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US 6,135,417 AGranted
Valve spindle actuator
AssigneeEJA Engineering Limited
InventorsMartin J. Wadsworth, Stephen L. Foster
Life of this patent
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AssigneeEJA Engineering Limited
InventorsMartin J. Wadsworth, Stephen L. Foster
Estimating the term…
An actuator for controlling the rotation of a valve spindle relative to a valve body (5). The actuator is in the form of an actuator body which receives a rotatable hub (6). The actuator body (3) is secured to the valve body by for example a mounting plate (7) which is bolted to the valve body or straps which are clamped to pipework connected to the valve body. The hub is retained in a predetermined position adjacent the valve body by the actuator body such that it may rotate with the valve spindle. Jaws (15) are mounted on the hub which may be clamped into engagement with the valve spindle so that torque applied to the hub by for example an actuator bar (12) is transmitted to the valve spindle.
An actuator for controlling the rotation of a valve spindle relative to a valve body, the actuator comprising an actuator body which in use is secured to the valve body, a hub retained by the actuator body so as to be rotatable relative to the actuator body about the rotation axis of the spindle, jaws movably mounted on the hub and displaceable into engagement with the spindle, and means for clamping the jaws in engagement with the spindle such that torque applied to the hub is transmitted to the spindle.
An actuator for controlling the rotation of a valve spindle relative to a valve body, the actuator comprising an actuator body which in use is secured to the valve body, and a hub mechanically coupled to the spindle via jaws movably mounted on the hub and displaceable into engagement with the spindle such that torque applied to the hub is transmitted to the spindle, wherein straps are mounted on the actuator body in orientations such that these straps may be clamped onto pipework connected to the valve body to secure the actuator body to the valve body.
An actuator for controlling the rotation of a valve spindle relative to a valve body substantially as hereinbefore described with reference to the accompanying drawings.
Dependencies are inferred from the claim text.