Thermo-sensible pyrotechnic system

摘要

System consists of a housing (100) containing a percussion pin (200) which moves inside a chamber (130) under effect of a spring, and a thermo-sensory element which holds the percussion pin in place while the temperature is below a certain level. The system also has a mechanical safety element in the form of a slider (300) which is able to move between retracted and deployed positions by the action of a spring (350).The percussion cap is carried by a second sliding component which has another thermo-sensory element to retain it in its non-operative position until a certain temperature level is reached, and the two thermo-sensory elements are made from different eutectic compounds, or from the same compounds but in different volumes, e.g. paraffin wax.