Abstract: The present invention provides a compressed air artificial wind system including compressed air storage device, compressed air discharge device, artificial wind system base and controller; also a firefighting equipment including an extinguishing agent tank and the compressed air artificial wind system. The compressed air storage device includes row tubes and manifolds for production and storage of high/ultra-high pressure compressed air; the compressed air discharge device includes intake pipe, expansion chamber, Laval nozzle and wind-blowing tube; the artificial wind system base is built as an infrastructure. Large quantity of high/ultra-high pressure compressed air under control from the compressed air storage device and through the compressed air discharge device to spray out generating artificial wind with large air volume and high wind speed for meteorological control, forest firefighting, air defence and coastal defence, respectively.

Abstract: Methods and systems for generating escape routes are provided. With a home owner's or insured's permission, a smart home controller or insurance provider remote processor may analyze data received from a plurality of smart devices disposed on, within, or proximate to a home, as well as data received from an insurance provider. If it is determined that an emergency situation necessitating an evacuation exists, the smart home controller or insurance provider remote processor may automatically generate escape routes to guide occupants to safety. The smart home controller may then transmit the generated escape routes to inform occupants of emergency situation and how to reach safety. The smart home controller and/or insurance provider may also issue commands to smart devices to ensure the safety of the generated escape routes. Insurance policies, premiums, or discounts may be adjusted based upon the escape route determination functionality.

Abstract: A filtered air candle extinguishing device for sanitary candle extinguishing with filtered air includes a shell that is elongated. The shell has a first open end and a second open end. A mouthpiece is coupled to the first open end. The mouthpiece is configured to engage the lips of a user to form a seal. A filter is coupled to an interior face of the shell, defining a front chamber of the shell. The mouthpiece is positioned on the shell such that a user's lips can sealably couple to the mouthpiece. Air expelled by the user will create positive pressure in the front chamber, such that the air will pass through the filter. The filter retains spittle and the air exits the shell through the second open end to extinguish lighted candles on a cake.

Abstract: Methods and systems for generating escape routes are provided. With a home owner's or insured's permission, a smart home controller or insurance provider remote processor may analyze data received from a plurality of smart devices disposed on, within, or proximate to a home, as well as data received from an insurance provider. If it is determined that an emergency situation necessitating an evacuation exists, the smart home controller or insurance provider remote processor may automatically generate escape routes to guide occupants to safety. The smart home controller may then transmit the generated escape routes to inform occupants of emergency situation and how to reach safety. The smart home controller and/or insurance provider may also issue commands to smart devices to ensure the safety of the generated escape routes. Insurance policies, premiums, or discounts may be adjusted based upon the escape route determination functionality.

Abstract: Disclosed is a fire hose coupling apparatus for self powered lighting of an area where a fire fighter is engaged in fires suppression with a fire hose, and for providing real time environmental data to fire fighters.

Abstract: A sprinkler assembly includes a body, a support, which extends from the body, and a closure device that releasably closes the discharge opening of the body. The sprinkler assembly further includes a trigger that releasably holds the closure device at the discharge opening. The support is adapted to allow the fluid flowing from the discharge opening, when the closure device is released, to pass through the support substantially unimpeded by the support and, further, is adapted to reshape the flow of fluid as it flows through the support.

Abstract: A filtered cake candle extinguisher device comprises a filter, a mouthpiece connected to the filter and a decorative cover for covering filter. A sound generator may be provided to enhance the user's enjoyment while using the extinguisher device to blow out a candle or candles.

Abstract: An extinguisher has a cylinder capable of containing a fire-extinguishing product, and means for releasing the fire-extinguishing product from the cylinder and comprising at least one compressed gas cartridge, at least two tanks, each capable of containing at least one additive product, and means for releasing at least one additive product from each of the at least two tanks and for mixing with the fire-extinguishing product during the release of the fire-extinguishing product. At least one of the tanks is removable relative to the extinguisher. A cartridge having a plurality of tanks is usable in the extinguisher.

Abstract: A method of laser (30) based fire fighting, the method comprising: delivering energy from an emitted energy beam source to an active fire affected area (10) so as to process combustible material by one of cutting, ablating, charring and total oxidation so as to reduce the quantity of combustible material. Preferably the provided energy exhibits a total fluence of at least 50 micro-joule per square centimetre measured over a window of no more than 0.1 milliseconds. Preferably the provided energy is from a laser.

