Apr 21, 2026
A buffer tube for a firearm can include a body defining an interior cavity for receiving a buffer spring and a rail disposed on and/or formed from the outer surface of the body. The rail can include one or more pin holes configured to receive a pin of a stock to lock the stock in a position. The buffer tube can also include a slide bar channel defined through at least a portion of the rail and configured to allow a slide bar to slide therein relative to the one or more pin holes to urge a pin out of a respective pin hole and/or to block a pin from being received by the pin holes.
firearm
buffer tube
stock system
Apr 21, 2026
The present invention discloses a holster for a conducted energy device. The holster comprises a holster body having a cavity to receive the conducted energy device. The conducted energy device comprises one or more switches to control one or more functions of the conducted energy device. The holster further comprises one or more access modules integrated at an outer surface of the holster body. The access module is configured to activate the switches while the conducted energy device is secured within the holster to control the functions including energization of the conducted energy device. The access module includes an opening to expose the switch. The opening enables a user to access the switch.
holster
conducted_energy_device
Apr 21, 2026
A method and device for image processing, a terminal and a storage medium. The method includes acquiring an image generated by an infrared sighting telescope arranged on a firearm; determining a grey level dynamic range of a preset first portion of the image; if a difference value between the grey level dynamic range value and the grey level of the preset second portion reaches a preset starting processing threshold, performing mean filtering processing on each pixel of the preset second portion to obtain a filtered grey level; and if the filtered grey level is greater than a preset grey level expectation threshold, processing the pixel, so that the grey level of the pixel is close to the grey level expectation value.
imageprocessing
firearm
infraredsighting
Apr 21, 2026
A target tracking device for tracking a target TG, comprising: a memory storing at least one instruction; and at least one processor executing the at least one instruction, wherein the at least one processor: identifies the target based on at least one of radar data acquired through a radar and vision data acquired through a camera, and performs a guidance process to approach the identified target, performs a first guidance process at a first tracking time point to track the target in a certain manner, and performs a second guidance process at a second tracking time point, which is chronologically subsequent to the first tracking time point, to track the target in a manner different from the certain manner.
Apr 21, 2026
A method for detecting a shot hit on an inflatable shooting target and for providing a real-time indication of the hit. The method includes the step of providing a shooting target system with one or more inflatable shooting targets, each of them is assembled on a blower, a power source that is connected to each blower through a controller that controls the activation of each blower, and a current meter between the controller and the power source. The method includes the second step of measuring the current that flow to a certain blower, detecting changes in the current level that occurs upon a hit in a certain inflatable shooting target that is assembled on that certain blower, and making and indication of the hit by turning off the certain blower or by sending a notification to a mobile device of the user or the operator.
inflatable
shooting
target
detection
Apr 21, 2026
A system and method for recovery of undamaged frangible aerial targets at shooting ranges includes a net positioned horizontally above ground level to cover a target fall zone. The net has mesh openings sized to retain undamaged frangible aerial targets while allowing damaged targets to pass through. The net forms a closed loop around parallel elongated front and rear rollers supported above ground by a plurality of fixed caster assemblies. A motor operatively coupled to at least one roller drives the net in a conveyor-like motion. Undamaged targets landing on the net are transported by the net to a collection area positioned adjacent to the front roller. The system may include friction strips on the rollers to enhance traction and a protective barrier shielding the collection area from stray shotgun pellets, thereby enabling recovery and reuse of targets that would otherwise break upon ground impact.
target_recovery
shooting_range
frangible_targets
Apr 21, 2026
A cartridge for a conducted electrical weapon may comprise a body having a first end opposite a second end and an outer surface opposite an inner surface. A projectile may be disposed within the body. The inner surface of the body may define a plurality of grooves extending from the first end of the body to a location within the body.
conducted
electrical
weapon
cartridge
Apr 21, 2026
A cartridge is disclosed with a casing and a projectile, wherein external ballistic stability is provided by a center of pressure of the projectile being rearward of a center of mass of the projectile. The projectile includes flight control surfaces that cooperate with the bore of a barrel without requiring rifling or sabots. The projectile can include fin configurations that cooperate with the bore to form a bearing surface with the bore.
firearm
ammunition
projectile
Apr 21, 2026
In one embodiment, a blast shield apparatus comprises: a blast resistant blanket having a blanket edge and a blanket center region; a plurality of blanket magnets disposed near the blanket edge and distributed along the blanket edge; and a chamber having a first side facing the blast resistant blanket and coupled to the blanket center region of the blast resistant blanket, and a second side opposite from the first side and facing away from the blast resistant blanket. The chamber includes a chamber interior to store a gas.
