Abstract: Systems and methods are disclosed for the generation of a treatment compound fluid to inhibit the ripening process of agricultural products, the application of the treatment compound fluid to a confined atmosphere at a location at which the products are stored, and the collection of a sample of the treated atmosphere. In one form, the system includes a treatment compound generator and a sampling subsystem. The treatment compound generator has an exit port fluidly connectable to the confined atmosphere and is configured to generate a treatment compound fluid in-situ. The sampling subsystem includes an inlet port fluidly connected to a pump and a collection chamber. The inlet port is fluidly connectable to the confined atmosphere such that the sampling subsystem can collect a sample of the treated atmosphere through the inlet port and store the sample within the collection chamber.

Abstract: A method of fire suppression may include injecting a reactive agent into a reaction zone to produce a catalytically active species for fire suppression and conveying the catalytically active species to a fire to catalytically interfere with flame chemistry of the fire. Fire in a fuel tank may be suppressed by injecting the reactive agent into a convective flow of a mixture of fuel and oxidizer in a fuel tank, the reactive agent reacting in the fuel tank to release a species which catalytically interferes with flame chemistry to suppress fire in the fuel tank. Fire at an airplane crash may be suppressed by releasing the reactive agent from the container at the crash site to produce an active species to catalytically interfere with a fire at the crash site.

Abstract: A gas supply system primarily designed for use with fire sprinkler systems which includes a control system which uses flow demand to automatically determine the mode of operation and switch between providing air and nitrogen. The gas supply system can operate either in standard nitrogen generation mode where nitrogen is supplied to the reservoir tank and/or sprinkler system or in a bypass mode, where sufficient pressure is only obtained by directly supplying air. The gas supply system can provide for improved safety in operation as well as the ability to operate the sprinkler system primarily when filled with nitrogen supervisory gas.

Abstract: A system includes a first valve fluidly connected to a first vessel and a second valve fluidly connected to a second vessel. The first valve includes a body and a piston. The body includes first and second ports and a bore having a longitudinal axis. The first port is in communication with the bore and an interior of the first vessel. The second port is in communication with the bore, the second valve, and an atmosphere exterior to the first vessel. The piston is movable along the longitudinal axis of the bore. A first position of the piston blocks the first port; a second position of the piston allows fluid communication between the first and second ports. The first valve is configured so that fluid pressure from the second valve, communicating through the second port, urges the piston to the second position.

Abstract: A portable storage containing apparatus for use in safely storing a variety of different sensitive and/or flammable products. A portable storage containing apparatus for use in providing a localized fire extinguishing and suppression mechanism in an emergency situation. A portable storage containing apparatus comprising a manual release cabinet having a carbon dioxide fire suppression system for fire suppression of easily ignitable flammable materials. A portable storage containing apparatus comprising a flame arrested for use in preventing passage of flame, while simultaneously allowing for free ventilation.

Abstract: A system includes a first valve fluidly connected to a first vessel and a second valve fluidly connected to a second vessel. The first valve includes a body and a piston. The body includes first and second ports and a bore having a longitudinal axis. The first port is in communication with the bore and an interior of the first vessel. The second port is in communication with the bore, the second valve, and an atmosphere exterior to the first vessel. The piston is movable along the longitudinal axis of the bore. A first position of the piston blocks the first port; a second position of the piston allows fluid communication between the first and second ports. The first valve is configured so that fluid pressure from the second valve, communicating through the second port, urges the piston to the second position.

Abstract: A method of fire suppression may include injecting a reactive agent into a reaction zone to produce a catalytically active species for fire suppression and conveying the catalytically active species to a fire to catalytically interfere with flame chemistry of the fire. Fire in a fuel tank may be suppressed by injecting the reactive agent into a convective flow of a mixture of fuel and oxidizer in a fuel tank, the reactive agent reacting in the fuel tank to release a species which catalytically interferes with flame chemistry to suppress fire in the fuel tank. Fire at an airplane crash may be suppressed by releasing the reactive agent from the container at the crash site to produce an active species to catalytically interfere with a fire at the crash site.

