Abstract: A firefighting vehicle can be transported to a fire, connected to a water supply hose, and maneuvered by remote or self-contained control to dispense water from the supply hose through a nozzle and onto the fire. The apparatus may be driven by a pair of independent, continuous tracks, and may include a video monitor to transmit real-time images to the operator to view the fire and control the apparatus. The nozzle and monitor may be mounted in a vertically rotatable turret portion, enabling water discharge from ground level to past vertical.

Abstract: A portable fire fighting and vapor suppression apparatus includes a cart having sides defining an enclosure and is a size so that it can be manually moved by a single individual. The cart includes a bottom having wheels mounted thereon. The cart has an internal partition forming an enclosed storage area that is separate from the rest of the enclosure which forms a sealed holding tank for storing a foam concentrate. An eductor is mounted within the enclosed storage area and has an inlet for connecting to a source of high pressure water. The foam eductor includes a foam mixing portion and a discharge. A foam pickup tube is connected to the foam mixing portion and extends through the internal partition to the form holding tank for sucking foam concentrate as water is forced through the inlet and eductor.

Abstract: The machine constitutes a tracked type vehicle (1) able to adapt itself to the various terrain irregularities. It includes nozzles to project pressurized air (11) fed by compressors (8) placed upon the general machine chassis, including furthermore fire producing gas projection nozzles (12) that produce fire as the machine advances, so that said nozzles (11) and (12) direct air and fire in the desired direction in order to create a fire lane. The machine incorporates the means necessary to hook a trailer (19) carrying water tanks (21), fire extinguishing fluid tanks (22) and mixing tanks (23) to enable the projection of said components in case of emergency. Said machine is particularly designed to burn off land strips close and parallel to a fire front, so as to prevent it from spreading.

Abstract: Methods, circuits, and kits for converting battery powered smoke detectors to AC power include a power converter which converts standard household AC voltage to a DC voltage suitable for use by a battery powered smoke detector and a battery clip connector for connecting the power converter to the battery clips of a battery powered smoke detector. According to one embodiment of the invention, a light emitting diode is coupled to the battery clip connector to indicate the presence or absence of DC voltage at the smoke detector. According to another embodiment of the invention, several battery powered smoke detectors are coupled to a single power converter. In yet another embodiment of the invention, several battery powered smoke detectors are provided with an AC power supply having an automatic battery back-up power supply. Preferred aspects of the invention include: providing the battery backed-up AC power supply with a battery tester and providing fuses for each smoke detector and for the battery.

Abstract: Equipment for fighting a fire has a suspension structure and hydraulic accumulators in the suspension structure for movement to within an action range of the fire. The hydraulic accumulators have outlet nozzles at one end for utilizing a high drive pressure in the hydraulic accumulators to produce, by suction effect, a fog-like penetrating liquid spray. In this regard, the suspension structure is a jacket structure for holding together the hydraulic accumulators in such a way that, between the hydraulic accumulators, there are longitudinal air channels.

Abstract: A ceiling mounted rotating fire extinguishing system comprised of a cylindrical housing having four heat sensitive sprinkler heads positioned therearound. A fire retardant liquid container is secured within the cylindrical housing. The liquid container has a five way piping system extending outwardly of a lower portion thereof. The five way piping system has four extensions coupled with the four heat sensitive sprinkler heads in the cylindrical housing. The five way piping system has a downwardly extending pipe extending outwardly of the cylindrical housing. A spraying housing has a plurality of heat sensitive sprinkler heads extending outwardly thereof. The spraying housing is adapted for rotatable coupling with the downwardly extending pipe of the fire retardant liquid container. A motor is secured within the cylindrical housing. The motor rotating the spraying housing with respect to the cylindrical housing.

Abstract: A fire shielding device which is portable and may be positioned adjacent to structures for creating a fluid shield in areas which may be exposed to fire from an adjacent forest, field, building or other source.

