Ammunition and explosives – Igniting devices and systems – Ignition or detonation circuit
Reexamination Certificate
2007-04-03
2007-04-03
Carone, Michael J. (Department: 3641)
Ammunition and explosives
Igniting devices and systems
Ignition or detonation circuit
Reexamination Certificate
active
11147980
ABSTRACT:
The present invention is directed to a system and a method for accurately locating a penetrating-type weapon within a shelter for detonation at a desired target site. The method includes reliably and accurately detecting thin layers of a shelter by use of a weapon frequency induced by a vibration in a portion of the weapon. The weapon frequency is detected and at least one harmonic frequency of the weapon frequency is analyzed to determine whether a deceleration threshold event has occurred. In one embodiment, the harmonic frequency may be compared to a target frequency which is associated with the deceleration of the weapon during penetration of a layer of media. In another embodiment multiple weapon frequencies may be detected, analyzed, or compared to detect the penetration of a layer of media.
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Alliant Techsystems Inc.
Carone Michael J.
Hayes Bret
TraskBritt
LandOfFree
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