Patent · US Active

Actuating device and method of operating an actuating device

US8274245B2 · kind B2 · utility

7Cited by

4References

21Claims

0Family size

Assignee

CAMERON INTERNATIONAL CORPORATION · US

Inventors

Klaus Biester · Celle, DE
Peter Kunow · Berlin, DE
Norbert Lenz · Eppelheim, DE

Key dates

Filing date	Apr 13, 2007
Grant date	Sep 25, 2012
Priority date	—
Expiry date	Sep 21, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/2036
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An actuating device for displacing a control device, such as a gate valve or other control mechanism, in particular for use in oil or gas production systems, includes a motor-gear unit and a threaded spindle drive, which is operable by said motor-gear unit. The threaded spindle drive includes at least a threaded spindle and a screw nut. The threaded spindle is displaceable in an essentially axial-direction so as to displace the control device between an advance position and a retracted position. The threaded spindle drive further includes a position holding means holding the attained position of the threaded spindle. The position holding means is directly connected to a motor shaft of the motor-gear unit so as to apply a holding torque to said motor shaft.

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