Abstract: A filtered blower for extinguishing candles on a dessert is provided. The filtered blower includes (1) a substantially tubular body having (a) a plurality of body sections adjoined to each other along their length to form a substantially hollow space, a mouthpiece, and a nozzle, (b) a raised lip surrounding the mouthpiece, and (c) a slot within the body, between the mouthpiece and nozzle, with a first portion and a second portion, wherein the first portion retains substantially unchanged dimensions, and the second portion narrows distally from the slot to the nozzle, and (2) a screen within the slot with holes sized for allowing passage of air while filtering passage of liquid and projectiles, whereby upon a person blowing air through the filtered blower, candles are extinguished while liquid and projectiles are prevented from reaching the dessert.

Abstract: A fire shutter adapted to close off an area comprises a shutter curtain movable from an up position to a closed position, wherein the shutter curtain closes off the area when in the closed position, and at least one retractable guide, movable from a retracted position to an extended position and having a camber. The shutter curtain engages the at least one retractable guide as the shutter curtain moves from the up position toward the closed position, biasing the at least one retractable guide to the retracted position, and in the closed position the shutter curtain engages the camber and allows the at least one retractable guide to move to the extended position. The shutter curtain can also comprise front slats and rear slats, and an insulation package can be deployable from a non-deployed position to a deployed position within a space between the front slats and the rear slats.

Abstract: A spark arrestor for processing metal workpieces includes an annular body having an upper end wall provided with a first opening and a lower end wall provided with a second opening. The annular body has a pair of generally aligned, circumferentially offset, downwardly open first recesses, each structured to be received over at least a portion of the metal workpiece. Each recess may have having a plurality of downwardly extending first shield elements. Lateral surfaces of the annular body disposed between the downwardly open first recesses have a pair of lateral second recesses which have a plurality of second shield elements extending downwardly therefrom. A torch receiving opening is provided in the annular body to facilitate insertion of the torch. The upper end wall first opening preferably has a grid structure to resist outward migration of sparks and flames from the interior of the spark arrestor.

Abstract: A spark arrestor for processing railroad rails includes an annular body having an upper end wall provided with a first opening and a lower end wall provided with a second opening. The annular body has a pair of generally aligned, circumferentially offset, downwardly open recesses, each structured to be received over a portion of the railroad rail and each having a first plurality of downwardly extending shield elements, extending downwardly beyond the upper surface of the rail. Lateral surfaces of the annular body disposed between the downwardly open recesses have a plurality of second shield elements extending downwardly therefrom. A cutting torch or heating torch or welding torch receiving opening is provided in the annular body to facilitate insertion of the torch. The upper and lower end wall opening, each preferably having a grid structure to resist outward migration of sparks and flames from the interior of the spark arrestor.

Abstract: A valve has a valve body that defines a chamber. The chamber has an inlet and an outlet through which a flow path passes. A seat is positioned within the chamber and surrounds the flow path. A closing member is positioned within the chamber and a biasing member biases the closing member into an open position away from the seat. The biasing member exerts a biasing force on the closing member which exceeds the force exerted on the closing member by a first fluid which enters the inlet and flows past the closing member and through the open valve. The biasing force is less than the force exerted by a second fluid having one or more different characteristics from the first fluid. Force exerted by the second fluid on the closing member overcomes the biasing force and moves the closing member into engagement with the seat, closing the valve.

Abstract: A filtered cake candle extinguisher device comprises a filter, a mouthpiece connected to the filter and a decorative cover for covering filter. A sound generator may be provided to enhance the user's enjoyment while using the extinguisher device to blow out a candle or candles.

Abstract: A combustion powered, pneumatic augmented gun system is disclosed. The combustion powered, pneumatic augmented gun system may include a gun barrel, a combustion chamber, an augmentation air plenum in fluid communication with the combustion chamber, a trigger valve assembly, a fuel supply tank connected to the combustion chamber disposed to provide a combustible fuel to the combustion chamber, and an air compressor connected to the augmentation air plenum disposed to provide compressed air into the augmentation air plenum. When a projectile is to be fired, fuel is combusted in the combustion chamber providing a flow of gases into the gun barrel. Compressed air from the augmentation air plenum is released to augment the acceleration of the projectile in the gun barrel when pressure in the combustion chamber drops.