Abstract: An adjustable sprinkler head positioning assembly is disclosed that includes a first conduit member and a second conduit member that are selectively positionable relative to each other and to a drop line fitting so as to position a sprinkler head at a desired location. The first and second conduit members each have an inlet portion and an outlet portion that are offset relative to each other by a predetermined distance. The sprinkler head is positionable anywhere within a circle having a radius equal to the sum of the offsetting distances between the inlet and outlet portions of each conduit member. Elbow couplings further increase versatility. The elbow couplings may have an inlet positioned at a 45.degree. angle or a 90.degree. angle relative to an outlet.A drop line fitting is weldable to a sprinkler drop line and includes a socket for receiving sprinkler system plumbing such as the first and second conduit members.

Abstract: A portable, pallet-mountable, remotely controlled deluge system provides a means for rapidly delivering a large quantity of a liquid to a region of hazardous materials or a fire. An accumulator, mounted, for example, on a pallet is charged with a quantity of water, aqueous film-forming foam, or other liquid quenching agent. The liquid is pressurized with an inert gas and the liquid is held in the accumulator by an electric/hydraulic valve. The valve is connected to a control panel which is wired to a remote control. The control panel also includes an antenna to receive a remote control signal by electromagnetic communication. The system provides a method of quickly getting a fire-fighting liquid or a deluging liquid to a scene of a fire or a hazardous waste spill without subjecting personnel to the hazard.

Abstract: The object of the invention is to provide an apparatus for the cooling and quenching of destructive fires. The Fire Extinguishing Capsule comprises two double-walled hemishapes which are sealed together by an equatorial belt seal which may be raptured in order to disperse the extinguishant in the capsule. The capsule may be suspended in sire or from a hook and ladder system or a helicopter in the case of forest fires or oil well fires or transported by sled to a fire scene.

Abstract: Apparatus for extinguishing an oil well fire includes a platform which is maneuvered by helicopters into a position centered on the well casing. A radial slot formed in the platform guides the casing to pass to the center of the platform. A latch secures the platform around the casing. The platform supports a plurality of dewar tanks containing liquid helium. Each dewar tank has a remotely controlled release device. In the preferred embodiment, this release device comprises an explosive charge, but in other embodiments may be a remotely controlled valve. At least three cables, attached to the platform in circumferentially spaced apart relation, enable an equal number of helicopters to move the platform stably. The platform is preferably made from titanium. The cables are steel sheathed in insulating material. When used, the device is maneuvered onto the well casing, and a remote signal releases the helium. The helium absorbs heat and expands.

Abstract: A picture-combined fire extinguisher is characterized by a glass-shelled extinguisher having a frame, to which a show window is pivotally connected. The show window consists of a clear panel, and an outer frame which extends backward and inward to form a space allowing a picture to be inserted therein behind the panel. Luminous and protective pads are provided at corners of the frame of the extinguisher so that the extinguisher may be easily and timely identified and accessed even in a dark place or in the nighttime without lighting. Meanwhile, the picture-combined fire extinguisher functions not only as a fire extinguisher but also as an aesthetic article.

Abstract: A portable, positive pressure fan for fire fighting provides a three-leg frame with a platform supporting the fan and its driving engine. The platform carries two forward, laterally spaced collars and one rearward collar to adjustably receive the three legs for support spacedly above a supporting surface. The legs are adjustably positionable in the collars to allow vertical adjustment to regulate fan height and angulation relative to a supporting surface, have an arcuate configuration and are somewhat resilient to absorb and damp operative forces, and the leg array alleviates or negates walking of the structure on a supporting surface caused by vibrations resulting from operational forces. The fan has a blade with diametrically opposed lobes of the aircraft propeller type to create a narrow cone of pressurized air and preserve as great a volume and velocity of such air as possible at ordinary operating distances.

Abstract: Fires in oil wells are contained by placing a pipe ring containing selectively located and aimed spray nozzles around a burning oil well by a self-propelled vehicle that includes a controllable boom for raising and lowering the pipe ring and a pump to supply liquid carbon dioxide to the spray nozzles to form a substantially cylindrical or conical volume of liquid carbon dioxide around the oil well. The spray excludes oxygen from the region inside the cylindrical volume and the fire is extinguished by lack of oxygen as it is cooled. Some of the spray may be directed away from the pipe ring to cool heated objects near the fire. In one embodiment of the invention, a ring containing spray nozzles is moved by a walking boom to surround and put out a fire in a well in which the flow rate is relatively high.

