A fire extinguisher includes a main dome partially surrounding an internal space housing agent. A secondary dome is mounted to the main dome and is inverted with respect to the main dome. The secondary dome can have a radius of curvature that is equal to, greater than, or less than that of the main dome. The discharge outlet can include a discharge outlet configured to discharge laterally relative to an axis of symmetry of the main dome and the secondary dome.

A fire extinguisher includes a main dome partially surrounding an internal space housing agent. A secondary dome is mounted to the main dome and is inverted with respect to the main dome. The secondary dome can have a radius of curvature that is equal to, greater than, or less than that of the main dome. The discharge outlet can include a discharge outlet configured to discharge laterally relative to an axis of symmetry of the main dome and the secondary dome.

A fluid dispensing apparatus may be used to dispense a paint fluid from a paint container that is under pressure and that has a pierceable membrane. The fluid dispensing apparatus may include a valve body having a bore, an adaptor having a bore and a piercing member, and a nozzle having a bore. The fluid dispensing apparatus may be operable to pierce the pierceable membrane to communicate the paint within the paint container with the adaptor bore and with the valve body bore. The nozzle may be operable to permit the paint to flow under the pressure out of the paint container, through the adaptor bore, through the valve body bore and through the nozzle bore to ambient.

The proposed technical solution relates to fire prevention equipment and can be used in industrial and civilian properties, including with an increased risk of fire, for locating hot spots, and also for efficiently extinguishing fires in facilities using automatic fire-extinguishing systems. The technical problem addressed by the claimed invention is to produce a fire-extinguishing device which does not have the drawbacks mentioned and has increased reliability, efficiency and manufacturability. The technical result of the claimed invention consists in elimination of the drawbacks of the prior art, in an increase in the reliability and manufacturability of a fire-extinguishing device and thus in an increase in the fire-extinguishing efficiency overall.

The proposed technical solution relates to fire prevention equipment and can be used in industrial and civilian properties, including with an increased risk of fire, for locating hot spots, and also for efficiently extinguishing fires in facilities using automatic fire-extinguishing systems. The technical problem addressed by the claimed invention is to produce a fire-extinguishing device which does not have the drawbacks mentioned and has increased reliability, efficiency and manufacturability. The technical result of the claimed invention consists in elimination of the drawbacks of the prior art, in an increase in the reliability and manufacturability of a fire-extinguishing device and thus in an increase in the fire-extinguishing efficiency overall.

In a system for measuring a fire suppressant or fire suppression propellant quantity, the system comprising: a base (102); a top plate (106) positioned to support a tank (22) of said fire suppressant or fire suppression propellant; a plurality of springs (112) positioned between the top plate and the base to support the top plate atop the base, the plurality of springs positioned to support the top plate along a range of motion between an extended condition and a retracted condition; a first magnetic member (142) mounted to the base; a second magnetic member (140) mounted to the top plate so that a spacing between the first magnetic member and the second magnetic member decreases as the top plate moves from the extended condition to the retracted condition. At least one of the first magnetic member and the second magnetic member is a permanent magnet. A magnetic field sensor (160) is positioned to detect changes in a magnetic field associated with changes in said spacing.

In a system for measuring a fire suppressant or fire suppression propellant quantity, the system comprising: a base (102); a top plate (106) positioned to support a tank (22) of said fire suppressant or fire suppression propellant; a plurality of springs (112) positioned between the top plate and the base to support the top plate atop the base, the plurality of springs positioned to support the top plate along a range of motion between an extended condition and a retracted condition; a first magnetic member (142) mounted to the base; a second magnetic member (140) mounted to the top plate so that a spacing between the first magnetic member and the second magnetic member decreases as the top plate moves from the extended condition to the retracted condition. At least one of the first magnetic member and the second magnetic member is a permanent magnet. A magnetic field sensor (160) is positioned to detect changes in a magnetic field associated with changes in said spacing.

There is provided a fire extinguisher comprising a fire extinguishing agent; a first mechanism configured to operate said fire extinguisher via a manual operation; a second mechanism configured to operate said fire extinguisher automatically; and wherein said fire extinguisher comprises at least one detector to detect the existence of a fire and cause the operation of said second mechanism.

There is provided a fire extinguisher comprising a fire extinguishing agent; a first mechanism configured to operate said fire extinguisher via a manual operation; a second mechanism configured to operate said fire extinguisher automatically; and wherein said fire extinguisher comprises at least one detector to detect the existence of a fire and cause the operation of said second mechanism.

A fire suppression system may include a tank and a manifold in the tank. The tank, when charged, holds a liquid pressurized with a gas. The manifold has an inlet coupled to receive a liquid flow from a lower portion of the tank and an inlet configured to receive a gas flow from a upper portion of the tank. An expansion chamber in the manifold receives the liquid flow and the gas flow and is shaped to mix the liquid and gas flows and thereby produce foam.