Abstract: An example valve includes: (i) a pilot seat member comprising a first channel and a second channel, a pilot seat, and a pilot sleeve portion comprising a pilot chamber and a cross-hole; (ii) a pilot check member disposed in the pilot chamber and subjected to a biasing force of a setting spring, wherein the pilot check member is configured to be subjected to a fluid force of fluid in the second channel; and (iii) a solenoid actuator sleeve slidably accommodated about the pilot sleeve portion, wherein the solenoid actuator sleeve comprises a cross-hole and an annular groove, wherein the cross-hole of the solenoid actuator sleeve is fluidly coupled to a second port of the valve, and the annular groove is configured to selectively fluidly couple the first channel to the second channel based on a position of the solenoid actuator sleeve.

Abstract: Systems and methods of an integrated fluid control valve and valve actuator assembly are provided. The assembly includes a pressure operated fluid control valve for controlling the flow of liquid from a liquid supply piping system into a sprinkler piping system of a fire protection system when transitioning the fire protection system from a stand-by state to an actuated state. The control valve defines a valve chamber for holding a pressurized fluid to prevent the flow of fluid through the control valve. A valve actuator is coupled to the fluid control valve housing for setting of the fluid control valve in an unactuated ready state and for operating the fluid control valve automatically and/or manually. The assembly has a common supply port to supply fluid to the control valve and the actuator and a common discharge port connected to multiple devices that can place the system in an actuated state.

Abstract: A subterranean tank can consist of at least a casing string that has a containment section disposed between first and second end regions. The containment section may have a first width while each of the first and second end regions have a second width. The first width can be greater than the second width of the respective first or second end regions. The entire casing string may be sealed to maintain a gas at 5,000 psi or more until a gas delivery assembly attached to the first end region releases gas stored in the casing string.

Abstract: An enclosure, vehicle, and method for containing an overheating device are provided. An enclosure includes a body and a door that form a volume. The body includes is connected to a Venturi tube that is in communication with a fluid flow path flowing across an opening at an opposite end. In the event an overheating device is placed in the enclosure, a pressure sensor measures a pressure in the volume and a controller opens a first valve in a flow path through the Venturi tube so that air is pumped from the volume via the Venturi effect. The first valve is closed when the measured pressure drops below a threshold pressure. The enclosure can also include an extinguishing agent that can be expelled into the volume if a temperature sensor measures a temperature above a threshold temperature.

Abstract: A system (1) and method for operating a liquid gas evaporator (3), comprising an evaporator (3), a trough (5) carrying the evaporator (3), a housing (7) which surrounds the evaporator (3) on three sides, at least one detector (9) for sensing liquid gas arranged in the trough (5), a line (11) for the distribution of vapor D on the fourth, non-housed side of the evaporator (3) arranged at the margin of the trough (5) which is not closed off by the housing (7), a feed (13), connected to the line (11), and a regulating valve (15) provided on the feed (13) and connected to the detector (9) and at least one shut-off valve (17).

Abstract: A method of fire suppression may include injecting a reactive agent into a reaction zone to produce a catalytically active species for fire suppression and conveying the catalytically active species to a fire to catalytically interfere with flame chemistry of the fire. Fire in a fuel tank may be suppressed by injecting the reactive agent into a convective flow of a mixture of fuel and oxidizer in a fuel tank, the reactive agent reacting in the fuel tank to release a species which catalytically interferes with flame chemistry to suppress fire in the fuel tank. Fire at an airplane crash may be suppressed by releasing the reactive agent from the container at the crash site to produce an active species to catalytically interfere with a fire at the crash site.

Abstract: A wire release mechanism includes two components with adjacent longitudinal fingers and a wire that is wound about the fingers. The wire restrains one of the components in one position and includes a higher resistance fuse that causes the wire to be loosened about the fingers to allow that component to move to another position due to the flow of electrical current through the fuse.

Abstract: A fire extinguishing system is disclosed in which the system comprises a fire extinguisher having an opening, and a valve assembly covering the opening. The valve assembly includes a valve movable from a first position in which the valve seals the opening of the fire extinguisher to a second position in which the valve exposes the opening to allow expulsion of fire suppression material(s) from the fire extinguisher. A release mechanism, which may be in the form of a solenoid or a manual release mechanism, is provided for moving the valve to its open position. Methods of using the aforementioned fire extinguisher to suppress a fire are also disclosed.

Abstract: A fire suppression system includes at least one first gas source containing an inert gas, at least one second gas source containing an organic halide gas, a distribution network connected with the first gas source and the second gas source to distribute the inert gas and the organic halide gas, and a controller. The distribution network includes a common manifold, input lines connecting the first gas source and the second gas source with the common manifold, output lines leading from the common manifold, and flow control devices. The controller is in communication with the distribution network and configured to distribute the inert gas responsive to a fire threat signal and determine whether to distribute the organic halide gas based upon a location of a fire threat.

