Seal for LP gas cylinder valve

Details Seal for LP gas cylinder valve Seal for LP gas cylinder valve

1977-06-02

1978-10-10

Cline, William R.

Valves and valve actuation

With correlated flow path

Tank

251152, 285354, F16K 5100

Patent

active

041192958

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: 2733937 (1956-02-01), Mowrer, Jr.
patent: 3092404 (1963-06-01), McWilliam
patent: 3167333 (1965-01-01), Hall et al.
patent: 3393930 (1968-07-01), Ziherl et al.
patent: 3511265 (1970-05-01), Martin

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