Firearms and Ammunition Patent Grants

US12460907 - Light weight ammunition and firearm systems

A firearm system includes a bolt carrier with an internal cavity, a piston disposed within the internal cavity, a forward configuration where the piston is in a forwardmost position relative to the bolt carrier, and an aft configuration where the piston is in a rearmost position relative to the bolt carrier. The piston slides forward and aft relative to the bolt carrier. In the forward configuration, the entire piston remains disposed within the bolt carrier.

US12460908 - Hunting game tracking system

A hunting game tracking system for tracking a location of an injured game animal includes an arrowhead having an aft end, a tip end, and a ferrule extending therebetween. A tracker housing releasably coupled to the arrowhead has a front side, a back side, and an upper end that is angled to extend outwardly from the front side and downwardly toward the back side. A transmitter wirelessly communicates with a GPS unit to identify a location of the tracker housing. An ejector is movably positioned within the ferrule. The tracker housing is positionable within a cutout extending into the ejector. The cutout includes a sloped upper wall that is in contact with the upper end of the tracker housing and that slides downwardly against the upper end of the tracker housing to urge the tracker housing outwardly from the arrowhead into the animal after impact.

US12460909 - Polymer jacked solid core projectile

Provided is a polymer jacketed projectile with metal core. The projectile includes a metal bullet core and a monolithic polymer bullet jacket surrounding a portion of the bullet core. The jacket includes a series of radial driving bands cut into the jacket in a graduated configuration at increasing thicknesses. The graduation and increasing thickness of the driving bands allows gradual radial acceleration upon engraving of the rifling due to intentional radial deformation of the forward driving bands. Additionally, the bullet core) includes high-friction surfaces formed in a longitudinal direction or at a base of the bullet core. The modified surface increases friction between the bullet core and polymer, further decreasing radial slippage.

US12460910 - Reduced energy marking cartridges providing a multi-phase firing cycle

A reduced energy marking cartridge includes a casing supporting a sabot for relative sliding movement and defining a combustion chamber at the breech end of the cartridge and a vent chamber at the muzzle end of the cartridge. An assembly of seals and radial venting passages in the sabot, which may be in the form of notches, slots or holes, cooperate during the relative movement of the casing and sabot to provide a valving mechanism for controlling the flow of combustion gas from the combustion chamber through the venting chamber and into the acceleration chamber for propelling a projectile from the cartridge.

US12460911 - Progressive ammunition press system

Progressive ammunition press system, components thereof, and associated methods. The press system may include a press control system integrated with the press. The press may include a case carriage including a case carrier supported by a bearing. Case retainer gates may be provided for retaining cases in the case carrier. A bullet feeding system can be arranged to permit bullet feeding and seating in a single station of the press. A primer feeder can be self-contained, gear-driven, and/or recirculating.

US12460912 - Bomb fuze initiator

A bomb fuze initiator equipped with a cap configured to open after bomb release, a device for detecting bomb release, a device for determining bomb speed, an integrated proximity sensor and a fuze connector intended to connect the fuze initiator to a bomb fuze, the integrated proximity sensor comprising: a transceiver of electromagnetic waves comprising an HF antenna and an HF circuit or comprising an IR source and a photodetector, and a transmission link configured to transmit the signal delivered by the transceiver of electromagnetic waves.

US12460913 - Cut-and-capture systems for demilitarization of underwater munitions

Some variations provide a cut-and-capture system configured for demilitarization of an underwater munition, comprising: a docking platform that is sealably positionable onto an underwater munition; a first manipulator arm to manipulate the docking platform onto the munition; a high-pressure waterjet cutting tool configured to be reversibly sealably placed into the docking platform; a washout tool configured to be reversibly sealably placed in the docking platform, wherein the washout tool generates waste from the munition; a bladder that stores munition waste; a second manipulator arm to manipulate the cutting tool and the washout tool into the docking platform; an abrasive feed subsystem that delivers an abrasive to the cutting tool; and a system control module with electrical and hydraulic control hardware, to control the docking platform, cutting tool, abrasive feed subsystem, the washout tool. Other variations utilize a multifunctional device that contains the cutting tool, the washout tool, and other tools.

US12460963 - Gunshot detection via classification using deep learning and fiber sensing technologies

A machine learning (ML)/artificial intelligence (AI) based distributed fiber optic sensing (DFOS) system and method providing detection and localization of gunshot events. In addition to the ML/AI DFOS, a signal processing pipeline that compresses an audible distributed acoustic sensing (DAS) waveform data into a small set of features that protects privacy of individuals while preserving the utility of acoustic events to detect the gunshot events and discriminate same from other events. A data-driven deep learning approach automatically predicts acoustic event types with higher accuracy that realized by prior art methods.

US12461378 - Nighttime heads up display unit apparatuses, systems, and methods

Apparatus and methods are taught to optically fuse first output light containing visual data with second output light emitted from a night vision device. A waveguide display is aligned relative to an eyepiece of the night vision device. When the waveguide display is in an ON state and second output light exits the eyepiece, the second output light passes through the waveguide display. A display has an input and is configured to receive a display input signal containing visual data. The display is configured to emit light responsive to the display input signal. An optical device is disposed between the display and the waveguide display. The optical device couples emitted light from the display into the waveguide display. When in the ON state, the waveguide display emits first output light which optically fuses with second output light.

US12462078 - Modeling simulation and multi-field coupling analysis method and system for electromagnetic railgun system

The present invention provides a modeling simulation and multi-field coupling analysis method for electromagnetic railgun system, comprising: for electromagnetic railgun, respectively building mathematical model of pulse shaping unit, mathematical model of armature impedance, mathematical model of rail and dynamic model of armature of electromagnetic railgun system; by using modularization method, forming simulation model of the electromagnetic railgun based on each built model; carrying out coupling simulation on current density and magnetic induction intensity distribution of the simulation model of the electromagnetic railgun, and analyzing coupling action and distribution characteristics of electromagnetic field in launching process of the electromagnetic railgun and influence of the electromagnetic field on temperature field distribution; based on the analysis result, determining positions where severe ablation appeared and electric contact arcing easily generated on the electromagnetic railgun, and carrying out preventive and maintenance measures.

USD1101088 - Firearm

USD1101091 - Heat shield for firearm suppressors