Valve assembly and method of making same

Details Valve assembly and method of making same Valve assembly and method of making same

1984-11-08

1987-09-01

Chambers, A. Michael

Fluid handling

Processes

Cleaning, repairing, or assembling

137315, 251144, 291571R, F16K 5100

Patent

active

046901647

ABSTRACT:
A valve assembly for a fluid-containing tank and method of making same are provided wherein such valve assembly has a flow passage therethrough and such flow passage has a central rectilinear flow axis and an inlet and an outlet which have central axes common with such axis. the valve assembly has a device which is operable from the bottom of its tank and is movable between open and closed positions thereof and once moved to its open position enables substantially free unobstructed flow of fluid through the valve assembly parallel to the axis and with minimum pressure drop to thereby enable a maximum rate of fluid transfer through such valve assembly, and the inlet is adapted to provide complete drainage of fluid within the tank.

REFERENCES:
patent: 2713955 (1955-07-01), Harbers
patent: 2889963 (1959-06-01), Johnson
patent: 3072139 (1963-01-01), Mosites
patent: 3233861 (1966-02-01), Stillwagon
patent: 3420501 (1969-01-01), Fritz
patent: 3656710 (1972-04-01), Shaw
patent: 4184663 (1980-01-01), Rollins et al.
patent: 4394002 (1983-07-01), Polley
patent: 4422473 (1983-12-01), Polley
patent: 4440379 (1984-04-01), Behle et al.

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