Abstract: A portable ground standing fire fighting monitor includes a support platform intended to be placed horizontally on the ground surface, a water gun with a curved flexible inlet tube having an inlet end and a curved discharge head having an outlet end, a watertight ball-bearing swivel joint coupling the discharge head to the curved flexible inlet tube, and an adjustable bracket assembly, a crank wheel, and a threaded rod and ball joint connector coupling the flexible inlet tube on the support platform. By rotating the crank wheel and the threaded rod and ball joint connector therewith, relative to the bracket assembly and flexible inlet tube, the flexible inlet tube and discharge head therewith can be adjusted to varying inclinations thereby allowing the operator to adjust stream flow direction vertically.

Abstract: A portable water pumping station is disclosed. A hand-drawn support stand includes wheels, a vertical frame, and a handle that may be used to manually roll the pumping station along the ground. A mounting shelf fixed to the lower portion of the support stand holds a motor-driven water pump. The inlet side of the pump is connected to a suction hose that is either placed into a nearby body of water or connected to a municipal water source. The outlet side of the water pump is connected to one end of a pressure hose. The pressure hose is normally coiled on a storage take-up reel mounted to the frame, and has a nozzle at one end. Additional hose storage frame may be included on the frame for extending the pressure hose if necessary.

Abstract: An adjustable sprinkler head positioning assembly is disclosed that includes a first conduit member and a second conduit member that are selectively positionable relative to each other and to a drop line fitting so as to position a sprinkler head at a desired location. The first and second conduit members each have an inlet portion and an outlet portion that are offset relative to each other by a predetermined distance. The sprinkler head is positionable anywhere within a circle having a radius equal to the sum of the offsetting distances between the inlet and outlet portions of each conduit member. Elbow couplings further increase versatility. The elbow couplings may have an inlet positioned at a 45.degree. angle or a 90.degree. angle relative to an outlet.A drop line fitting is weldable to a sprinkler drop line and includes a socket for receiving sprinkler system plumbing such as the first and second conduit members.

Abstract: A mobile modular fire suppression apparatus (10) includes a platform (12) which may take the form of a skid. The platform (12) has mounted thereon a foam concentrate pump (34), an output of which is connected to a foam concentrate inlet of an in-line balanced pressure proportioning module (200). A water inlet (42) of the proportioning module (200) is connected to a pressurized water intake manifold (20) that is preferably disposed on a rear side of the skid (12). Foam concentrate intake lines (60), return lines (100), and foam solution discharge conduits (120) have ports on the left and right sides of the skid. By use of remote foam concentrate supply vessels (16) and a plurality of standard municipal water pumper trucks (14), the invention permits the creation and distribution of a large volume of fire fighting foam at a low capital cost.

Abstract: An quickly and easily adjustable support stand for a positive pressure blower having a stationary assembly attached to a pivotally mounted blower support assembly. A foot plate is attached to a horizontal latching bar having mounting pins at either end thereof. The latching bar is pivotally mounted to the stationary frame, and is held against the back of the larger blower support frame assembly which assembly is also separately pivotally mounted to the stationary frame. By applying pressure to the foot plate (i.e. by stepping on it) the latching bar may be moved away from the pivoting blower support assembly so that its angle of tilt may be adjusted by hand up or down. When the desired angle of tilt is reached, foot pressure to the horizontal bar may be released, latching the blower support frame assembly firmly in place on the stationary frame. This simple adjustment may be quickly accomplished by a fire fighter without even bending over.

Abstract: A fire retardant dispensing device is disclosed intended to be worn about the head within the helmet of a driver, which includes an apertured dispensing ring secured to the helmet about critical facial areas and operatively coupled to a pressurized source or reservoir of fire retardant. The dispensing ring includes a pair of lateral nozzles supplementing discharge and distribution of the fire retardant from the apertured ring. A buckled belt releasably retains the fire retardant source about the torso or leg of the user.

Abstract: A door includes an apparatus for reducing smoke associated therewith. The door is particularly advantageous in reducing smoke in a fire to thereby allow a firefighter or a victim trapped in a fire to readily indentify an exit. The door includes a nozzle or plurality of nozzles mounted upon the door, with a liquid source connected to the nozzle. Preferably, the door additionally includes a supply of pressurized water therein, with a surface active agent in an amount of 0.

