Raytheon Company

Delmer D Fisher

Brady Plummer

Robert W Plummer

According to certain embodiments, an arming system includes a first logic device and a second logic device that are both coupled to a detonation circuit operable to initiate a detonation device. The second logic device is operable to receive one or more first signals generated by the first logic device, determine a first fault condition of the first logic device according to the received one or more first signals, and disable the detonation circuit according to the determined first fault condition.

Safe arming system and method

According to certain embodiments, a detonation control system includes a controller circuit coupled to a manual switch and a detonation device. The detonation device is configured to activate an explosive. The controller circuit includes a memory operable to store one of a multiple time-to-fire settings representing a time delay from arming the detonation device to activation of the detonation device. The controller circuit is operable to store a first time-to-fire setting in the memory, store another of the multiple time-to-fire settings in the memory upon actuation of the manual switch, and repeat the step of storing another of the multiple time-to-fire settings in the memory for each actuation of the manual switch.

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Indianapolis, IN, United States of America

Delmer D Fisher