Abstract: An automatic stovetop fire suppressor is activated by a shuttle actuator. The self-contained and closed container device provides a gradual release of a fire suppressing agent in a desired distribution pattern. A method of reliable and spatial agent release are provided herein. A plastic cone shaped lid seals on the bottom of a can and forms a closed container. The closed container is filled with a fire suppressing agent. An initiator charge is housed external to the container of fire suppressing agent and is fuse activated. The activated charge displaces the shuttle. As the shuttle displaces, vertical support for the bottom cone lid is removed and a compression spring breaks a circumferential seal between the bottom lid and container cylindrical sidewall and lowers the bottom lid exposing a radial opening. Fire suppressing agent flows out of the radial opening, suppressing a stovetop fire.

Abstract: An automatic stovetop fire suppressor with suppressor activation triggering an audible alert of a fire condition and method are provided herein. A plastic bottom lid is secured to a bottom of a can, forming a closed container. A fire suppressing agent and a sound board are housed within the closed container. As the fire suppressor actuator is triggered, the bottom lid lowers releasing the fire suppressing agent and tripping a sound board alert switch. A microcontroller generates a desired fire condition signal which is played across a low voltage magnetic transducer. The suppressor is user friendly, provides an automated release of fire suppressing agent in the presence of a stovetop fire, and emits a continuing audible alert signal until a user disables the same. The fire suppressing agent and battery powered sound board are stored in the closed from manufactured end to activation of the suppressor in a fire condition.

Abstract: An automatic stovetop fire suppressor using a compressed spring to lower a bottom lid upon thermal glass bulb fracture is provided herein. A plastic lid seals on the bottom of a can and forms a closed container. The closed container is filled with a fire suppressing agent. A compressed spring extends when a thermal glass bulb fractures. The extending spring lowers the bottom lid to open the closed container. Fire suppressing agent flows out of the radial opening, suppressing a stovetop fire with minimal or no splashing of cooking oil. A center post is secured to a top wall of the container. A ledge, or bottom support, secured to the container catches the bottom lid to limit the radial opening height. A gradual release of a fire suppressing agent in a desired distribution pattern and method of gradual and spatial agent release can be provided with a cone-shaped bottom lid.

Abstract: The present invention relates to a fire detection system arranged for detecting fire by detecting a pressure drop in a detection conduit (15) caused by rupture of the detection conduit (15). The system comprises a detection fluid container (13) for holding a pressurized detection fluid, the detection conduit (15) which is connected to the detection fluid container (13), and a valve assembly controlling the supply of detection fluid from the detection fluid container (13) to the detection conduit (15).

Abstract: An automatic stovetop fire suppressor providing a gradual release of a fire suppressing agent in a desired distribution pattern and method of gradual and spatial agent release are provided herein. A plastic cone shaped lid seals on the bottom of a can and forms a closed container. The closed container is filled with a fire suppressing agent. An initiator charge breaks a designed breaking point of a reduced horizontal cross sectional area when fuse activated. The bottom lid drops down exposing a radial opening. Fire suppressing agent flows out of the radial opening, suppressing a stovetop fire with minimal or no splashing of cooking oil. An initiator housing is affixed to a top wall of the can and serves as the welding point for securing the plastic lid. A travel limiting member attached to the bottom lid catches on a shoulder of the initiator housing to limit the radial opening height.

Abstract: An automatic self-contained fire suppression system and method are provided herein. Stovetop fires are a well known residential and commercial hazard. The fire suppression system described mounts on a back wall or back splash above the stove mount. By mounting on the back wall, the system is free from interconnections with apparatus mounted above the stovetop, such as hoods, microwave ovens, lights, fans, and vents. Using a hopper containing fire suppressing matter, a power spring, drive shaft, and a bladed spinner, fires suppressing powder is distributed over the stovetop surface. The fire suppression action is triggered automatically via failure of a heat sensitive frangible link.

Abstract: An apparatus and method provides a solenoid interlock coupled to a booster actuator. The booster actuator and solenoid interlock operate with a low energy input and a high energy output using mechanically stored energy.

