Safety and arming device for high-G munitions

Ammunition and explosives – Igniting devices and systems – Arming devices

Reexamination Certificate

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Details

C102S222000, C102S229000, C102S231000, C102S235000, C102S249000, C102S251000, C102S254000, C102S256000

Reexamination Certificate

active

07819062

ABSTRACT:
A representative embodiment of the invention provides a MEMS-based safety and arming (S&A) device having a shuttle movably connected to a frame by one or more bowed springs. The device has an electrical path adapted to electrically connect the frame and a contact pad. In the initial state, the electrical path has an electrical break. If the inertial force acting upon the shuttle (e.g., during launch) reaches or exceeds a first threshold value, then displacement of the shuttle with respect to the frame causes the electrical break to close. If the inertial force reaches or exceeds a second threshold value greater than the first threshold value, then a latching mechanism employed in the S&A device latches to keep the electrical break irreversibly closed thereafter.

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