Abstract: A spray device (100) for spraying a liquid (L), the device comprises a tank (10) containing the liquid (L) for spraying, at least one liquid ejector member (20) in communication with said tank (10), and a pyrotechnic gas generator (30) for pressurizing the liquid inside said tank and propelling it under pressure out from said tank. According to the invention, in at least one mode of operation, the ejector member (20) is in communication with the gas generator (30) in such a manner as to enable it to be fed with the gas generated by said generator (30).

Abstract: The present invention relates to equipment for fire fighting and fire prevention. The invented fire equipment comprises a fire blanket, a fire extinguisher and a housing assembly for housing the fire blanket and the fire extinguisher. The housing assembly enables the fire blanket and the fire extinguisher to be easily and quickly accessible and removable.

Abstract: Systems and methods for fire and smoke containment and extinguishing are described. Systems may include a fire and smoke containment and extinguishing apparatus including an open recess with one or more walls. The open recess may substantially prevent passage of fire, smoke and fumes. The apparatus may also include one or more seals for closing the open recess, and a fire extinguishing system. Methods for fire and smoke containment and extinguishment may include providing a fire and smoke containment and extinguishing system; inserting an item into the recess of the apparatus; closing the recess; and deploying the fire extinguishing system.

Abstract: A method of fire suppression may include injecting a reactive agent into a reaction zone to produce a catalytically active species for fire suppression and conveying the catalytically active species to a fire to catalytically interfere with flame chemistry of the fire. Fire in a fuel tank may be suppressed by injecting the reactive agent into a convective flow of a mixture of fuel and oxidizer in a fuel tank, the reactive agent reacting in the fuel tank to release a species which catalytically interferes with flame chemistry to suppress fire in the fuel tank. Fire at an airplane crash may be suppressed by releasing the reactive agent from the container at the crash site to produce an active species to catalytically interfere with a fire at the crash site.

Abstract: The present system provides an integrated fire suppression system that includes all components other than system piping to nozzles or emitters in a single integrated panel. The system allows the entire panel to be inspected and analyzed, and installed, repaired, or maintained in a single operation, dramatically reducing time spent on site and reducing the qualifying process as well. The assembly of the panel is off-site, typically under the inspection of any qualifying agencies. Once assembled, the system can remain qualified for rapid installation at any future time, allowing easy replacement of faulty panels or consumables.

Abstract: Provided are a variable power optical system in which the value of the entire length with respect to the image height is reduced and the aberration is well corrected, and an image pickup device comprising the same. Specifically provided is a variable power optical system comprising, in order from the object side, at least a first lens group having negative refractive power, a variable power group having positive refractive power, and a final lens group having positive refractive power, wherein the variable power group is provided with, in order from the object side, a first lens element having positive refractive power, a second lens element, and a third lens element, the second lens element has a convex shape on the object side, and the final lens group comprises a positive lens, the variable power optical system satisfying the following conditional expression: 10?VdLg?45 ?1.0<(R2a?R2b)/(R2a+R2b)<1.

Abstract: A method of fire suppression may include injecting a reactive agent into a reaction zone to produce a catalytically active species for fire suppression and conveying the catalytically active species to a fire to catalytically interfere with flame chemistry of the fire. Fire in a fuel tank may be suppressed by injecting the reactive agent into a convective flow of a mixture of fuel and oxidizer in a fuel tank, the reactive agent reacting in the fuel tank to release a species which catalytically interferes with flame chemistry to suppress fire in the fuel tank. Fire at an airplane crash may be suppressed by releasing the reactive agent from the container at the crash site to produce an active species to catalytically interfere with a fire at the crash site.

Abstract: A method of fire suppression may include injecting a reactive agent into a reaction zone to produce a catalytically active species for fire suppression and conveying the catalytically active species to a fire to catalytically interfere with flame chemistry of the fire. Fire in a fuel tank may be suppressed by injecting the reactive agent into a convective flow of a mixture of fuel and oxidizer in a fuel tank, the reactive agent reacting in the fuel tank to release a species which catalytically interferes with flame chemistry to suppress fire in the fuel tank. Fire at an airplane crash may be suppressed by releasing the reactive agent from the container at the crash site to produce an active species to catalytically interfere with a fire at the crash site.

