System for precise valve control

Details System for precise valve control System for precise valve control

1983-09-30

1985-09-24

Argenbright, Tony M.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 4892, 192 51, 192 8718, 74128, 74142, 74425, 251248, B60K 4122, F16D 2312, F16D 4700

Patent

active

045428140

ABSTRACT:
A system for precise positioning of a fluid control valve including a reciprocating piston at each end of a worm shaft, each to rotate the worm shaft in one direction only, through a scotch yoke and a rotary drive transmission. Selection of a valve determines which rotary drive is operated and a hydraulic piston clutch is engaged each time a particular drive is activated and remains engaged to hold a selected position.

REFERENCES:
patent: 2430627 (1947-11-01), Westbrook
patent: 2505260 (1950-04-01), Stevens
patent: 3078733 (1963-02-01), Emery
patent: 3203266 (1965-08-01), Willis et al.
patent: 3854561 (1974-12-01), Conde
patent: 4223770 (1980-09-01), Kranz

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