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7530402 |
Water column supervisory switch
A water column supervisory switch having a probe arrangement and probe circuitry for detecting the presence of a conductive medium that has reached a predetermined level above a clapper valve...
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7395868 |
Apparatus for blocking a medium flow passage in a spray head, and spray head
An apparatus for blocking a medium flow passage in a spray head has a blocking element in the passage that, when unbroken, blocks the passage of medium from a first side having a first pressure to...
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7363987 |
Sprinkler system for converting non-sprinklered buildings
In the system or method for sprinklering a building, the building has a water delivery pipe for delivery of water to at least two different floors of the building. On at least two floors, a...
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7322423 |
Dry pipe valve for fire protection sprinkler system
A fire protection system comprises a supply pipe having a first fluid pressurized to a first pressure and a network of pipes having a plurality of sprinklers. The network of pipes have a second...
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7240740 |
Diaphragm valve with pivoting closure member
A valve is disclosed having an inlet duct aligned with an outlet duct and an angularly oriented elliptical seat positioned between them. A pressure chamber faces the seat. A pivoting valve closure...
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7237619 |
Automatic fire sprinkler having a variable orifice
An automatic fire sprinkler having a variable orifice, the sprinkler having a variable orifice associated with the automatic fire sprinkler, and wherein the orifice is responsive to the water inlet...
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7104333 |
Dry pipe valve for fire protection sprinkler system
A differential-type dry pipe valve for a fire protection sprinkler system has a ratio of effective air sealing area to service water sealing area that is smaller than a ratio of service water...
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7017673 |
Sprinkling head for fire fighting systems
A sprinkling or spraying head, for fire fighting systems, comprises a nozzle holder cap which is removably coupled to the body of the sprinkling head and comprises a plurality of nozzles designed...
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6889912 |
Method and apparatus for removing trapped water
An apparatus and method for clean, efficient removal of water and odor from a sprinkler systems including a vessel, a pump which creates a reduced pressure in the vessel, and a connector for...
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6860331 |
Single-piece manifold
A single-piece manifold for use with a residential or other building sprinkler system is disclosed which comprises a body having an inlet in communication with a water supply and an outlet that...
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6848513 |
Fire protection valve trim assembly system
A trim assembly for a fire protection system valve includes a mounting member and a piping assembly supported by the mounting member. The piping assembly includes a priming line with an inlet for...
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6708772 |
Container valve with tripping device for stationary fire extinguishing plants
A container valve for fixed fire extinguishing systems comprises a valve body ( 12 ), a closure piston ( 26 ), one sealed end of which is introduced into the release chamber ( 24 ) and the opposite...
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6637519 |
System and method for extinguishing a fire
A system and method for extinguishing or controlling a fire. The system has a source of a substance which is usable to extinguish a fire in a prescribed area, a control system, and an activation...
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6581694 |
Method and system for controlling the supply of nitrogen to electrical power handling equipment
A system that controls nitrogen pressure in the ullage of a power transformer that has its windings submerged in oil. The pressure is controlled in a narrow range of approximately 0.5 psi to...
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6564877 |
Automatic valve with manual override for fire engine high pressure water system
An apparatus and method for releasing pressure and draining a high pressure water system includes a valve comprising a valve body having an inner cavity for water to flow therethrough, an inlet...
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6415870 |
Wet type sprinkler system
The invention provides a wet-type sprinkler system by which the water damage caused when a sprinkler heads function in a wrong way with ensuring a quick extinguishing operation at the time of fire....
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6357531 |
Virtual accelerator for detecting an alarm condition within a pressurized gas sprinkler system and method thereof
The virtual accelerator is for detecting an alarm condition within a pressurized gas sprinkler system. It has a pressure monitor for monitoring pressure within the pressurized gas sprinkler system,...
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6279663 |
Nozzle and fire fighting installation
The invention relates to a nozzle, preferably for use in sprinklers and spray heads, for spraying extinguishing medium, the nozzle comprising a housing (7), an inlet end (1) and a first conduit (2)...
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6068205 |
On-off control for sprinklers and the like employing a sealing membrane
In an automatic on-off sprinkler, water enters an inlet and passes through a hollow interior region to the outlet. A reciprocating member in the hollow region normally blocks the outlet when water...
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6068057 |
Dry pipe valve system
In the dry pipe sprinkler valve arrangement disclosed in the specification, a dry pipe sprinkler line is normally supplied with air at a pressure in a range from about 5 psi to about 20 psi and is...
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5967239 |
Fire-extinguishing device with a fire-extinguishing fluid
A fire extinguishing device activates fire extinguishing nozzle-heads in multiple locations in response to fire-induced activation of one of the fire extinguishing nozzle-heads. The fire...
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5954138 |
Fire extinguisher valve and fire-extinguishing equipment
The fire-extinguishing device proposed includes a container, holding a gas under pressure, and a fusible hollow element designed to actuate the device. The fusible hollow element is connected to...
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5927406 |
Fire protection installation involving a normally dry network of sprinklers
A fire protection installation of the type comprising a normally dry network of sprinklers is, whenever the dry network of sprinklers is put to atmospheric pressure due to said network of...
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5899275 |
Inert gas fire fighting system and pressure control valve for inert gas fire fighting system
An inert gas fire fighting system is designed to extinguish fire by discharging inert gas fire extinguisher stored in a gaseous state in a fire extinguisher storage vessel into an object fire...
