Fluid pressure actuators indicator

Details Fluid pressure actuators indicator Fluid pressure actuators indicator

1978-11-01

1980-04-22

Swisher, S. Clement

Signals and indicators

Indicators

Rectilinear indicator with actuating means

116285, 116327, G01D 2100

Patent

active

041989210

ABSTRACT:
A fluid pressure actuator such as an hydraulic top link has an external indicator device for marking the position of the piston within the actuator cylinder. The indicator has a collar which clamps on to the piston rod and a finger which extends longitudinally along the outside of the actuator cylinder to provide a direct reading of the piston position. An indirect indication may be provided by linking the longitudinally extending finger to a spring loaded tape indicator, or to an indicator arm which moves angularly across a scale.

REFERENCES:
patent: 2704047 (1955-03-01), Lushenko
patent: 3004346 (1961-10-01), Quenot
patent: 3077179 (1963-02-01), Evanson
patent: 4052954 (1977-10-01), Roy

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