Abstract: Fires in oil wells are contained by placing a pipe ring containing selectively located and aimed spray nozzles around a burning oil well by a self-propelled vehicle that includes a controllable boom for raising and lowering the pipe ring and a pump to supply liquid carbon dioxide to the spray nozzles to form a substantially cylindrical or conical volume of liquid carbon dioxide around the oil well. The spray excludes oxygen from the region inside the cylindrical volume and the fire is extinguished by lack of oxygen as it is cooled. Some of the spray may be directed away from the pipe ring to cool heated objects near the fire. In one embodiment of the invention, a ring containing spray nozzles is moved by a walking boom to surround and put out a fire in a well in which the flow rate is relatively high.

Abstract: A fire suppression nozzle device, to be used by firefighters to selectively and immediately utilize a plurality of different firefighting agents through the single nozzle when circumstances require, the nozzle including a housing having a primary conduit wherethrough water at substantially high pressure and high volume may be emitted, a secondary conduit with a venturi outlet extending into the primary conduit such that a second firefighting agent flowing through the secondary conduit will be drawn into the primary conduit as a result of a venturi effect suction for mixture with the water passing through the primary conduit and emission out an adjustable flow tip on a downstream, open end of the primary conduit, and a third conduit having a fixed emission tip and adapted to receive a high pressure flow of a third firefighting agent therethrough and out a fixed emission tip, all of the conduits including flow control valves to enable facilitated flow adjustment and utilization of a particular firefighting agen

Abstract: The present invention provides an apparatus and process to extinguish fires in oil wells by encircling the nucleus of the fire by creating a barrier of isolation of the fuel. The apparatus expands gases in the gaseous and liquid states and directs such gases upon, under and around the nucleus of fire, encircling it at 360 degrees and isolating it completely from the atmospheric air, while at the same time causing the convenient cooling of the nucleus of fire, thereby avoiding any possibility of auto-ignition. The process and apparatus of extinguishing fires in oil wells either in land or at sea, is also disclosed which uses a derrick type hoist, to place the apparatus around the fire, and to apply simultaneously a non-combustible gas in the liquid state (for example, carbon dioxide CO.sub.2, or bromochlorine-difluormetane, or nitrogen or any other commercially known gas like HALON 1211), and the same gas in the gaseous state.

Abstract: A mobile robot is provided with a fluid conduit which is connected to an on board fluid-responsive turbine. An on board electric generator and/or hydraulic pump is connected to the mechanical output of the turbine such that power for the robot is generated when the turbine rotates due to the flow of fluid through the conduit. The fluid may then be expelled through a nozzle and used as an extinguishant, a propellant or a coolant.

Abstract: There is described a portable water monitor for fire fighting, irrigating or other watering purposes. The water invention is of compact, stable, light-weight configuration. The device has a base unit which may be filled with water to increase the weight of the unit when deployed in the field. Compact plumbing is provided which permits the monitor nozzle to be rotated 360.degree. in the horizontal direction about a vertical axis swivel coupling and to be elevated and depressed in a ball and socket coupling. The ball and socket coupling additionally provides that the monitor nozzle may be offset relative to the swivel action coupling on the ball and socket coupling. This offset, which is actually the ability to point the nozzle away from the unit's vertical axis, creates a rotational force for the nozzle by harnessing a portion of the reaction force which acts through the center of the nozzle. The unit can be manually or remotely controlled.

Abstract: The present invention is designed to be mounted over a flaming oil wellhead to extinguish the flames. The invention includes a base having hydraulically operable arms designed to allow secure support of the base over the oil wellhead even in uneven terrain. A cap device is mountable on the base and includes tangentially arranged ports designed to supply the interior of the cap with a fluid such as liquid nitrogen to cool and extinguish the flames. The cap may include a labyrinth tortuous path restrictor forcing escaping combustion products and other gases to follow a tortuous path to atmosphere to thereby cause the gases to lose energy and cool as they escape.

