Drive nut and torque plate assembly

Details Drive nut and torque plate assembly Drive nut and torque plate assembly

1977-05-25

1979-02-06

Schwadron, Martin P.

Valves and valve actuation

Mechanical movement actuator

Screw

251196, 251327, F16K 3150

Patent

active

041380916

ABSTRACT:
A gate valve gate is raised and lowered by a threaded stem. The stem threads into a separately formed nut that is secured to the gate.

REFERENCES:
patent: 1360164 (1920-11-01), Whiteman
patent: 1868811 (1932-07-01), Yarnall
patent: 2002647 (1935-05-01), Sorensen
patent: 2150254 (1939-03-01), Sorensen
patent: 2192331 (1940-03-01), Schaefer
patent: 2276620 (1942-03-01), Harrington
patent: 2385463 (1945-09-01), Penick

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