Patent ID: 9726287
Date: 2017-08-08
CPC Classifications: F16F,F16J

Claim:
1. A gas cylinder actuator with overtravel safety device, comprising a tubular jacket for gas containment, which is closed hermetically at one end by a bottom provided with a gas filling valve and at the opposite end by a head portion, which is provided with a hole for a passage of a stem with a piston, said jacket, said bottom and said piston forming a gas expansion and compression chamber, wherein said head portion comprises an annular body, which is fixed internally to said jacket, and is provided with a central hole for the passage of said stem with the interposition of dynamic sealing means, static sealing means being interposed between said annular body and said jacket and a control element for controlling the descending motion of a slider of a press with which the actuator is associated being provided and protruding from said annular body or from said jacket, said control element being preset to selectively move in order to break or deform said static and dynamic sealing means.