Remote control valve operator
OwnerHarold L. Marksinventor
Life of this patent
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Abstract
A valve manipulating apparatus adapted to be remotely controlled includes a support assembly having one end releasably attachable adjacent a pipeline valve and another end supporting a longitudinally shiftable actuating assembly. A remotely excited, bi-directional motor in the actuating assembly engages the stem of the valve and is operable to alternately open and close the valve by rotating same. As the valve is manipulated, its stem either extends or retracts and during this movement, a coupler on the motor shaft follows the valve stem displacement and produces a corresponding displacement of the actuating assembly. Switch devices on the actuating assembly cooperate with adjustable stop elements carried by the support assembly to provide for automatic stopping of the motor operation at prescribed points.
Claims16
A remote control apparatus for manipulating a pipeline valve having a stem including;
- a support assembly having a valve end and an opposite actuating assembly end,
- means removably attaching said support assembly valve end adjacent a valve stem,
- an actuating assembly including a housing, shiftable means attaching said housing to said support assembly actuating assembly end,
- a motor in said housing and having a shaft, coupling means on said shaft engageable with the valve stem,
- means interlocking said coupling means relative the valve stem, and
- said shiftable attaching means allowing relative longitudinal displacement between said support assembly and housing whereby,
- rotation of said motor, shaft, coupling means and engaged valve stem produces an axial extension or retraction of the valve stem and a corresponding axial displacement of said housing as said support assembly remains stationary.
Dependencies are inferred from the claim text.