Patent ID: 7240605

Claim:
An actuator with a variable run comprising a container body ( 2 ) a driving shaft ( 3 ), inserted in a cylindrical housing or pass-through hole of said container body, said driving shaft being moveable along a longitudinal axis (Y) of the actuator and operating pneumatically, characterized in that it comprises at least one pass-through hole situated on said container body substantially orthogonal to said movement axis of the shaft in which a cylinder ( 7 ) is integrated which operates so as to intercept the run of the driving shaft, creating a pre-established run thereof along said longitudinal axis (Y), the actuator further comprising a pin ( 72 ), sliding inside said cylinder, having a leg ( 722 ) which intercepts the run of the corresponding shaft when the pin is moving towards the inside of the actuator body in the direction of said shaft, said actuator further characterized in that when the leg of said pin is moved, it comes into contact with said sealing ring causing a run-end for the movement of the driving shaft.