Abstract: An exemplary latchbolt assembly includes a latchbolt, a locking sleeve, and a roller engaged between the latchbolt and the locking sleeve. The latchbolt is configured to drive the roller from a first position to a second position as the latchbolt moves from a projected position to a depressed position. The locking sleeve includes a blocking surface and a recessed portion. When the blocking surface is aligned with the roller, the locking sleeve retains the roller in the first position, thereby retaining the latchbolt in the projected position. When the recessed portion is aligned with the roller, the locking sleeve permits movement of the roller from the first position to the second position, thereby enabling depression of the latchbolt.

Abstract: A method according to one embodiment includes receiving audio input by a microphone of an access control device that controls access through a passageway, processing an audio signal associated with the audio input to identify and authenticate a user, determining a command corresponding with the audio signal in response to identification and authentication of the user, and performing at least one action that corresponds with the command.

Abstract: 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.

Abstract: According to one embodiment, a cartridge includes a main explosive and an exploding foil initiator housed in a case. The exploding foil initiator includes metallic strips that are operable to initiate explosion of the main explosive in response to an electrical signal.

Abstract: According to one embodiment, a cartridge includes a main explosive and an exploding foil initiator housed in a case. The exploding foil initiator includes metallic strips that are operable to initiate explosion of the main explosive in response to an electrical signal.

Abstract: According to one embodiment of the disclosure, a remote explosive detonation system includes a transmitter and at least one receiver having a detonator. The transmitter transmits an electro-magnetic signal having a transmitter identification code that may be received by the receiver. The receiver initiates the detonator if the transmitter identification code matches an internal identification code stored in the receiver.

Abstract: 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.

Abstract: A convertible multipurpose missile launcher includes a launch rail structure on the launcher body with a first-missile launch rail on the bottom side of the launcher body extending in a longitudinal direction. The first-missile launch rail is dimensioned for a first missile. A second-missile launch rail is positioned on the bottom side of the launcher body and extends in the longitudinal direction. The second-missile launch rail is dimensioned for a second missile different from the first missile. The second-missile launch rail includes a stationary second-missile forward launch rail segment, and a movable second-missile aft launch rail segment. The movable second-missile aft launch rail segment is slidable on the launcher body, and preferably on the first-missile launch rail, between a forward position and an aft position and may be locked in these positions.