Apr 14, 2026
A sporting dowel rod is provided. The sporting dowel rod includes an elongated rod including a first end portion and a second end portion distal from the first end portion. The sporting dowel rod further includes a first handle attached to the first end portion and a second handle removably attached to the second end portion. The sporting dowel rod is configured to operate as an aider to a user for dragging or hanging a game animal when the second handle is attached to the second end portion. The sporting dowel rod is configured to operate as a billy-club when the second hand is removed from the second end portion.
dowel
sporting
game
aider
Apr 14, 2026
The present invention relates to a body ( 2 ) located on an air vehicle; at least one weapon (W) located on the body ( 2 ) to attack a target; a carrier ( 3 ) that allows the weapon (W) on the body ( 2 ) to be moved and carried as desired by the user; at least one rail ( 4 ) which extends longitudinally on the body ( 2 ) and allows the carrier ( 3 ) to move in the direction it extends; a plurality of housings ( 5 ) located on the rail ( 4 ); at least one pin ( 6 ) located on the carrier ( 3 ) so as to be form-fitted and opposite to the housings ( 5 ); the pin ( 6 ) having a locked position (I) in which the pin ( 6 ) contacts the housing ( 5 ), thereby fixing the carrier ( 3 ) on the rail ( 4 ), and a free position (II) in which the user triggers the pin ( 6 ) to cut its contact with the housing ( 5 ) so that the carrier ( 3 ) can be moved and brought on the rail ( 4 ).
aircraft
weapon
carrier
rail
Apr 14, 2026
The container includes at least a composite fireproof and explosion-proof plate assembly, at least a reinforcing steel bar, at least a heat-insulating fireproof layer, at least an external panel, at least a supporting steel bar, and multiple structural steel bars. The plate assembly is assembled with the reinforcing steel bar on its exterior. The heat-insulating fireproof layer is filled between the plate assembly and the external panel. The assembly of the external panel and the supporting steel bars is fixed to the multiple structural steel bars, forming a fireproof and explosion-proof energy storage container structure. This structure achieves the safety protection functions of fireproofing and explosion-proofing, effectively blocking and reducing the heat conduction of the container, providing excellent insulation, energy storage benefits, and reducing the internal temperature of the container.
Apr 14, 2026
Disclosed herein are devices, methods, and systems for applying a coating and/or a plating to a surface, including metal surfaces on tubulars or gun barrels. In at least one embodiment, a device includes a rod and an applicator that is rotatable around the rod. The applicator includes a base on which are fixedly attached one or more arms. At one end of the arms is attached one or more applicator pads, which contain the coating and/or plating to be attached to a surface. In a further embodiment, a novel ablative coating includes an electroplated nanostructured porous metal layer combined with embedded nanoparticles. The porous metal layer may include zinc (Zn) and nickel (Ni), and/or alloys thereof. The embedded nanoparticles may include titanium dioxide (TiO 2 ) and hexagonal Boron Nitride (hBN), which are anti-corrosion, friction-reducing, and/or thermally insulating.
coating
treatment
tubulars
wave
Apr 14, 2026
A firearm loader includes a body defining a cavity with a first open end and a slot communicating with the cavity and an interface arm extending from the body. A method includes positioning a firearm loader on a firearm, the firearm loader comprising a body defining a cavity with a first open end and a slot communicating with the cavity and an interface arm extending from the body and transferring cartridges positioned in the cavity through a magazine opening of the firearm by engaging the cartridges through the slot and pushing the cartridges through the first open end. Positioning the firearm loader on the firearm comprises positioning the interface arm on a trigger guard of the firearm to align the first open end with the magazine opening.
firearm
loader
ammunition
Apr 14, 2026
A magazine retention device includes a housing having a front surface and a back surface, a firearm attachment member for securing the magazine retention device to a portion of a firearm, a movable stop lever which includes a tab extending from a base member, the base member including an abutment face, and a pushing member which is urged against the abutment face by a biasing device. The movable stop lever has a locked position, in which the pushing member presses against the abutment face, which causes a portion of the movable stop lever to be pressed against a portion of the housing, such that the movable stop lever is sandwiched between the pushing member and the housing.
firearm
accessory
magazine
retention
Apr 14, 2026
A firearm suppressor including a first baffle segment with a cylindrical outer wall and a conical baffle core that defines a central opening, where a longitudinal length of the cylindrical outer wall is longer than a longitudinal length of the conical baffle core; and a second baffle segment comprising a cylindrical outer wall and a conical baffle core that defines a central opening, where a longitudinal length of the cylindrical outer wall is less than a longitudinal length of the conical baffle core.
firearm
suppressor
ammunition
Apr 14, 2026
The present invention provides a quick coupling muzzle booster and suppressor adaptor system having a quick coupling muzzle booster and suppressor adaptor and direct rifle mount that can be coupled to a suppressor and mounted on a lock breech pistol or pistol caliber carbine. The system according to the invention provides wherein the quick coupling muzzle booster includes a booster slide with an external quick connect for coupling to the suppressor adaptor, and wherein the external quick connect of the booster slide includes a plurality of lugs corresponding to a proximal end of a housing of the suppressor coupling, and wherein the muzzle booster includes a booster piston that is coupled to a pistol. The system according to the invention may provide wherein the muzzle booster includes a booster piston nut with a spring, wherein the booster piston nut is coupled to the booster piston.
