Arm-fire devices and methods for pyrotechnic systems

An ARM-FIRE device for a pyrotechnic system, comprising:

• a first pyrotechnic;
• a second pyrotechnic configured to be ignited by the first pyrotechnic;
• and
• a shutter mechanism between the first pyrotechnic and the second pyrotechnic, the shutter mechanism including a first hole and a second hole, the second hole being configured to move between a first position offset from the first hole and a second position aligned with the first hole, the shutter mechanism comprising:
• a base including the first hole defining a slot, and
• a body configured to move relative to the base, the body including the second hole and a protrusion received in the slot.

A pyrotechnic system comprising:

• a pyrotechnic charge;
• and
• an initiator including a first pyrotechnic and a second pyrotechnic to define an ignition train between the initiator and the pyrotechnic charge;
• and
• a shutter mechanism disposed between the first and second pyrotechnics to interrupt the ignition train the shutter mechanism including:
• a base including a first hole;
• a body including a second hole, the body being linearly slidable with respect to the base in moving from a first position to a second position, the first and second holes being offset from one another in the first position to interrupt the ignition train from the first pyrotechnic to the second pyrotechnic, the first and second holes being aligned with one another in the second position of the body to permit access of the ignition train from the first pyrotechnic to the second pyrotechnic;
• and
• an actuator configured to move the body from the first position to the second position;
• and
• the first hole of the base defines a slot and the body comprises a sled having a protrusion slidably received in the slot of the base.