Abstract: A high strength polymer-based cartridge having a first end; a neck disposed at the first end and a shoulder disposed below the neck to form a bottleneck cartridge. A second end is opposite the first end and an insert is engaged to the second end. A propellant chamber is formed between the shoulder and the insert and has a volume. An extension extends from the neck opposite the shoulder and a cap is formed on the extension, partially sealing the propellant chamber.

Abstract: This disclosure describes systems, methods, and apparatus for detecting and displaying a number of rounds in a firearm magazine comprising a maximum number of N rounds. The magazine may comprise a follower, magnets on the follower, and <N magnetic switches arranged along a path of the magnets when the follower moves along a length of the magazine, the switches configured to activate based on a magnetic field exceeding a threshold, and a first antenna arranged on an inside of the magazine and parallel to a firing direction of the firearm, and configured to wirelessly transmit a round count indication to a second antenna on the firearm, the round count indication based on the round count data, the second antenna affixed to an inside of a magazine well of the firearm and mostly overlapping with the first antenna.

Abstract: A process for manufacturing a ballistic resistant article including steps: a) stacking a stretchable lamina of ultra-high molecular weight polyethylene (UHMWPE) and a stretchable continuous film of a polymer as organic matrix material to form a lamina-film stack, the continuous film not being an UHMWPE film; b) elongating the stack at a temperature below the melting point of the lamina, to an elongation ratio of at least 2, thereby providing a UHMWPE film with an organic matrix material in which the UHMWPE film is co-stretched with the film of polymer as organic matrix material; c) aligning a plurality of films to form a layer of films; d) stacking at least two layers of films to form a sheet; e) stacking a plurality of sheets to form a stack of sheets, and consolidating the sheets prior to and/or after step e) by applying pressure and optionally heat. Also, a ballistic-resistant article.

Abstract: A wheel arm (114) for a chassis (140) of a towed howitzer system (100). The wheel arm (114) comprises a chassis coupling feature (116) centred on a wheel arm pivoting axis (160), and a wheel coupling feature (118) centred on a wheel rotation axis (162). The chassis coupling feature (116) is spaced apart from the wheel coupling feature (118). The wheel arm (114) comprises a lever engagement feature (122). The lever engagement feature (122), the wheel coupling feature (118) and the chassis coupling feature (116) are provided in series along the length of the wheel arm (114).

Abstract: A technique for facilitating deployment and stowing of a ballistic shield on a vehicle includes providing a central armored panel having a hinged connection to a base, which may be coupled to or integral with the vehicle. The hinged connection includes an axle and a set of torsion springs configured to exert a lifting torque on the central armored panel relative to the base, such that the central armored panel is movable about the hinged connection for assuming both an upright, deployed position and a laid-down, stowed position.

Abstract: A trigger unit for a firearm, including a trigger bar that lies below the trigger axis. A trigger lever has a rear which accommodates at least one disconnector. A sear, rotatable about a sear axis can be biased by means of a sear spring. The hammer axis, the trigger axis and the sear axis are arranged parallel to one another and parallel to a transverse direction. The trigger lever has a recess and the sear is at least partially arranged within. The sear axis and the trigger axis coincide. The sear limits rotation of a disconnector joint formed on the underside of the disconnector; the bearing encloses the disconnector joint at least partially.

Abstract: A firearm locking system includes a magazine plug assembly and a locking bracket. The magazine plug assembly has an outer body configured to fit within a magazine well of a firearm and includes a locking mechanism partially contained within the outer body. The locking mechanism includes a locking bar configured to partially extend into a barrel of the firearm when an actuatable end of the locking bar is pivoted from an unlatched position to a latched position. The locking bar is then held in the latched position by a locking bracket that is secured to the base of the magazine plug assembly by inserting the actuatable end of the locking bar into a cooperatively sized slot within the locking bracket and then inserting a padlock shackle into an opening within the actuatable end of the locking bar.

Abstract: A rock drilling unit and method for charging drilled holes. The rock drilling unit includes a feed system for feeding initiators and rock breaking material into the drilled holes. The rock drilling unit is also provided with one or more communicating devices for communicating with the wireless initiators.

Abstract: A handheld personal security device comprising a computer processor, at least one trigger switch, noise generator, wireless transceiver, a directional defensive mechanism, and an electronic camera having a field of view. The defensive mechanism projects at least one defensive agent along the field of view. This agent can be a chemical spray or high-voltage low-current electrical charge. The device is configured so that activation of the trigger switch automatically activates the at least one defensive mechanism and the electronic camera. The device processor is also configured, when triggered, to use this camera to obtain at least one image of the field of view, and use its wireless transceiver to wirelessly transmit this image to an external computerized device or 911 emergency call system. Further, when triggered, the security device is also configured to activate its noise generator, which can produce at least one sound with an intensity exceeding 100 decibels.

Abstract: A projectile launching apparatus for launching projectile with the pressure exerted by the seawater. The projectile launching apparatus includes a large barrel launch, a piston, one or more piston stoppers, plurality of hinged doors, piston locks, and a plurality of water pump is available at bottom of the barrel to generate pressure and help to launch the projectile, wherein the assembly for the projectile is less expensive than present systems, lighter in weight, and of less complexity.

