Hand injector gas fire extinguisher

Details Hand injector gas fire extinguisher Hand injector gas fire extinguisher

1994-10-05

1996-12-31

Pike, Andrew C.

Fire extinguishers

Fluid systems

Gas

169 30, A62C 3502

Patent

active

055884920

ABSTRACT:
A hand injector for extinguishing fires through a two-stage fire extinguishing operation consisting of a cooling fire extinguishing step and an oxygen deficiency fire extinguishing step uses a fire extinguishing gas, such as a liquified gas including carbon dioxide contained in a cylinder. The hand injector has a firing pin unit for breaking a seal member of the cylinder, a retainer for maintaining the firing pin unit in an inoperative state, and a retainer operating device for operating the retainer by a manual operation. The retainer is fixed at its head portion by a bolt screwed to an upper surface portion of a cylinder receiver. Leg portions of the retainer are fitted in a recess formed in an upper portion of a shaft. A firing pin is fixed to a lower end of the shaft. The retainer operating device consists of a cam, which is adapted to be turned manually, whereby the leg portions of the retainer are opened to operate the fire pin.

REFERENCES:
patent: 3889752 (1975-06-01), Dunn
patent: 3893514 (1975-07-01), Carhart et al.
patent: 4972910 (1990-11-01), Fujiki
patent: 5123490 (1992-06-01), Jenne

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