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5673755 |
Installation for fighting fire in a plurality of fire sections
An installation for fighting fire has a drive unit for extinguishing liquid. A main feed line (5) of the drive unit (1) is connected to a pilot valve having outgoing lines to a plurality of fire...
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5655608 |
Fire fighting equipment
The present invention relates to a fire fighting equipment, comprising at least one spray head (1) with a number of nozzles (3) directed obliquely sideways. The nozzles (3) are arranged so close to...
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5653291 |
Pressure activated valve for fire fighting installation
A valve for a fire fighting installation has a housing, an inlet into the housing and connectable to a source of extinguishing liquid at a high pressure, an outlet from the housing and connectable...
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5458202 |
Pressurized extinguishant release device with rolling diaphragm
A pressurized extinguishant release device with a rolling diaphragm includes a closed elongated sensor tube filled for example with 50% water and 50% ethylene glycol which terminates in an...
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5236049 |
Fire emergency, sprinkling control system and method thereof
There is described an electronic fire reporting and sprinkling control module to be connected to a control bus of a fire alarm system, and to a flow control valve which controls flow of...
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5188184 |
Fire suppression systems
A fire suppression system in which fire suppressant material is contained in a reservoir, the reservoir having an outlet and a system containing one or more nozzles from which the suppressant is...
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5125458 |
Fire fighting apparatus
Fire fighting apparatus has a fire retardant or fire quenching system mounted on a structure operative in response to detection of fire to take water from a reserve supply in the absence of main...
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5099925 |
Dry sprinkler system
A dry sprinkler system includes a compressed gas pilot operated water valve between a water supply main and a dry sprinkler pipe, the valve being normally open and held closed upon activation of...
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5069291 |
Method and apparatus for suppressing explosions and fires and preventing reignition thereof
Apparatus for suppressing explosions comprises a reservoir containing hot pressurized water which is heated by a heater. On explosion conditions occurring in an enclosure a high speed differential...
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4903573 |
Explosion suppression system and composition for use therein
A composition, suitable for use as an explosion suppression composition, and comprising a mixture of at least one particulate component selected from alkali metal bicarbonate, alkali metal...
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4872513 |
Chimney fire extinguisher
A chimney fire extinguisher includes a small diameter narrow conduit removably insertable through a small aperture in a chimney wall. A source of fire extinguishate under pressure is coupled to one...
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4648460 |
Fire protection system
A fire protection system comprises a fire extinguisher, pneumatically operable actuator on the fire extinguisher for triggering the extinguisher, an elongate tube containing a temperature...
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4622209 |
Process and apparatus for reducing the chances of ignition and explosion due to the decomposition of high-pressure industrial process gases
The danger of explosion due to decomposition of high-pressure industrial process gases, such as ethylene, is reduced by beginning to cool the decomposition gases with a delay of no more than 25...
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4589496 |
Fire suppressant valve using a floating poppet
A rapid-acting fire suppressant valve that includes a linearly-movable poppet having a long stroke enabling the poppet to move beyond the suppressant flow stream. Poppet motion is initiated by...
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4570719 |
Dry pipe valve accelerator
A dry pipe valve accelerator is operative for quickening the operation of a dry pipe valve in a dry sprinkler system in order to hasten the delivery of water throughout the system in response to...
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4531588 |
Fire suppression system
The invention is a fire suppression system. A first dispensing assembly 22 is adapted to provide a flow of liquid fire suppression chemical at a constant pressure to a first outlet port 24. A first...
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4367861 |
Installation control valves
An installation control valve, for example for use in a fire fighting sprinkler installation, comprises a pivotal butterfly valve disc co-operable with a movable stop, which in one position abuts...
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4305469 |
Fire extinguishing system having a discharge valve and a distribution valve actuated by a pneumatic actuator
A fire protection system including a discharge valve for discharging a pressurized extinguishing agent from a storage container into a distribution manifold. Discharge of the agent is induced by a...
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4281717 |
Expolosion suppression system for fire or expolosion susceptible enclosures
A system for sensing and acting to suppress flame conditions as well as an explosion associated with a flame front in an enclosure which is susceptible to fire and explosion condition, such as...
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4175677 |
Self-contained actuation and detection device
A double ended piston assembly is maintained in a cocked position in a stepped piston chamber under the influence of pressurized sensor gas. Loss of pressure results in the pistons being driven to...
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3958643 |
Sprinkler system and method of operating the same
A sprinkler system having a pressurized sprinkler conduit which is separated from a water supply by a normally closed valve, and a fire alarm system having a circuit which is connected with this...
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3949812 |
Fire extinguishing system
A fire extinguishing system includes a container of extinguishing agent and a valve for controlling the discharge of the extinguishing agent. The discharge control valve is opened and closed by a...
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3939914 |
Combination air conditioning and fire protection system for a building
A combination air conditioning and fire protection system for a building including a heat exchanger through which fluid may pass under pressure, a fluid conditioning unit operable to bring fluid to...
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3888314 |
Sprinkler system
A sprinkler system having a pressurized sprinkler conduit which is separated from a water supply by a normally closed valve, and a fire alarm system having a circuit which is connected with this...
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3871457 |
Fluid control device and a fire protection system incorporating said device
A fluid control device in which a body member has a passage therethrough extending between an inlet adapted to be connected to a source fluid under pressure and an outlet adapted to be connected to...
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3860073 |
FIRE EXTINGUISHER DISCHARGE VALVE
A discharge valve for each of a plurality of manifold connected containers for fire extinguishing fluid, the discharge valve including a main valve pressure seated by fluid in the container to...
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