Abstract: An arrangement for testing a fire suppression sprinkler system includes a conduit for supplying a flow of fire suppression fluid to at least one sprinkler. A sensor is configured to sense the flow of the fire suppression fluid to the at least one sprinkler. The sensor has a first condition indicative of a predetermined volume of flow of the suppression fluid to the at least one sprinkler and a second condition indicative of a volume of flow of the fire suppression fluid to the at least one sprinkler less than the predetermined volume of flow. An actuator causes the sensor to be in the first condition or the second condition. A signaler provides an indication to a user that the sensor is in at least one of the first condition and the second condition.

Abstract: The present invention relates to a method for controlling and putting down woodland fires, said method comprising the steps of collecting earth at a region encompassing the fire region and projecting the collected earth to the combustion region as well as adjoining regions thereof.

Abstract: Fire protection and/or fire fighting additives including a water-swellable polymer, a water immiscible phase, an emulsifier, an inverter, and a remainder water are disclosed. The water-swellable polymer is acrylamide-free and crosslinked and may be prepared by inverse phase polymerization. Such fire protection and/or fire fighting additives and fire protection and/or fire fighting compositions made using the additives exhibit exceptionally low corrosion properties. For example, when contacted with any one of a 2024-T3 aluminum alloy, 4130 steel, yellow brass, or AZ31B magnesium alloy, the corrosion rate is less than about 5 mils/yr for the fire protection and/or fire fighting additives.

Abstract: A fire safety system includes a sensor arrangement and control scheme for quickly sensing a fire, accurately identifying its location, and controlling a set of ceiling fans and overhead sprinklers to efficiently extinguish the fire. The fire safety system is particularly suited for large buildings such as warehouses, factories, gymnasiums, retail stores, auditoriums, convention centers, theaters or other buildings with large open areas. In some examples, the overhead fans are disabled prior to activating the sprinklers. The placement of the fire sensors, in some cases, are selected upon first considering the location of the overhead fans.

Abstract: An arrangement for locally preventing the development of fires in closed duct systems or piping systems such as, in particular, cable ducts and ducts intended for transporting gaseous media, for locally containing the origin of fires, for extinguishing fires and also preventing fires from spreading, comprises at least one sensor (11) for detecting an increased temperature, increase in the content of CO2 in the surrounding atmosphere, presence of low-temperature carbonization gases, etc. At least one container (13) containing an inert gas is further provided, the sensor being operatively connected in such a way to a releasing equipment disposed on the container that when a threshold value of one or more detected values has been exceeded, inert gas can be released from the container into the ambience.

Abstract: The invention relates to a fire-protection device in the form of an easily-transportable barrier which inhibits fire spread in mountains, wooded areas and similar without having to resort to the felling or controlled burning of trees in order to establish said barrier on a soil devoid of fuel. The inventive device comprises a plurality of coaxially-interconnected modules which adopt a long, cylindrical configuration, the structure of which consists of two parts, namely: a lower fixed part (3) and an upper movable part (5) which are interconnected using telescopic cylinders (6) that enable the movable part (5) to be raised to the height required for the fire-protection barrier. In addition, a plurality of nets (7) and louvers (8), which form the actual fire-protection barrier, are provided between the aforementioned elements. Moreover, a plurality of plates are coupled to each net, such as to form longitudinal and vertical lines, and are articulated with the net (7) along the upper edge thereof.

Abstract: Those are new lines with new equipment, compounds, methods to provide immediate answers for the extinction of fires of any magnitude. The containers or Capsules herein proposed are defined as Fire Extinction Flexible Capsules (22), Fire Extinction Hard Containers (22-A), Fire Extinction Hard Spherical Containers (22-B), Refractory Fire Extinction Articulated Container (113), Special Fire Extinction Articulated Container (113-A), and Fire Extinction Mortars (96), and/or Fire Extinction Bottle-type Container (96-A). All pieces of equipment proposed will be deployed on aircrafts (97-B) or on Helicopters (97, 97-A) hovering and specially equipped to run the applications, as well as specially equipped land vehicles. The aircrafts can be provided with systems or guiding devices to guarantee target route accuracy for the extinction of forest, urban, and/or technical fires.

