refillable portable fire extinguishers of hydropress - type

摘要

The device has outer and inner containers (7, 8) , and components (13) being provided for pumping air to a required pressure in the air space (14) between the outer and inner containers, and members being incorporated (11, 17) for filling the inner container (8) with extinguishing fluid to the required volume. The inner container (8) is directly connected to the hose (16, 21) which leads to the spreader mouthpiece (22). The member for pumping of pressure into the air space between the outer and inner containers comprise an air nipple (13) with automatic back-closing function. The hose from the inner container to the spreader mouthpiece contains a coupling with a cut-off tap for a conventional water pipe tap (11), whereby the flexible inner container can be filled with water to the desired volume directly from an existing water pipe.