Abstract: A plug element for conducting tests of a well, a pipe or the like, comprising one or more plug bodies of disintegratable/crushable material set up to be ruptured by internally applied effects, is disclosed. The plug element of the invention comprises an internal hollow space set up to fluid communicate with an external pressure providing body, and the plug is designed to be blown apart by the supply of a fluid to the internal hollow space so that the pressure in the hollow space exceeds an external pressure to a level at which the plug is blown apart.

Abstract: A fire suppression system includes a high pressure inert gas source that is configured to provide a first inert gas output and a low pressure inert gas source that is configured to provide a second inert gas output. A distribution network is connected with the high and low pressure inert gas sources to distribute the first and second inert gas outputs. A controller is operatively connected with at least the distribution network to control how the respective first and second inert gas outputs are distributed.

Abstract: A calibration and verification system and method for dynamically controlling sequential delivery of mixtures containing a fire suppression agent to detection locations to simulate an agent discharge during a flight operation of an aircraft and for allowing direct monitoring of the concentration amounts at the detection locations to adjust a testing operation accordingly. Each of the mixtures is prepared with a precise concentration amount of the agent. The system and method include a remote test sequence unit for determining an optimal testing time period during a flight operation to remotely control the discharge and monitoring of the agent. Prior to the optimal testing time period, an airflow at an altitude of the flight operation is drawn through each of a plurality of detectors to tare out the characteristics of a surrounding environment using a processor, thereby establishing a measurement baseline for each of the plurality of detectors.

Abstract: Provided herein are devices, systems and methods utilizing flow of a medically safe inert gas to prevent fires in operating rooms during electrosurgical procedures. A device is disposed around or proximate to or integrated into the tip of an electrosurgical instrument or tool and is in fluid contact with a source of a medically safe inert gas. The gas is flowed around or envolopes the tip as the electrosurgical instrument or tool is utilized. The presence of the medically safe inert gas displaces oxygen, thereby preventing or suppressing fires that may be ignited by sparks generated during use of the tool.

Abstract: A scalable cargo-fire-suppression agent distribution system and method is disclosed. A supply source unit subset of a set of fire-suppression agent supply source units is selected based on an operation condition to provide a selected supply source unit subset, and a fire-suppression agent from the selected supply source unit subset is distributed during the operation condition.

Abstract: Nozzles (22) for reducing noise generated by the release of gas from a hazard suppression system (10) are provided. The nozzles (22) comprise a plurality of partitions (42, 44, 46, 48) that define a serpentine gas flow path through the nozzle. The flow path causes the gas to undergo a plurality of expansions and directional changes thereby reducing the velocity of the gas and dampening the generation of sound waves as the gas exits the nozzle (22) through the nozzle outlet (40).

Abstract: A self contained fire extinguisher system that does not need external power in order to sense or initiate a release of a fire suppression medium, includes components configured to utilize a linear sensor network that can be connected to at least one and/or different sources of fire suppression mediums. A linear temperature sensing cord can be routed over a large area not practical with individual sensors. The cord can also actuate several and different sources of fire suppression mediums to maximize the suppression of a fire.

Abstract: A local fire shield is provided for protecting an attachment point of a fireproof system in an engine during a fire event. The local fire shield includes a mounting plate mounted on the attachment point; and a cover coupled to the mounting plate for covering the attachment point during the fire event.

Abstract: A fire fighting system for extinguishing a fire, which has a fuel cell for producing a nitrogen-enriched cathode exhaust air. The fuel cell is supplied with air and a fuel. Within the fuel cell, the air is then reduced to a determined oxygen content. The exhaust air is supplied to the fire source.

Abstract: A fire suppression system is disclosed that includes a suppressant source system configured to hold fire suppressant. In one example, the fire suppressant is an inert gas. A temperature sensor is arranged in a suppression area and is configured to detect an undesired temperature or temperature increase in the suppression area. A suppression system is in communication with the temperature sensor and in fluid communication with the suppressant source system. The suppression system is configured to selectively release the fire suppressant to the suppression area at initial and subsequent rates. The initial rate is greater than the subsequent rate. The subsequent rate is configured to displace a volume from the suppression area through the leakage system in response to the undesired temperature.

