Back to results
US 2019/0154165 A1Published application
Compact circular linkage for a pushing actuator
AssigneeVistadelTek, LLC
InventorKim Ngoc Vu
Life of this patent
Estimating the term…
Abstract
A compact unitized mechanical linkage, which can be handled as a single piece within a valve top works, transmits force and motion of a piezoelectric actuator stack to a moveable element in a control valve. The linkage has few parts and all may be made at low cost.
Claims29
A linkage assembly to operatively couple an expanding valve actuator and a movable element of a valve housing of a valve, the linkage assembly comprising:
- a thrust plate having a thrust plate body and including a plurality of thru-slots defined in the thrust plate body and that extend axially through the thrust plate body;
- a lifting housing to engage the expanding valve actuator, the lifting housing including a plurality of prongs depending from the lifting housing and extending through at least one of the plurality of thru-slots;
- a ring nut secured to the valve housing and surrounding the plurality of prongs, the ring nut securing the thrust plate to the valve housing;
- and
- a lifting element secured to the plurality of prongs, the lifting element securable to the movable element.
2 more elements
Dependencies are inferred from the claim text.