Motorized tang drive system

Details Motorized tang drive system Motorized tang drive system

1986-10-02

1990-02-06

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318626, 182 2, 25112912, B66F 334

Patent

active

048990973

ABSTRACT:
The present invention provides an apparatus for controlling operation of a fluid control valve. In the preferred embodiment, the present invention operates a hydraulic control valve to operate a hydraulic apparatus. The control system of the present invention permits the pre-selected adjustable control of the acceleration and speed of movement of the apparatus to be controlled. Additionally, the control system permits the selection of pre-determined movement limits within which the operation of the hydraulic apparatus may be contained. The control apparatus also senses the amount of actuation of the control valve.

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