced plastic fume exhaust systems include duct walls having apertures therein covered with meltable thermoplastic resins mounted thereon which melt and open up the apertures when...
5449320 Collapsible duct coupling  
Fiberglass reinforced plastic duct exhaust systems including sections of the duct system joined together by collapsible collar plastic joints having low melting points which collapse or drop-out...
5360372 Control system for doors of a negative air pressure enclosure  
A decontamination chamber entranceway to an asbestos removal work area includes rigid swinging doors for a rapid escape from the contaminated work area due to an emergency such as a fire or smoke....
5178581 Smoke evacuation system  
A smoke evacuation system for a building made of modular units includes sets of modular units disposed to each other and joined by a wall so as to allow a space between the modular units to define...
5123875 Power actuated roof vent apparatus and method of use  
A power actuated roof vent apparatus generally comprises an insulated air passageway housing through the roof which allows a linear and unrestricted air flow through the air passageway housing...
5033360 Air quality control system  
An air quality control system for buildings with units, public corridors and an elevator shaft, has means for partitioning the public corridors into zones. Each of the zones have a first end in...
4977818 Air flow control system  
An air flow control system for controlling the air flow within a building having closable vents for venting the air out the building comprising sensors for detecting fire, smoke, gas, or high heat...
4944216 Building emergency exhaust fan system  
A process, for emergency use only, to exhaust smoke and gas from a fire source in the stationary structure of a building with a fan induced exhaust draft at or near the fire source. Actuation of...
4858517 Fire damper kit  
A fire damper kit is set forth wherein a fire damper box is formed with a first framing angle iron fixedly secured thereto with a second angle iron slidable thereon to secure said damper and...
4827154 Control system for air cleaner  
A system for controlling an air cleaner having high ability to remove smoke but low ability to remove gas with use of a gas sensor having higher sensitivity to gas than to smoke. The air cleaner...
4805519 Control system  
A system for controlling the operation of a plurality of dampers serving ventilation apertures in the structure of a building, which system comprises a plurality of actuators, one or more to be...
4805835 Methods and apparatus for the control of smoke and fire in buildings  
Smoke and fire control devices and systems are disclosed, including smoke control devices which are responsive to smoke to evacuate smoke and also responsive to elevated temperatures to terminate...
4765231 Smoke exhausting air conditioning system  
Harmful smoke is drawn from rooms in an air conditioned building by way of duct work which supplies conditioned air to the rooms during normal operation. When a potentially harmful level of smoke...
4703808 Smoke eliminator  
A smoke eliminator for removing smoke, heat and combustion gases from a burning structure. The smoke eliminator includes a heat-resistant rigid tube having an adapter attached to one end for...
4662268 Combination purging and ventilating blower  
A blower which is specifically designed not only to purge a workplace of foul air preparatory to it being entered by personnel but also to provide these people with adequate ventilation once they...
4649808 Fireplace damper assembly  
A damper assembly for sealing a vertical fireplace exhaust including a vertical duct having an outlet communicating with the atmosphere for exhaust of fireplace fumes, mounting means mounted on...
4472999 Damper operator for use with air, smoke and fire dampers  
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 drive rod; a pair of lever arms which are pivotally...
4432272 Motor operated fire damper  
A fire and smoke damper having an electric motor coupled with the damper to hold the damper blades open when the motor is energized. A spring associated with the motor provides torque for closing...
4412477 Arrangement to counteract or prevent spreading of fire or smoke  
An arrangement to counteract or prevent spreading of fire, smoke or undesired gases through at least one passage, such as a ventilating duct, in a building. Said arrangement comprises a device...
4380187 Method and system for providing life-sustaining air to persons entrapped within a burning building  
The present invention provides a method and system for providing air to persons entrapped within a burning structure to sustain life until rescuers arrive. The system advantageously utilizes...
4176587 Ventilating damper assembly  
A ventilating damper assembly particularly adapted for use in conjunction with an evaporative cooler system for architectural structures includes a duct inserted into the ceilings of rooms cooled...
4058253 Method and apparatus for conservation of energy and containment and evacuation of smoke in a high rise building  
Apparatus is provided for use in the method of conserving energy by operating a ventilating and air conditioning system in a high rise building in a manner to permit operation of a heating and...
4054084 Fire and smoke free system for high rise building stairways  
A fire and smoke free stairway in the event of fire in high rise buildings can be maintained by developing a velocity pressure of air through the fire doorway, from the fire stairway each time the...
3934494 Power ventilator  
Disclosed is a power ventilator attached to a roof for ventilating an attic or the like. The power ventilator is provided with a base which attaches to the roof adjacent an opening in the roof....
3829010 THERMOSTAT FOR POWER VENTILATORS AND THE LIKE  
A thermostat for use with a power ventilator which responds to attic or inside temperatures to actuate a motor turning a power ventilator, said thermostat incorporating a first means which is...
3826180 VENTILATION FAN SYSTEM WITH SMOKE DETECTOR SPEED CONTROL  
This invention relates to a ventilator wherein an electronic circuit is actuated when a detecting element detects the existence of any smoke or gas while a fan is in a manually selected slow...
3818816 TRAPDOOR FOR SMOKE EDUCTION  
The trap-door comprises a wall provided with a communication opening edged by a rabbet in which is included a frame, at least lower side thereof being inclined downwards to delimit a sliding plane...
3817161 SMOKE PROTECTION SYSTEM  
A smoke protection system for high rise buildings supplies a level of the building filled with smoke from a fire with air so as to displace the smoke from the building and reduce the hazard of...
3770346 METHOD AND APPARATUS FOR FUSER ASSEMBLY COOLING IN AN ELECTROSTATOGRAPHIC MACHINE  
An assembly is provided having elongated slot disposed about the vicinity of a fuser assembly including a fuser roller. The gaseous medium about such vicinity is caused to be vented to the...
3396652 Ventilating skylight with heat vent  

Matches 1 - 50 out of 54 1 2 >