Abstract: An automated storage system is presented, in which a stacker crane can properly operate even in a high temperature environment, while simplifying the construction of the system facility. The automated storage system includes articles storage racks having a plurality of storage spaces for storing articles; a stacker crane 3 which freely travels along the travelling path, and a ground controller H which is on the ground side to control the operation of the stacker crane, and a fire fighting nozzles 26 on the platform 20. The article storage racks and the stacker crane are located in a high temperature environmental space Z2, while the extinguishant supply source 27 and the ground side controller are in a normal temperature environmental space Z1. A control line 31 is established from the ground side controller and the stacker crane, and a fire fighting hose 30 is from the extinguishant supply source to the fire fighting nozzle.

Abstract: A propulsion device for an agent, such as an extinguishing or cooling agent, contained in a cavity has at least a cap and a port configured to open above a calibrated pressure inside the cavity. A pressure generator is fastened to the cap and triggers the propulsion of the agent. The pressure generator has at least two containers, each having an exit ending inside the cavity and releasing a propulsion gas. At least one container is pressurized with an inert-type gas, such as helium, suited for minimal temperature fluctuations induced inside the cavity during a relief of pressure of the gas from at least one of the containers. When the gas expands it is the direct mechanical propellant of the agent.

Abstract: A compact device for ejecting a fluid including two chambers separated by a separating element of piston type. One of the chambers contains the fluid intended to be ejected, the other chamber is a pressurization chamber, the pressurization of which can cause translational movement of the separating element and ejection of the fluid. The pressurization chamber includes a thimble capable of sealably separating the inside of the pressurization chamber from the side walls of the reservoir. Thus, a seal between two chambers is perfect and durable without degrading slidability of the piston.

Abstract: Described herein are an inerting method as well as an inerting system (1) for preventing and/or extinguishing fire, wherein a gas separation system (3, 4) is provided to set and/or maintain a predefinable oxygen content, which is reduced compared to normal ambient air, in the spatial atmosphere of an enclosed room (2), said system separating off at least a portion of the oxygen contained in an initial nitrogen/oxygen gas mixture and thereby provide a nitrogenated gas mixture at the outlet (4a) of the gas separation system (3, 4). In order to achieve the setting and maintaining of a predefined inerting level with the lowest possible expenditure of energy, the description herein provides for a control device (5) designed to control the gas separation system (3, 4) such that the residual oxygen content of the nitrogenated gas mixture is changed as a function of the oxygen content prevailing at that moment in the spatial atmosphere of the enclosed room (10).

Abstract: A fireproof system is provided for protecting a structure during a fire event. The system includes a fire resistant panel defining a first attachment opening and disposed adjacent to the structure; a canister including a side wall defining a first end and a second end, and an end wall enclosing the first end and defining a second attachment opening that is aligned with the first attachment opening; a fastener extending through the canister at the second attachment opening and the fire resistant panel at the first attachment opening such that the canister, the fire resistant panel, and the structure are fastened together; and a fire retardant agent disposed within the canister in an inactive condition and configured to transition out of the second end of the canister in an active condition at a predetermined temperature.

Abstract: A fire detection system includes a detection tube and a sensing device. The detection tube contains a sensing fluid having a first physical condition and a second physical condition. The sensing fluid is in the first physical condition below a temperature threshold, and is in the second physical condition above the temperature threshold. The sensing fluid is at least partially liquid in the first physical condition. The sensing device is movable to open in response to a transition of a portion of the sensing fluid from the first physical condition to the second physical condition.

Abstract: The present invention relates to a hypoxic fire prevention system and building construction and method therefor. The hypoxic fire prevention system comprises: a central supply container for hypoxic gas; a number of compartments connected to the container via connecting conduits; and at least one distributor provided in each compartment and operatively connected to a connecting conduit for the purpose of distributing the hypoxic gas.

Abstract: The invention relates to a preventing and extinguishing fires in enclosed spaces in which the internal air atmosphere is not permitted to exceed a predefined temperature value. In order not to have to increase the cooling capacity of an air conditioning system when inert gas is added to the internal air atmosphere to set or maintain a specific inertization level within an enclosed space, a system for the regulated discharging of inert gas into same is provided. The system includes a container for the provision and storage of the inert gas in liquified form, and a vaporizer connected to the container for vaporizing at least a portion of the inert gas and discharging same into the internal air atmosphere of the enclosed space. The vaporizer thereby directly or indirectly extracts the heat energy needed to vaporize the liquid inert gas from the internal air atmosphere of the enclosed space.

