Re-armable separation screw with low induced shock

摘要

Separation component (1) of screw (8) holding two sub-assemblies together, is effected by a liberation sleeve (5) actuated by a pressurized gas source (3). To dampen the action at the end of its stroke, gas fills a chamber (19) below piston head (12) of liberation sleeve which is then sealed by movement of head and increase of pressure in sealed chamber acts as damper to prevent induced shock at end of its stroke.