Abstract: A mobile modular foam fire suppression apparatus includes a movable platform. Supplies of foam concentrate and water are remote from the platform. A foam concentrate pump mounted on the platform pumps foam concentrate from a remote supply, such as a foam concentrate tank or tailer, to a water/foam proportioner on the platform. Water is provided under pressure from sources such as pumper trucks to a water inlet of the water/foam proportioner. The proportioner mixes the water and the foam concentrate to form a foam solution, which may then be applied to a fire with any of several foam solution discharge devices. Preferably, the apparatus also includes a foam concentrate return line which returns excess foam concentrate back to the remote supply of foam concentrate. This return line has a pressure regulator which regulates the pressure in a portion of the foam concentrate return line to a predetermined value.

Abstract: A device for extinguishing oil well fires having an inverted conical steel chamber which is lifted by a crane and placed over the wellhead of a burning oil well. The chamber is dropped into place so that it embeds itself into the sand or soil around the wellhead. Numerous fire hoses supply water to the interior of the chamber to extinguish the fire. Gas exhaust valves vent the interior of the chamber so that the pressure of the steam created does not lift the chamber off of the fire. A remotely controlled damper plate at the top of the chamber can be closed to seal off the fire inside the chamber. The chamber is made in sections that can be dissassembled and nested together for ease in shipping or storage.

Abstract: A steerable compression clamp assembly includes a guide plate for aligning the assembly with an oil wellhead casing and clamp and compression assemblies for collapsing the casing to seal same. The clamp assembly provides an articulating arm which cooperates with a stop arm. The compression assembly includes a pair of crushing dies which mount to a hydraulic ram. In alternative configurations, a cable directed drag skid or a tracked vehicle support the compression assembly. Remotely mounted controls direct machine operation and steering. A hydraulic cylinder may also be included with a split duide plate to provide a controlled separation of the guide plate during compression.

Abstract: A hand portable positive pressure blower for fire fighting is described which includes an engine 10 with a drive shaft 12 mounting a propeller 16 within a propeller guard 22. This assembly is rigidly mounted to a central frame 27 that itself is rigid and extends about the engine. The central frame 27 is mounted by pivots 47 to a rigid support frame 37 for movement about a fixed adjustment axis 50. An adjustment means is provided to enable selective angular positioning of the central frame about the adjustment axis. The support frame 37 is mounted on rubber feet 42, 43 at integral pairs of forward and rearward legs 38, 39. The legs 38, 39 are angularly oriented with respect to the adjustment axis. Distances from the feet to the adjustment axis and the angular relationship of the blades promotes a secure footing for the blower and a compact configuration to facilitate transport and storage.

Abstract: Apparatus and method for extinguishing oil well fires by plugging a wellhead pipe from which oil, gas and a fire flame front are emanating including centering and fluid ballasting a capper over the wellhead pipe, forcibly inserting the capper into the wellhead pipe to seal the wellhead pipe and introducing mud through the capper into the wellhead pipe to "kill" the fire. The apparatus includes the capper, fluid ballast and pressure exerting apparatus and plugging apparatus.

Abstract: An improved firehose storage and transportation device comprising a carrying case having front and rear compartments wherein a firehose is stored in a serpentine manner and formed with a releasably secured flap to give the user the option of discharging the hose as a single unit or of allowing the hose to be paid out gradually.

Abstract: The method and apparatus of this invention provides a cannon-like device for projecting a sheath of fire extinguishing particles rapidly upwardly along a flaming oil and/or gas stream gushing up from an oil and/or gas well. The sheath instantaneously insulates the oil and/or gas in the stream from the surrounding atmosphere to freeze the flame at the tip of the sheath and shield the stream within the sheath from contact with the flaming oil and/or gas above and around the stream of oil and/or gas enclosed within the sheath until all of the already flaming oil and/or gas has been burned out. The method for eliminating the flames above the outlet of an oil well is accomplished by separating the oil and/or gas stream flowing from the oil and/or gas well from the flames by producing a sheath of fire extinguishing material, driven by an explosive charge into a position to surround and separate the oil and/or gas stream from the flames.

Abstract: In an apparatus and process for extinguishing the fire of an escaping flow of fossil fuel, such as from an oil or gas well, the preferred apparatus comprises a boom-held, open-ended, split stack equipped with quench fluid outlets on its inside and structure for spreading the stack and closing it around the flame to confine and operate on the flame front. The process involves closing such stack around the flame, preferably with the quench fluid flowing from the opened-up stack as it approaches the fire, then continuing such flow until the fire goes out and the fuel vapors and equipment in the former flame zone are below autoignition temperature.

