Safety pressure relief valve assembly, components therefor and m

Details Safety pressure relief valve assembly, components therefor and m Safety pressure relief valve assembly, components therefor and m

1996-12-17

1999-07-06

Rivell, John

Fluid handling

Processes

Cleaning, repairing, or assembling

137315, 137382, 137542, 13754323, 137544, F16K 1506

Patent

active

059186194

ABSTRACT:
A safety pressure relief valve assembly is provided wherein the safety pressure relief valve assembly has a first tubular body with a first end and a second end, a wall of given thickness with a bore through the body with an internal flange and a valve support in the bore, a means on the first end of the body for attaching the body to the venting system of a fuel tank, a valve seat in the internal flange, a valve member adapted for resting on the seat and having a stem extending from one side of the valve member, a biasing means for biasing the valve member against the valve seat in a direction toward the first end, a discharge means in the second end having an enclosing flange for the second end, a second tubular body of larger internal diameter than the external diameter of the first tubular body with one of the open ends of the second tubular body affixed to the enclosing flange wherein the enclosing flange and second tubular body comprise means preventing the inclusion of foreign objects from entering the second end of the first body thereby keeping the safety pressure relief assembly in full operational condition at all times.

REFERENCES:
patent: 1644265 (1927-10-01), Noble
patent: 2000431 (1935-05-01), Aumack
patent: 2563563 (1951-08-01), Swenson
patent: 2781778 (1957-02-01), Lisciani
patent: 3129158 (1964-04-01), Rodgers
patent: 3797511 (1974-03-01), Selby
patent: 3976096 (1976-08-01), Kass
patent: 5060688 (1991-10-01), Sorensen
patent: 5141024 (1992-08-01), Hicks

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