Abstract: Certain embodiments of the present invention provide a ventilator system and method for transferring heat and smoke from within a structure to outside the structure during a fire. The ventilator may include a housing being configured to receive heat and smoke through an intake port and expel heat and smoke through and exhaust port. The housing may have a channel between the intake port and the exhaust port wherein a motor creates airflow from the direction of the intake port to the exhaust port. The ventilator may also include an extension member having a first end and a second end. The first end may be connected to the intake port of the housing and the second end is configured for insertion into the structure.

Abstract: The invention relates to a device executed as small fire-hose (1), which is made of plastic material, such as e.g. polyethylene foil, at its one extremity having a coupling bag (3) for connection to any type of draw-off point (2, 14) of the water supply and preferably at its other extremity being provided with a nozzle (7) fastened to it, disposable fire-hose (1) and coupling bag (3) having a flat cross-section in its non-use condition and having an approximately circular cross-section in its using condition or water-filled condition, as a result of which the disposable fire-hose (1) can be stored in a very compact way when in its non-use condition and is extremely cost-effective due to its material and can be disposed of after use, if necessary.

Abstract: A filtered cake candle extinguisher device comprises a filter, a mouthpiece connected to the filter and a decorative cover for covering filter. A sound generator may be provided to enhance the user's enjoyment while using the extinguisher device to blow out a candle or candles.

Abstract: Improvements to a portable fire extinguisher are disclosed. The improvements allow for frequent and simpler untrained and automatic self servicing of a fire extinguisher. The improvements include an anti-bridging mechanism that can be articulated from the exterior of the chamber to fluff, mix or stir the powder within the chamber to keep it in a liquefied state. Additional improvements include a larger opening to more quickly fill and inspect the powder within the chamber. Another improvement includes the use of a CO2 canister located external to the chamber to allow easier servicing or replacement of just the CO2 canister as well as the ability to maintain the chamber in an un-pressurized condition, allows for non-HASMAT shipping. These features will extend the service intervals while maintaining the fire extinguisher in a ready condition.

Abstract: A spark suppression device includes a plurality of blades or vanes that are mounted transversely in a duct of an air handling/dust collection system communicating with a spark source. A controlled flow of air carries sparks from the spark source through the spark suppression device. Sparks are suppressed by turbulence created in the airstream from the blades that have a downstream curvature. The turbulence strips away a hot air bubble surrounding a spark ember, thereby effectively cooling the spark and significantly reducing combustion at the spark ember. Other attributes of the invention contributing to spark suppression include an overlapping arrangement of the blades that results in high-velocity impact of the sparks against the blades, thereby breaking up the spark embers into smaller embers, and creation of rapid increased pressure within the spark suppression device that also helps to strip away the spark ember from the surrounding hot air bubble.

Abstract: An air transfer apparatus which includes a door frame having a top, a bottom and opposed sides. The top, bottom and opposed sides define a door receiving cavity. A door is positioned within the door receiving cavity. The door is pivotally mounted to one of the opposed sides of the door frame for pivotal movement between an open and a closed position. The door has a first face and a second face. At least one fan is positioned in the door. The fan is adapted to either move air from the first face to the second face or from the second face to the first face. Preferably, the door is manufactured so it can be mounted with either side to the left or right and either end at the top or the bottom, so as to accommodate any conceivable installation.

Abstract: A portable fire extinguisher comprising a blower tube assembly that includes an outer tube with an inner mixing chamber disposed “upstream” from an adjacent outlet port that provides a passage to direct a discharge flow of mixed air and fire retardant out of the outer tube to extinguish a fire. The inner mixing chamber is adapted for communication with a portable reservoir containing a liquid fire retardant which is enabled to flow into the inner mixing chamber. The blower tube assembly further includes an inner tube that defines a blower tube inlet port adapted to receive the outlet port of a portable forced air blower. The inner tube is disposed for communication with the inner mixing chamber of the outer tube to enable a continuous volume of forced air to flow from a portable forced air blower, through the inner tube and into the inner mixing chamber of the outer tube.