Abstract: Example embodiments provide a device for protecting an inner space of an object against fire, including a housing provided with at least one passage opening; an aerosol-forming extinguishing element arranged in the housing and which may include a container for holding extinguishing material which can be activated at a fixed activating temperature; at least one outlet opening which can be connected to the passage opening in the housing and along which the activated extinguishing material can be carried into the inner space of the object so as to extinguish the fire; an activating element for bringing at least part of the extinguishing material to the activation temperature; at least one detection unit arranged in or close to the housing for detecting at least one physical and/or chemical parameter representative of fire in the inner space; and a control unit arranged in the housing for causing thermal activation of the extinguishing element by the activating element when a preset activation value of the detect

Abstract: A multi-stage fire suppression system according to various aspects of the present invention is configured to deliver a fire suppressant material in response to multiple detections of a fire condition over time. In one embodiment, the multi-stage fire suppression system comprises at least two pressure tubes each having a different internal pressure. Each pressure tube is adapted to generate a pneumatic signal in response to exposure to a different trigger event. The pneumatic signal is used to activate a suppression system and release the fire suppressant material from a container. The multi-stage fire suppression system may also be configured to signal a secondary hazard detection system that a fire has been detected.

Abstract: An apparatus to suppress a localized fire may include a pressurized tank of fire suppressant and a valve coupled to the tank. In case of a fire, a pneumatic fire sensor may open the valve to release the fire suppressant.

Abstract: An apparatus to suppress a localized fire may include a pressurized tank of fire suppressant and a valve coupled to the tank. In case of a fire, a pneumatic fire sensor may open the valve to release the fire suppressant.

Abstract: Extinguishing-medium container includes a tubular body (2) which can be coupled together with a first and a second end piece (5, 6), which second end piece (6) has at least one outlet duct (33) for ejection of extinguishing medium (26) by a propulsion member (30) The extinguishing-medium container (1) can be charged with extinguishing medium (26) in the whole of its inner space bounded by the inner side (71) of the tubular body (2), the first and second end piece (5, 6) and a separation element (29), which separation element (29) is, in a charged state, arranged closely adjacent to the first end piece (5).

Abstract: A housing unit includes two parts that define a fire-smothering chemical storing interior volume. The housing unit is transported to a target area of a forest fire by an aircraft and dropped onto the target area. An explosive charge is located inside the housing unit and is detonated when the housing unit impacts the ground. The explosion associated with the detonated charge separates the two parts of the housing and disperses the chemical from the open housing unit.

Abstract: The invention relates to an apparatus for fire-fighting comprising a fire-extinguishing nozzle (4) connected to an extinguisher fluid supply (3) via a pipe (2) and comprising an alarm device (5) which delivers a warning signal at the beginning of a fire-extinguishing process. In such an apparatus the risk of leaks occurring is reduced and effective alarming of the surroundings at the beginning of the fire-extinguishing process is ensured according to the invention by the fact that the alarm device (5) comprises a pressure-actuatable switching device connected to the pipe (2) which triggers the warning signal in the event of an increase in the pressure prevailing in the pipe (2).

Abstract: A fire extinguisher selectively operable either manually or automatically is disclosed. The fire extinguisher comprises a container (100), a body (200), a discharge nozzle (600), an operating rod assembly (300), and an operating lever (400). The container (100) contains an extinguishing medium (110) under a pressure. The body (200) is fitted to the upper end of the container (100) and has a passage for releasing the extinguishing medium (110) under a predetermined condition. The discharge nozzle (600) is fitted to one portion of the body (200) to communicate with the passage and discharges the extinguishing medium (110). The operating rod assembly (300) manually controls an opening of the passage by applying a predetermined external force or automatically controls an opening of the passage under a predetermined temperature condition e operating lever (400) is located at the other portion of the body (200) and applies the predetermined external force to the operating rod assembly (300).

Abstract: The present invention is an automatic fire extinguisher that is ideally suited for use with electric or gas stoves. The automatic fire extinguishing device is designed and configured to be removably secured to any sized commercial or residential range hood so as to offer protection by having a device that will automatically extinguish a fire safely, quickly and efficiently. The structure and design of the fire extinguisher is such that it is installed easily and will be nonobtrusive and still provide for an aesthetically pleasing hood while offering protection to the consumer. The system of the present invention comprises a hollow housing that maintains a dispersing media for extinguishing a fire. A mechanical movement device is located within the housing. The mechanical movement device is in contact with the housed media. In use, once a fire is detected, this mechanical movement device will force the housed media to the outlet and innately provide a device that can utilize any media for extinguishing a fire.

