Patent ID: 7104518
Filing Date: 2006-09-12
Classification: F16K,Y10T

Abstract:
1. A device for taking manual control of an automatically controlled rotary valve to provide a method of providing lockable positive position control comprising: (a) a housing for mounting a valve actuator and valve, having a set of locking holes arranged to align with a locking hole in a handle when said handle is engaged with a coupling thus disconnecting said valve actuator from said valve, (b) said coupling contained in said housing slides up a driven piece against a set of springs and away from a drive piece by the use of said handle, (c) said handle engages said coupling with a set of ears formed to fit a lifting surface of said coupling and when said coupling is clear of said driven piece, a set of tabs on the underside of said handle engage said driven piece taking manual control of said valve, whereby any normal valve powered by a rotary actuator may be manually and locally controlled and locked in any number of fixed positions with said handle and returned to said automatic control with removal of said handle without the need of any other tools.