Abstract: To present an injection head having silencing function for gas type fire extinguisher capable of reducing the noise generated upon release of fire extinguishing gas. In a gas type fire extinguisher using a fire extinguishing gas, a silencer 3A is disposed in an injection head 1A installed for releasing a fire extinguishing gas into a fire extinguishing area.

Abstract: A fire protection system for reducing the danger of fire, which has a fuel cell for producing a nitrogen-enriched cathode exhaust air. The fuel cell is supplied with air and a fuel. Within the fuel cell, the air is then reduced to a determined oxygen content. The exhaust air is supplied to the room to be protected.

Abstract: The fire extinguishing ball includes an outer ball cage, an inner ball cage freely rotatable within the outer ball cage about one axis, and an internal fire extinguishing assembly carried by the inner ball cage and freely rotatable therein about a different axis. The internal fire extinguishing assembly includes a hollow ball-shaped body containing compressed gas and fire extinguishing agents. A valve assembly attached to the top of the body permits refilling of the body and dispersion of the contents during operation. The internal fire extinguishing assembly is connected to the inner ball cage so that the valve assembly will be disposed on top when the fire extinguishing ball is at rest. The ball can be tossed or rolled towards fires in difficult to reach areas. Exposure to heat opens the valve in the valve assembly to thereby disperse the contents of the body and extinguish the flames.

Abstract: In-computer fire suppression, the computer comprising an in-computer flame detector and an in-computer fire extinguisher including detecting, by an in-computer flame detector, a flame, releasing, by the in-computer fire extinguisher, an extinguishing agent in response to the flame detector detecting the flame; and disabling the power supply to the computer having within it the in-computer flame detector and the in-computer fire extinguisher.

Abstract: In-computer fire suppression, the computer comprising an in-computer flame detector and an in-computer fire extinguisher including detecting, by an in-computer flame detector, a flame, releasing, by the in-computer fire extinguisher, an extinguishing agent in response to the flame detector detecting the flame; and disabling the power supply to the computer having within it the in-computer flame detector and the in-computer fire extinguisher.

Abstract: A method of manufacturing a fire-extinguishing agent for a fire extinguisher and a fire extinguishing apparatus is provided. The fire-extinguishing agent is manufactured by dissolving 55 g to 65 g of diammonium hydrogen phosphate in 300 to 350 mL of hot water at 70° C. to 90° C. to prepare a solution, dissolving 6 g to 8 g of ammonium sulfate in the prepared solution, dissolving 170 g to 190 g of potassium carbonate in the resultant solution, and adding, to the resultant solution, 25 to 35 mL of the undiluted solution of an aqueous film-forming foam fire-extinguishing agent. The total amount of the fire-extinguishing agent is adjusted to 600 mL. A throw-type fire extinguisher having a total weight of 700 g to 800 g is produced by charging a container with 600 mL of the fire-extinguishing agent.

Abstract: A new bi-directional horizontal spraying aerosol fire-extinguishing apparatus is disclosed, which comprises a shell structure, an aerosol generator including an aerosol generating agent and disposed inside the shell structure, and a control unit for initiating the aerosol generator. The bi-directional horizontal spraying aerosol fire-extinguishing apparatus of the present invention is characterized in that both ends of the shell structure or of the aerosol generator are respectively provided with an aerosol exhaust passage. The advantages of the present apparatus are in that it can reduce the spraying time of the aerosol extinguishing agent in the case of ensuring the fire-suppression efficiency, and increase the charge capacity of the fire-extinguishing apparatus, so that the capacity efficiency of the present apparatus is totally increased, and the present apparatus is easy and safe to be installed and does not occupy the useful space.

Abstract: Disclosed herein is a fire extinguishing gas emission control apparatus for a protected area. The fire extinguishing gas emission control apparatus includes a mode conversion unit, and a control unit. The mode conversion unit includes a stop switch capable of selecting an on-mode used to prevent fire extinguishing gas from being emitted into the protected area or an off-mode used to allow the fire extinguishing gas to be emitted into the protected area. The control unit performs control such that the interlock circuit unit of the gas fire extinguishing equipment apparatus is put in on or off-mode based on the on or off-mode of the stop switch. The mode conversion unit further includes a Radio Frequency (RF) card recognition unit capable of recognizing an RF card in which the ID of a passer-by who enters the protected area is stored.