Patent ID: 6568422
Filing Date: 2003-05-27
Classification: F15B,F16K,Y10T

Abstract:
A locking mechanism operable for locking and unlocking a rotary valve actuator, said rotary valve actuator comprising a rotary shaft rotatable between a first rotary position and a second rotary position, said locking mechanism comprising:a rotary valve actuator member connected for movement with said rotary shaft, said rotary valve actuator member having a first stop surface; a valve lock element, said valve lock element being moveable between a valve operate position and a valve locked position, said valve lock element lockingly engaging said rotary valve actuator member in said valve locked position to prevent rotation of said rotary shaft between said first rotary position and said second rotary position; an adaptor plate for said rotary valve actuator, said valve lock element being mounted within said adaptor plate; and a first adjustable stop member mounted within said adaptor plate to adjustably determine said first rotary position when said valve lock element is in said valve operate position.