Abstract: A fire suppressant device that may be rendered automatic by exposing the device to an elevated temperature. The preferred device comprises a canister housing with a uniform cross section throughout its length, and includes a piston member disposed for sliding movement within the canister housing. The canister housing, preferably cylindrical, for containing a fire suppressant fluid, features in a preferred embodiment a nozzle mechanism that includes a cap member temporarily fixed to the spray nozzle thereof by a solder having a known melting point. Disposed between the cap member and spray nozzle is a compression spring biasing the cap member. When the canister housing is exposed to temperatures of at least the melting point of the solder, the solder melts or softens allowing the cap member to be released under the influence of the compression spring, whereby fire suppressant fluid within the canister housing is released against a fire.

Abstract: A fire suppression valve for use with a cannister of fire suppression material. The valve has a housing with a central connection for attachment to the cannister and communicating with a central chamber. The central chamber has a relatively smaller outlet port on one side and diametrically opposite thereto a concentric and relatively larger piston port. A two-stage piston operates inside the central chamber to control access to the outlet port. In the closed position, the pressure of the fire suppression material serves to bias the two-stage piston toward the open position. The two-stage piston is oriented along an axis that is angled with respect to the orientation of the central connection, to thereby minimize the amount of vertical space required by the valve maximize cannister size for a given space limitation.

Abstract: A fire safety device for controlling the spread of fire in a structure. The invention comprises a base plate, a smoke detector, a syringe, and a cover. The syringe has a reservoir containing a fire retardant chemical. A fuse link holder has a melting fuse link that maintains a plunger assembly in position, and a spring is loaded behind the plunger. The syringe also has a nozzle in open communication with a supply line, which is in open communication to the reservoir. When a sufficiently high ambient temperature is reached, the fuse link melts, releasing the piston rod from the fuse link and allowing the coil spring to urge the plunger toward the other end of the syringe, and forcing the fire-retardant chemical from the nozzle. When smoke is present, the smoke detector sounds an audible alarm.

Abstract: A flame sensing device is connected to complete a circuit to supply current to an electromagnet to release fire extinguishing fluid to extinguish the flames. The flame sensing device includes a first spring which extends when heated, and a second spring in compression acting to pull an end of the first spring to close a contact to provide the current to the electromagnet.

Abstract: A passive explosion barrier is provided for use in mining operations in suppressing mine explosions. The barrier basically comprises a receptacle or tub which contains an explosion suppressing substance, such as water, and is mounted on a frame adjacent to the roof of the mine. The tub includes a pair of integral support lips at the front and rear edges thereof which are beveled at the sides and which constitute the sole support for the tub. In operation, wind from an explosion will cause the lip disposed toward the explosion to distort and curve inwards and disengage from the frame so that the tub falls, pivoting about the other lip. In an alternative embodiment, the sides of the tub are more flexible than the lips of the tub, and distortion of the sides in response to wind forces causes disengagement of the lip facing the explosion.

Abstract: A compact portable fire extinguisher is described which distributes through the action of centrifugal force, a fire extinguishing liquid or chemical over a well defined area. In one embodiment of the invention a spring wound bell-shaped dispensing housing is constrained against rotational movement by a band secured to the housing and a non-rotatable bottom plate. The band, which is locked in position by a fusible element, also serves to seal the liquid or chemical dispensing apertures which are peripherally disposed about the bottom portion of the bell-shaped housing. When the fusible element parts in the presence of an abnormally high temperature condition, signaling the presence of an incendiary situation, the band falls away from the bottom plate and the housing simultaneously permitting the spring wound housing to commence rotating and the liquid or chemical extinguisher to be discharged through the peripherally disposed apertures.

Abstract: A passive explosion barrier for suppressing the effects of an explosion in a mine gallery, or the like, comprises a receptacle containing an explosion suppressing substance adapted to be supported by framework adjacent the mine roof. In one embodiment, a corrugated face plate is hinged to the base of the receptacle on one side thereof. First and second support flanges are formed respectively on the upper end of the face plate and on the rim of the receptacle on the side thereof opposite the plate. The receptacle is mounted to the framework with the support flanges resting on first and second beams and with the face plate viewing the explosion source and oblique to a horizontal plane. The weight of the receptacle, and friction between the face plate flange and first beam, prevent the receptacle from releasing due to accidental disturbances. However, the force of wind accompanying an explosion acts against the face plate, causing it to both lift from the first beam and pivot toward the receptacle.