Compact powder fire-extinguishing device

A compact powder fire extinguishing device comprising

• a container filled with a fire extinguishing powder (3),
• means that generate a propulsive charge while being separated from the powder (3) by a piston (8),
• a wad (11) and a cover (14) sealing the container from an open end side,
• WHEREIN, said container with the fire extinguishing powder is made in the form of a single-use cartridge (1),
• said cartridge being separable from the fire extinguishing device by means of a reusable fast-action firing device (4),
• said fire extinguishing powder (3) being disposed inside a casing (2) of the cartridge (1) in a polymer tube (5), one end (6) of the tube is circumferentially fastened at an outlet of the casing (2) of the cartridge (1), and a second end of the tube (5) abuts a sleeve (7), said sleeve containing the piston (8) and said piston comprising an aperture (9),
• WHEREIN, a coin-shaped sealing disc (10) is mounted on the inside of the piston (8) opposite the aperture (9),
• said wad (11) is configured as a polyhedron with a pointed central part (12) and fins (13);
• said means that generate the propulsive charge are placed within the casing (2) of the cartridge (1) and are configured as an initiator in the form of a striker-type igniter-percussion cap (15) and an adjacent pyrotechnic gas generator (16),
• said gas generator being connected to a cavity of the sleeve (7), and
• WHEREIN, one side of the cartridge (1) is connected to the firing device (4), and is provided with a contoured surface (18)
• said firing device comprising
• a mechanism for fastening and discharging the cartridge that contains a collar (20) with flat curved clamping springs (24) located around the circumference of the collar (20) and
• a trigger mechanism (48), said trigger mechanism comprising
• a head (30) installed inside an aperture of an end wall of a cylindrical support (26), said head being freely moveable inside the aperture, (26)
• a flat striking spring (32) with a striker (33), which is in contact with a sear (34), said spring (32) being fixed to cylindrical brackets (35) and (36) integrated with a rod (37),
• a hammer (38) attached to the rod that connects with a trigger (41) and
• a safety catch (46).