Torque limited drive for manual valves

Details Torque limited drive for manual valves Torque limited drive for manual valves

1988-09-15

1989-06-06

Kyle, Deborah L.

Valves and valve actuation

Lost motion between actuator and valve

Overload release

192 56R, F16K 3144

Patent

active

H00006360

ABSTRACT:
The present invention is directed to a torque-limiting handwheel device for preventing manual valves from being damaged due to the application of excessive torque during the opening or closing operation of the valves. Torque can only be applied when ridges in the handwheel assembly engage in channels machined in the face of the baseplate. The amount of torque required for disengagement of the ridges from the channels is determined by the force exerted by various Bellville springs and the inclination of the side faces of the channels.

REFERENCES:
patent: 622912 (1899-04-01), Corey, Jr.
patent: 2148481 (1939-02-01), Frank
patent: 2608377 (1952-08-01), Streun
patent: 3060706 (1962-10-01), Hess
patent: 3441115 (1969-04-01), Gunther
patent: 3455331 (1969-07-01), Baumann et al.
patent: 3985213 (1976-10-01), Braggins
patent: 4637502 (1987-01-01), Mayr et al.

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