Patent ID: 9291265
Filing Date: 2016-03-22
CPC Classification: F16F,F16J

Claim Text:
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 the passage of a stem with a piston, said jacket, said bottom and said piston forming a gas expansion and compression chamber, first dynamic sealing means being interposed between said stem and said head portion of said tubular jacket, said bottom being axially movable with respect to said jacket and second sealing means being interposed between said bottom and an internal surface of said jacket that surrounds said bottom, said jacket being a control element for controlling the descending motion of a slider of a press with which the actuator is associated, said jacket being preset to selectively move with respect to said bottom in order to break or deform or render ineffective in general said second sealing means.