Abstract: A transport unit for transporting fire fighting hoses, explosive materials, equipment or other items, the unit having a projectile launcher including a pressure tank providing a compressed gas chamber, and a projectile barrel mounted on the tank in fluid communication with the interior of the tank, a projectile positioned in the barrel, a hose or other line connected at one end to the projectile launcher and adapted for connection at its other end to the projectile, the line being adapted for connection to a pressurized fire fighting or explosive fluid source, or the line being comprised of an explosive material, the compressed gas chamber adapted to provide launching force to the projectile upon actuation of the launcher.

Abstract: An improved method and apparatus for controlling large hydrocarbon-fueled fires contemplates the use of vapors produced by direct contact vapor generators to simultaneously cool the flames and deprive the fire of oxygen. A direct contact vapor generator accomplishes fire suppression by surrounding the fire with oxygen-free gases while cooling the flames with water vapor. The direct contact vapor generator is uniquely suited for extinguishing hydrocarbon-fueled fires because of its ability to produce oxygen-free gases and vapor in sufficient quantity to snuff out a fire of the magnitude of those occurring at the sabotaged wellheads in Kuwait in 1991 as well as oil field, oil storage facility, and oil refinery type fires.

Abstract: A device and method for extinguishing wellhead fires is disclosed. The method comprises the steps of placing a screen member directly onto said wellhead such that the area of combustion is entirely above said screen, raising said screen from said wellhead to create a distance of free-flowing but non-burning oil, and placing a diversion member into the flow path of the non-burning oil. The device comprises an apertured screen member which allows the oil to flow through the apertures while preventing the fire from burning below it.

Abstract: A semicylindrical hood is formed with a lower beveled cutting edge arranged for positioning above an oil well fire and its projection, wherein the edge is arranged for a digging into a surrounding environment relative to the fire to effect its discontinuance of oxygen thereto. A first halogen gas conduit and a second water conduit are directed into the hood to effect extinguishing and cooling of a fire contained therewithin. Various guide loops are mounted about the lower edge perimeter for guidance of the hood relative to an associated oil well fire. A pressure relief valve, as well as a temperature indicator organization, is mounted through the hood.

Abstract: The present method and apparatus are directed to a fire control system for use with a drilling rig. Multiple nozzle means are positioned around a drilling rig at selected locations to spray water delivered through fire hoses onto the rig to prevent fire damage. The equipment utilizes a skid-mounted engine and connected centrifugal pump for delivery of water from a closed storage tank. An engine control unit adjusts the throttle to an operating speed which delivers no water during normal operation. Subject to control by switch means on the rig floor, either hard wired or by means of a radio transmitter and receiver arrangement, the engine control unit switches the engine to maximum power output. An alarm is also sounded when this occurs. So long as the engine is running, operating lights signal rig personnel that the equipment is operative. The equipment is switched from a slow speed operation to a maximum power output to deliver water under control of rig personnel.

Abstract: A wellhead fire extinguishing apparatus comprises a flame containment housing which is lowered into place above the wellhead fire to create a chimney-like updraft and draw the fire surrounding the wellhead into the housing. The housing is then lowered to the well platform or ground and the flame is cooled by a coolant/flame retardant to cause the ignition point of the flame to rise above a flapper valve in the housing. The flapper valve is closed by remote actuation to separate the flame from the fuel flowing from the wellhead. The unburned fuel is vented from the housing and the flame is extinguished by the coolant/flame retardant.

Abstract: A fire protection apparatus includes spray nozzles oriented specifically adjacent engines associated with transport vehicles. The transport vehicles each include engine conduits for quick coupling to fire extinguishing agent conduits to permit remote coupling to a vehicle directing fire extinguishing agents such as halon gas and carbon dioxide to the engine for extinguishment of an associated fire.

