Oil wellhead fire extinguishing apparatus having adjustable supp

Details Oil wellhead fire extinguishing apparatus having adjustable supp Oil wellhead fire extinguishing apparatus having adjustable supp

1991-09-25

1993-09-28

Mitchell, David M.

Fire extinguishers

Mount, cabinet or guard

Movable relative to fire

169 69, A62C 300

Patent

active

052479994

ABSTRACT:
The present invention is designed to be mounted over a flaming oil wellhead to extinguish the flames. The invention includes a base having hydraulically operable arms designed to allow secure support of the base over the oil wellhead even in uneven terrain. A cap device is mountable on the base and includes tangentially arranged ports designed to supply the interior of the cap with a fluid such as liquid nitrogen to cool and extinguish the flames. The cap may include a labyrinth tortuous path restrictor forcing escaping combustion products and other gases to follow a tortuous path to atmosphere to thereby cause the gases to lose energy and cool as they escape.

REFERENCES:
patent: 1807498 (1931-05-01), Teed
patent: 1830061 (1931-11-01), Howe
patent: 4323118 (1982-04-01), Bergmann
patent: 5131444 (1992-07-01), Hunter, III
patent: 5191940 (1993-03-01), Alonso et al.

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