Drop tube assembly with shut-off valve and method for assembling

Details Drop tube assembly with shut-off valve and method for assembling Drop tube assembly with shut-off valve and method for assembling

1992-05-22

1993-08-17

Walton, George L.

Fluid handling

Processes

Cleaning, repairing, or assembling

137433, 141198, F16K 3124, F16K 3300

Patent

active

052359999

ABSTRACT:
A tank filling drop tube assembly (2, 48) includes a drop tube (16, 50) and a linear motion shut-off valve assembly (24). One embodiment includes a barrier (30) which seals the interior of the drop tube. Outlet ports (32) are formed through the drop tube above the barrier. A restrictor sleeve (26, 58) is mounted around the outside of the drop tube just below the outlet ports. The restrictor sleeve is connected to a float (36) at the upper end (10) of the drop tube. When the tank (4) is substantially filled, the float lifts the restrictor sleeve to seal the outlet ports to help prevent overfilling of the tank.

REFERENCES:
patent: 351200 (1886-10-01), Montgomery
patent: 461383 (1891-10-01), Guild
patent: 772369 (1904-10-01), Parrish
patent: 1339750 (1920-05-01), Foister
patent: 1373237 (1921-03-01), Gunderson
patent: 1470213 (1923-10-01), Black
patent: 1508903 (1924-09-01), Strandt
patent: 1522982 (1925-01-01), Strandt
patent: 2106340 (1938-01-01), Conover
patent: 2122866 (1938-07-01), Lippold
patent: 2940467 (1960-06-01), Smith

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