Abstract: A detonator positioning device for use with a detonator in a perforating gun assembly is described. The detonator positioning device may be configured for electrically contactably forming an electrical connection within the perforating gun housing by contact. The detonator positioning device may include a body having a first end, a second end, and a central bore extending between the first and second ends. The central bore may be adapted for receiving one or more electrically contactable components of a detonator. The detonator positioning device can align at least one of the one or more electrically contactable components to form an electrical connection with a bulkhead assembly.

Abstract: Disclosed is a system and method for authorizing and executing safe semi-autonomous engagement of a safety critical firing device at a remote location. A Human Machine Interface at the near location has an input including a hardware safety barrier and hardware barrier communication unit with interfaces connected to a network. At the remote location, a control unit and an Robotic Operator Server are connected to a fire control system of the safety critical firing device and to the network. The Robotic Operator Server includes software for detecting and locking to a target and for providing authorization information to the Human Machine Interface, and to transfer trigger signals to the fire control system when authorization of engagement is confirmed by an operator via a control panel. The safety critical firing device is engaged if all of activation control, arming control, and trigger signals are present in the fire control system.

Abstract: A bolt stop actuator is disclosed. The actuator may include a lift arm, a first leg extending from a point proximate to an end of the lift bar and generally perpendicular therefrom, a second leg extending in the same direction from the lift bar as the first leg, and a projection extending from the lift bar and configured to contact a follower of an empty magazine when the bolt stop actuator is assembled into a firearm. Neither the first leg, nor the second leg, include apertures positioned distal to the lift arm.

Abstract: Rifle scope turrets with spiral cam mechanisms include a scope body, a movable optical element defining an optical axis enclosed by the scope body, and a turret having a screw operably connected to the optical element for adjusting the optical axis in response to rotation of the screw. The turret has a spiral cam mechanism engaged thereto. The turret defines first and second stop surfaces positioned for engagement by the spiral cam to limit rotation of the turn The first stop surface defines a zero position of the screw and the movable optical element. The second stop surface defines a maximum point of displacement of the screw and the moveable optical element. The stop surfaces may be defined by a spiral cam groove in the indexing portion of the turret. The groove may overlap itself at least partially. The turret may be an elevation turret or a windage turret.

Abstract: A gun safety lock uses a turnbuckle mechanism and a locking mechanism to lock a breach end of the turnbuckle mechanism in the breach of a gun and lock a barrel end of the turnbuckle mechanism in a barrel of the gun. The gun safety lock is removed from the gun by unlocking the locking mechanism to allow the turnbuckle mechanism to be rotated so that its breach and barrel ends can be removed from the gun.

Abstract: The present disclosure provides systems and techniques that can be implemented in a gun. The gun may include or be coupled with a slide cover. The slide cover may include a first slide cover recess along a latitudinal axis of the slide cover, the first slide cover recess comprising a first cavity of a first portion of the slide cover and a first cavity of a second portion of the slide cover. The slide cover may include a second slide cover recess along the latitudinal axis of the slide cover, the second slide cover recess comprising a second cavity of the first portion of the slide cover and a second cavity of the second portion of the slide cover. The slide cover may include a first retainer coupling a sight component with the slide cover such that a longitudinal axis of the sight component is substantially parallel with a longitudinal axis of the slide cover.

Abstract: The present invention relates to a firearm safety control system. The system is primarily comprised of at least one camera, at least one image recognition software, at least one artificial intelligence software, and at least one disabling mechanism. Using the camera, the image recognition software detects and classifies a target. The artificial intelligence software then determines what lethality mode the target can be engaged at. If a user attempts to engage an area of the target not permitted by the current lethality mode, the firearm will become disabled and will not fire.

Abstract: A device and method for remote-controlled explosive ordnance disposal using an explosive ordnance disposal device that includes a carriage adjustably attached to a device frame having a rotatable bar. The rotatable bar including at least a laser face, an x-ray face, and a disarm device face; the rotatable bar rotated by a servo motor, the servomotor being remotely operable. The laser face having a laser capable of a laser beam visible to a remote viewing device. The remote viewing device co-mounted to the laser face and remotely viewable. The x-ray face having an x-ray device attached to it. The disarm device face having a bomb disarming device attached; wherein the carriage and the rotatable bar may be remotely adjusted such that upon remote rotation the laser, x-ray and bomb disarming device share an aligned orientation and placement for operation.

Abstract: In some embodiments, a fire control assembly comprises a trigger rotatable about a trigger axis and a hammer rotatable about a hammer axis. A trigger spring is arranged to bias the trigger in a first direction about the trigger axis. A hammer spring is arranged to bias the hammer in a second direction about the hammer axis. The trigger comprises a trigger sear and a stop. The hammer comprises a hammer sear and a catch. The fire control assembly comprises a first orientation wherein the trigger sear contacts the hammer sear and impedes rotation of the hammer, and a second orientation wherein the stop contacts the catch and impedes rotation of the hammer.

Abstract: A firearm including a gas drive, having an annular piston which is displaceably arranged on the barrel to form an expansion chamber between two end positions. At least one gas port penetrates the wall of the barrel in the region of the expansion chamber and a selector is provided. In order to provide a simple and easily adjustable mechanism, the expansion chamber is delimited by a ring surface and an inner cylinder surface of the piston, an end surface of the selector and the barrel. The selector is rotatably arranged on the barrel with at least two predefined rest positions. In each rest position, the gas flow from the expansion chamber is delimitable by at least one selector opening formed on the selector.