Abstract: An installation includes spray nozzles (1) connected to a pressurized extinguishing liquid supply line (3). Fire detecting elements are connected to elements controlling the supply of the nozzles. The installation comprises a compressed gas container (6) connected by a pipe (5) to a tank (4) containing the liquid and which itself is connected to the supply line (3). The conduit (5) is normally closed by a valve (7) with controlled opening so as to enable compressed gas contained in the container to penetrate into the tank to evacuate the liquid towards the supply line of the nozzles. The nozzles are associated with respective electrically driven fans (9) arranged in series so that an electrically driven fan located downstream of an upstream electrically driven fan sucks in the larger volume between the downstream and upstream electrically driven fans.

Abstract: A fire sprinkler water catching apparatus includes a funnel member which has a funnel top portion, a funnel bottom portion, a funnel drain portion connected to the funnel bottom portion, and a pole-reception fitting. A drain hose is connected to the funnel drain portion. The end of a support pole is received in the pole-reception fitting. The fire sprinkler water catching apparatus of the invention is used to catch and carry away unwanted water that is sprayed from a fire sprinkler when the fire sprinkler is spraying water at an unwanted time, such as when a fusible link on the fire sprinkler is accidentally broken. Preferably, a flexible funnel cover is fitted onto the top of the funnel top portion. The flexible funnel cover includes a plurality of flexible and resilient funnel cover flaps.

Abstract: An installation includes spray nozzles (1) connected to a pressurized extinguishing liquid supply line (3). Fire detecting elements are connected to elements controlling the supply of the nozzles. The installation comprises a compressed gas container (6) connected by a pipe (5) to a tank (4) containing the liquid and which itself is connected to the supply line (3). The conduit (5) is normally closed by a valve (7) with controlled opening so as to enable compressed gas contained in the container to penetrate into the tank to evacuate the liquid towards the supply line of the nozzles. The nozzles are associated with respective electrically driven fans (9) arranged in series so that an electrically driven fan located downstream of an upstream electrically driven fan sucks in the larger volume between the downstream and upstream electrically driven fans.

Abstract: Method of extinguishing fire: A vacuum is used to remove one of three elements from the burning flames. Fire cannot be maintained without fuel, heat and air. Combustible materials such as wood, paper, fabric, coal and flammable liquids—all of these substances require oxygen in order for them to burn. A vacuum is applied using maximum suction capability and simultaneously exhausting the oxygen and air from the burning flames.

Abstract: A mobile self-propelled vehicle for fighting fires incorporates an extensible, trainable evacuation tube which can be introduced into a burning building or other enclosed space to remove smoke and gases by means of a power exhaust fan. Fire extinguishing materials can be injected into the space through the same evacuation tube.

Abstract: A firefighting monitor having an acceleration sensitive shut off valve that responds to acceleration of the monitor to reduce water flow through the monitor. The acceleration sensitive shut off valve is self-contained and requires no contact with an external surface or device. The valve closing speed may be modulated by a dampener device that slows the rate at which the valve closes to avoid damage from water hammer.

Abstract: Disclosed is a large scale mobile positive pressure blower designed to provide positive pressure ventilation for fighting fires in large spaces such as tunnels, mines, halls, warehouses large Box stores, high-rise buildings, shopping malls and the like. In accordance with the invention, a hydraulically or electrically operated ventilation blower is provided on an adjustable elevation device that may be mounted either on a movable vehicle or trailer, or in stationary locations in the vicinity of a structure opening or portal. The blower delivers a large volume of air having a conical shape into an opening at one end of the structure (e.g. a transportation tunnel) to force the smoke and hazardous gasses out through a different opening. One or more blowers may be used, depending upon the size of the entrance and the structure.

Abstract: A water containment and drainage device for activated sprinkler heads to limit the water damage to the buildings containing such fire or accident activated sprinkler heads. The device comprises of a sprinkler head receiving and water container portion, a drainage portion and a positioning apparatus. The sprinkler head receiving and water container portion comprises of a flexible, non-collapsible, fully posable tube whose interior forms a water receptacle area. An open end of the tube reversibly receives the activated sprinkler head into a water receptacle area formed by the interior of the tube. The other end of the tube is connected to one end of the drainage portion which comprises of a non-collapsible hose of determined length so that the water receptacle area and the interior of the hose are in continuous union.

