Ammunition and explosives – Igniting devices and systems – Electrical primer or ignitor
Reexamination Certificate
2010-07-27
2011-10-18
David, Michael (Department: 3641)
Ammunition and explosives
Igniting devices and systems
Electrical primer or ignitor
C102S202700, C102S206000, C102S215000, C102S340000, C102S351000, C102S357000, C102S530000, C089S001140, C244S054000
Reexamination Certificate
active
08037823
ABSTRACT:
A pyrotechnically powered actuator having a bellows that provides a force and stroke upon initiation is disclosed. The actuator includes a housing body with a first end and a second end. The bellows is coupled to the first end of the housing body. A cover is coupled to the second end of the housing body. An initiator is located within the housing body and includes a pyrotechnic material and a bridge element. The housing body, the bellows, and the cover define a hermetically sealed chamber. The bellows is compact, lightweight, and can withstand internal and external pressure at least as high as 3,000 psi. An exemplary embodiment includes a housing body that provides a compartment for adding supplemental pyrotechnic material. Further exemplary embodiments of the actuator include a chip initiator that requires less than 1 amp to function in less than 10 milliseconds.
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Diamond Michael N.
Nelson Steven David
Ritchie Robert S.
David Michael
Pacific Scientific Energetic Materials Company
Perkins Coie LLP
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