초록 ▼

Miniature arm fire and safe and arm devices include an electrically operated pyrotechnic initiation device (5) to generate a detonation wave upon command and a movable pressure barrier (9) that blocks propagation of the detonation wave if the device is not intended to be fired and opens a window (12

Miniature arm fire and safe and arm devices include an electrically operated pyrotechnic initiation device (5) to generate a detonation wave upon command and a movable pressure barrier (9) that blocks propagation of the detonation wave if the device is not intended to be fired and opens a window (12) to transfer the detonation wave externally of the device. The detonation wave may in alternate embodiments be a subsonic flame front and pressure wave or a supersonic shock wave, respectively. An electromagnet (7) may serve to move the pressure barrier. Detonation waves output from the device have application in igniting an explosive train, either directly or indirectly, the latter by operating an electrical switch. In the arm fire device, the barrier automatically prevents a detonation output when electrical power is removed from the device. In the safe and arm device, the barrier, once moved out of the way, remains out of the way, even when electrical power is removed. Various forms of miniature single operate electrical switches are described that may be operated by the foregoing devices.

대표청구항 ▼

1. A miniature arming device having an armed state and an unarmed state, comprising:a MEMS ignition device for producing a pyrotechnic output at a first location in response to application of an electric signal; pyrotechnic output control means, having an armed state and an unarmed state, for routin

1. A miniature arming device having an armed state and an unarmed state, comprising:a MEMS ignition device for producing a pyrotechnic output at a first location in response to application of an electric signal; pyrotechnic output control means, having an armed state and an unarmed state, for routing said pyrotechnic output from said first location to a second location when in said armed state and blocking said pyrotechnic output from said second location when in said unarmed state; a substrate, said substrate supporting said MEMS ignition device and said control means; and wherein said pyrotechnic output control means comprises: a channel for communicating a pyrotechnic output, said channel having an input and an output; a pyrotechnic barrier, said pyrotechnic barrier normally blocking said channel; and an electromagnet for moving said pyrotechnic barrier to unblock said channel when said electromagnet is energized, wherein a pyrotechnic output may pass through said channel to said second location.