Abstract: A method and apparatus extinguishes an oil well or gas well fire burning as a consequence of ignited oil and/or gas escaping the well. The method employs an elevated chimney that is placed over the burning well to cause combustion to shift from the well to an elevated position above the well at the top of the chimney as oil and/or gas continue to escape from the well through the chimney. This provides a route for the passage of unignited oil and/or gas from a lower portion of the chimney. The unignited oil and/or gas can be conducted away from the well while oil and/or gas escaping from the top of the chimney continues to burn. The fire is extinguished by closing off the top of the chimney while permitting all of the oil and/or gas escaping from the well to be routed away from the well in unignited condition through the power portion of the chimney. After the fire is extinguished, the chimney can be removed to permit the well to be closed against further escape of oil and/or gas.

Abstract: A system, for extinguishing flames from combustible fluids exiting from a pipe, has an elongated tubular extinguisher body being disposable over the fluid emitting pipe, the extinguisher body having a lower inlet end and an upper outlet end and the body being adapted to accommodate a flow of the combustible fluid through the extinguisher body. A valve arrangement is mounted in the extinguisher body adjacent its upper outlet end for gradually limiting and finally eliminating the flow of the combustible fluid through the extinguisher body. Also, a flame inhibiting structure, including circular nozzle structures, are disposed adjacent the lower inlet end of the body and adjacent the valve arrangement and externally of the extinguisher body for preventing the support of combustion of combustible fluids adjacent the circular nozzle structures.

Abstract: A foam delivery system which may be worn by a fire fighter is disclosed which comprises a foam containing vest formed of two components filled with foam concentrate in fluid communication with a foam aspirating spray nozzle. The front portion of the vest is provided with adjustable connectors or buckles so that the foam vest may adjusted to fit the fire fighter. A connector hose permits fluid communication between the two vest components. The vest components include vertically extending chambers which open to a bottom fluid chamber. The vest is provided with a fill port and a vent opening permitting the foam concentrate to be evenly distributed throughout the foam vest. A valve and hose arrangement connect the vest to the spray nozzle which is connected to a water hose. The spray nozzle includes a venturi nozzle for developing a low pressure zone within the spray nozzle for aspirating foam concentrate into the water stream.

Abstract: A mobile apparatus provides a safe environment for controlling oil wellhead gushers and fires at such gushers. It includes a main compartment, having a gas exchange lock access, and a flue stack, having a flue outlet, which form a gastight enclosure at the area around the wellhead. The flue stack opens to atmosphere at the flue outlet and a portion of the flue stack is moveable to control the size of the opening and, thus, the flow rate of exiting gases. A nonflammable environment is established in the apparatus, any fire present at the wellhead is relocated exterior to the enclosure, and the relocated fire is extinguished. The apparatus can be provided with at least one baffle that temporarily retains liquids impinging on it while not preventing the flow of gases from the enclosure, and a recovery basin that is positioned below the liquid-gas separation baffle(s) so as to collect and pass the liquids so collected exterior to the apparatus for recovery.

Abstract: A very simple, safe, and robust device for extinguishing oil well fires consists of an inclined duct which is connected to a vertical duct placed over an oil well fire, and of suitably arranged baffles which are inserted into the inclined dust for redirecting or separating the oil and gas streams. The purpose of the inclined duct is to separate the oil and gas from the two-phase mixture which is produced by a burning well and consequently to decrease the oil evaporation area or volume of combustible gas and starve the fire when the air inflow from the bottom into the vertical duct is reduced or eliminated. The fire-extinguishing device contains only baffles as moving parts which can be operated remotely through pulleys. The separated oil stream can be discharged into the atmosphere or collected into a holding tank until the next phase of work associated with capping of the oil well is initiated, thus reducing the environmental pollution problems and creating a safe zone for personnel to work.

Abstract: A fire extinguisher extinguishes a fire burning relative to a support surface. The fire emanates from an opened end of a pipe. The fire extingisher includes a body having a downward opening cavity for being dropped over the fire to enclose the fire within the cavity; the body has a continuous wall forming a mouth of the cavity; a seal for forming a substantially airtight seal between the continuous wall of the body and the support surface; and a crimp mechanism for crimping the opened end of the pipe after the body is dropped over the fire.

Abstract: A fire-fighting system including a tractor and tanks mounted on the tractor at different elevations. The tanks are filled with water and during dispensing of the water during fire-fighting the tanks are emptied in order from the top-most down.