MODULAR ACTUATOR SYSTEM FOR VALVES AND CHOKES

Title:

MODULAR ACTUATOR SYSTEM FOR VALVES AND CHOKES

Document Type and Number:

WIPO Patent Application WO2004100339

Kind Code:

A3

Abstract:

The invention contemplates a simple coupling means for interfacing linear acting actuator shafts with valves or hydraulic chokes. The coupling means of the present invention allows either an actuator or an interconnected valve or choke to be rapidly, safely, and efficiently interchanged with a replacement part. The present invention is broadly applicable to a wide variety of actuator types having rectilinear motion outputs and to a large variety of valve and choke types which are operated by linear motions, including gate valves with or without balanced stems.

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Inventors:

SCHMIDT DAVID A (US)
NEAL THOMAS E (US)
MCCASKILL JOHN W (US)
HORN GARY L (US)

Application Number:

PCT/US2004/013658

Publication Date:

March 24, 2005

Filing Date:

April 30, 2004

Export Citation:

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Assignee:

POWER CHOKES L P (US)
SCHMIDT DAVID A (US)
NEAL THOMAS E (US)
MCCASKILL JOHN W (US)
HORN GARY L (US)

International Classes:

F16K31/05; F16K39/04; (IPC1-7): E21B34/06

Foreign References:

US3361240A	1968-01-02
US4493336A	1985-01-15

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