Seal for LP gas cylinder valve and method and tool for installat

Details Seal for LP gas cylinder valve and method and tool for installat Seal for LP gas cylinder valve and method and tool for installat

1975-02-12

1976-04-06

Lanham, C. W.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29401C, 29427, 29428, 137 15, B23P 1500

Patent

active

039479420

ABSTRACT:
An O-ring seal for installation in an LP gas cylinder valve with a method and tool for installing the seal in the valve. The LP gas valve includes an outlet passage opening into a chamber within the main body of the valve which in turn is connected to a passage which opens into a cylinder tank. The outlet passage threadedly receives a hollow cylinder through which a stem projects. The stem includes an enlarged bullet shaped end projecting through an annular seat within the outlet passage and into a tapered portion of the outlet passage. An O-ring seal is installed on the annular seat effecting a seal between the valve and stem while spacing the enlarged bullet shaped end of the stem from the tapered portion of the outlet passage. A plate wrench has a hexagonally shaped hole through which a hexagonally shaped nut on the hollow cylinder projects. The wrench is used to tighten the stem with respect to the O-ring seal. Means are provided on the plate wrench for storing spare O-ring seals.

REFERENCES:
patent: 966870 (1910-08-01), Stoddard
patent: 2966083 (1960-12-01), Cheney
patent: 3467413 (1969-09-01), Madrelle
patent: 3479068 (1969-11-01), Brittain
patent: 3615109 (1971-10-01), Brinda et al.
patent: 3755876 (1973-09-01), Beasley

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