Patent · US Active

Hybrid manual and hydraulic actuator override

US9500294B2 · kind B2 · utility

6Cited by

4References

20Claims

0Family size

Assignee

GE Oil & Gas Pressure Control LP · US

Inventors

Christopher Taylor Herman · Houston, US
Mark Viator · Houston, US
Keith Adams · Redwood City, US
Fauad Saleem · Houston, US

Key dates

Filing date	Feb 4, 2014
Grant date	Nov 22, 2016
Priority date	—
Expiry date	Nov 7, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K31/508
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An apparatus for overriding a valve actuator to move a valve stem to a second position includes an override body with a central axis. A piston is located within the override body. A bushing is non-rotatably carried within the override body. An override shaft is in threaded engagement with the bushing and extends through a sealed orifice in the override body. Fluid pressure applied to the piston causes the bushing to engage the valve actuator and push the valve stem, and alternatively, rotation applied to the override shaft causes the bushing to move linearly to engage the valve actuator and push the valve stem.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.