Abstract: A method and composition for extinguishing fires using a plurality of firefighting agents wherein at least one of the agents has a distinctive visual coloration when thrown in a stream in the presence of the other agents; especially including for this purpose a dry chemical agent sufficiently colored that its presence can be detected when it is thrown together in a fluid stream with fluid and or foam.

Abstract: A mechanism for isolating energetic material feed streams from a material processing apparatus includes a deflector conduit having side panels defining a passageway from an entrance to an exit. Openings are formed in the side panels, and deflector baffles are positioned within the passageway adjacent each of the openings. The deflector baffles are arranged obliquely to the side panels so as to permit material to pass through the passageway toward the exit without falling out of the openings, but to deflect flames, propagating through the passageway toward the entrance, out of the openings to substantially prevent the flames from reaching the entrance. A conveyor may be used in conjunction with the deflector conduit to separate the conduit from a material feed hopper. A combustible conduit may be used to direct material into the deflector conduit from the end of a conveyor or from a feed hopper.

Abstract: 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 or at an air passage (7) in such a way that when the spinkler is activated it creates a suction from the fire space (1) into the air passage.

Abstract: A pressure ventilator of a type carried by firefighters and rescue workers to a burning building to provide either positive or negative pressure ventilation is characterized by a modular structure in which one module comprises a fan and electric motor unit mounted together in a frame on wheels with a handle and another module comprises a battery pack, motor controller, circuits, and connectable electric cables mounted together in a carrying case. The ventilator module has a carrying structure for mounting and holding the battery module, and the battery module has enough capacity to drive the fan in the ventilator module for at least twenty minutes without falling below a minimum voltage threshold. The motor controller in the battery module compares actual voltage to the threshold and disconnects the batteries from the motor in the ventilator unit when the actual voltage falls below the threshold.

Abstract: A siphon jet is attached to a dry hydrant which is in communication with a body of water to increase the flow of fluid to the dry hydrant and assist in overcoming the effects of atmospheric pressure and gravity in drawing the water. A pressurized fluid source can add fluid to the siphon assembly and this forces water from the body up the hydrant pipe. Also, the fluid from the pressurized fluid source can be added forward of a valve to fill the hydrant pipe which thus minimizes the duration of priming operations.

Abstract: 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 ventilation or air-conditioning duct (5) out-going from the shower room, at least one spray head (11a) sprays liquid in the form of small droplets, like a fog, into the ventilation or air-conditioning duct (5) to produce a suction, whereby to draw smoke out of the shower room. A sprinkler (6) in the space is arranged, upon release, to activate a further spray head (8) in the opening to produce a suction from said space, whereby to draw said smoke into the shower room for the ventilation or air-conditioning duct.

Abstract: 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 or at an air passage (7) in such a way that when the spinkler is activated it creates a suction from the fire space (1) into the air passage.

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: Apparatus including a monitor and a portable ground base comprising a liquid-carrying conduit having an inlet end and an outlet end. The inlet end is adapted to receive a liquid (such as water) from a supply, and the outlet end is attached to the intake of the monitor. The conduit of the base includes an intermediate portion that is normally close to the support or ground when the ground base is in the normal operating position. Mounted within the conduit is a valve that is movable between a closed position and an open position. The valve is biased toward the closed position by a mechanism including liquid flow through the conduit and a spring. A trip catch is connected between the valve and the conduit for releasably holding the valve in the open position to permit flow through the conduit.

Abstract: A dry (unpressurized) hydrant utilizes a hydrant pipe wherein a submerged end carrying a strainer assembly is placed at a predetermined depth within a body of water, such as a lake or a pond, with the unsubmerged end being located above ground adjacent the water surface. A check valve installed behind the underwater strainer allows the pipe to be filled with water delivered from a tank onboard a pumper truck. Flooding the pipe in this manner allows the pumper truck to then pump water from the lake or pond, through the hydrant, with little or no priming necessary so as to meet fire suppression demands. A vent valve located on the pumper intake connected to the unsubmerged end allows air to escape from the pipe during the filling process.

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: 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.