Safety lockout for engine clutch

Details Safety lockout for engine clutch Safety lockout for engine clutch

1977-06-08

1978-08-29

Wyche, Benjamin W.

192 clutches and power-stop control

Clutches

Operators

192 86, F16D 2500

Patent

active

041097718

ABSTRACT:
Pneumatic actuation of an over-center clutch by a main control valve and fluid motor in the direction to engage the clutch is prevented by one or more safety lockout control valves each diverting the pneumatic pressure fluid from the main control valve to actuate the fluid motor in the direction of clutch disengagement while connecting the main control valve to drain. A single operative fluid pressure is employed.

REFERENCES:
patent: 2603327 (1952-07-01), King
patent: 2959260 (1960-11-01), Johnson et al.
patent: 3395783 (1968-08-01), Allin

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