Fire extinguishers – Mount – cabinet or guard – Movable relative to fire
Patent
1992-04-28
1994-01-04
Mitchell, David M.
Fire extinguishers
Mount, cabinet or guard
Movable relative to fire
169 49, 169 69, A62C 306
Patent
active
052752445
ABSTRACT:
The present invention provides an apparatus and process to extinguish fires in oil wells by encircling the nucleus of the fire by creating a barrier of isolation of the fuel. The apparatus expands gases in the gaseous and liquid states and directs such gases upon, under and around the nucleus of fire, encircling it at 360 degrees and isolating it completely from the atmospheric air, while at the same time causing the convenient cooling of the nucleus of fire, thereby avoiding any possibility of auto-ignition. The process and apparatus of extinguishing fires in oil wells either in land or at sea, is also disclosed which uses a derrick type hoist, to place the apparatus around the fire, and to apply simultaneously a non-combustible gas in the liquid state (for example, carbon dioxide CO.sub.2, or bromochlorine-difluormetane, or nitrogen or any other commercially known gas like HALON 1211), and the same gas in the gaseous state.
REFERENCES:
patent: 1697376 (1929-01-01), Wasson
patent: 3685584 (1972-08-01), Gracia
patent: 4323118 (1982-04-01), Bergmann
patent: 5154234 (1992-10-01), Carrico
Bello de Sousa Rego Jorge Maria
Mitchell David M.
Nunes de Almeida Fernando Jorge
Pike Andrew C.
Risso-Gill James Edward
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