muzzle
booster
suppressor
pistol
Apr 14, 2026
Cleaning fluids and methods are provided for cleaning a firearm. In examples, a firearm cleaning fluid may comprise an emulsion. The emulsion may include ammonium hydroxide and a sulfurized olefin. The sulfurized olefin may be in an amount less than about 30 weight percent based on the total weight of the firearm cleaning fluid.
cleaning
firearm
fluid
Apr 14, 2026
Stocks for a rifle or other firearm transition between a deployed configuration and a stowed configuration. In the stowed configuration, a buttstock of the stock is positioned to at least partially surround the scope within an internal volume of the buttstock. The buttstock covers at least a portion of the rifle scope without needing to contact the scope, and is rigid enough to protect the scope from impacts. When the firearm is ready to be used, the stock may be deployed to reveal the scope and the stock may be positioned to serve in a conventional manner for the user to rest their shoulder against. To fold or unfold the stock, a grip and buttstock of the stock are rotated with respect to a forestock of the stock. Systems include both such a folding stock and a rifle or other firearm to which the stock is coupled.
firearm
stock
rifle
Apr 14, 2026
A buffer tube apparatus for a weapon includes an outer tube defining a longitudinal axis, the outer tube having a first end configured to be coupled to the weapon and a second end opposite the first end, the second end configured to be coupled to a stock. A buffer assembly includes a shock absorber and is disposed within the outer tube. The buffer assembly is configured to absorb an impact of recoil generated by the weapon. An adjustment bar is configured to interact with the stock. The adjustment bar is coupled to the buffer assembly and slidable with respect to the outer tube along the longitudinal axis.
buffer
firearm
recoil
stock
Apr 14, 2026
A recoil damping system includes at least one easily attached and detached spring tube of variable stiffness, absorbing the severe recoil created in firearms firing heavy-weight cartridges with high gas pressure. In the system in question, the spring tubes absorb the severe recoil that is created in firearms firing heavy-weight cartridges with high gas pressure in contrast to the known technique, and hence the impact on the shooter's shoulder is minimized. Thus, after the shot, the pain and injuries suffered by the shooter due to severe recoil are not in question any longer. The practical recoil damping system is compatible with all firearms firing heavy-weight cartridges with high gas pressure, where easily attached and detached spring tubes with variable stiffness can be applied.
firearm
recoil
damping
system
Apr 14, 2026
A barrel nut handguard system can include a handguard with a sidewall defining a bridge opening extending to a handguard interior, a barrel nut defining a registration groove around a periphery of the barrel nut, and a connector bridge in the bridge opening so that a contact surface engages the first registration groove. A fastener extending between the connector bridge and handguard can be tightened so the barrel nut is clamped between the contact surface and the handguard interior. The contact surface can fit between walls of the registration groove and prevent fore to aft sliding of the handguard relative to the barrel nut. The barrel nut can include tool lands allowing tooled rotation of the barrel nut relative to a receiver of a firearm to secure a barrel to the receiver with the barrel nut, without requiring rotational indexing of the barrel nut relative to the receiver.
firearm
handguard
barrelnut
Apr 14, 2026
A rifle carrying case system. The rifle carrying case system includes a utility case for carrying rifles, a roller case for carrying rifle gear and accessories, and a docking station for mounting the utility case to a support structure such as a wall. The utility case and the roller bag case each include corresponding attachment mechanisms that enables the utility case to be removably coupled to the roller case for easy transit of the cases as a combined single unit. The attachment mechanisms include upper and lower hook members configured with the roller bag (e.g., with its extendable handle) and corresponding slots on the utility case that may be engaged by the hooks.
carrying case
rifle
accessories
Apr 14, 2026
A combined sight and optic sight mount securable to an upper surface of a firearm comprising: an aperture frame including: a stationary aft aperture frame; and a movable aft aperture sub-frame situated within the stationary aft aperture frame and comprising: opposed vertical sidewalls, a top wall connecting the opposed vertical sidewalls, and a pair of substantially horizontal planar aiming reference members extending inwardly from the vertical sidewalls and defining a gap therebetween.
firearm
sight
optic
mount
Apr 14, 2026
An example rifle scope includes a plurality of light emitting devices for sending illuminations directed to a distal end of the rifle scope. A plurality of optical detectors detects reflected light received from the distal end of the rifle scope. Each of the optical detectors produces data regarding the reflected light each optical detector observed. A processor device receives the data on the reflected light from the optical detectors and adjusting a position of a field lens so an eyepoint projected in a target space of the rifle scope coincides with an optical axis of the rifle scope removing parallax errors due to misalignment.
rifle
scope
optics
parallax
Apr 14, 2026
A howitzer training gun with a gun carriage, a gun cradle supported by the gun carriage, a training gun barrel, and an unloading tray disposed at or near a forward end of the gun cradle, the unloading tray having a travel position and an operating position, and when in the operating position the unloading tray is arranged to receive a projectile from the training gun barrel and transfer the projectile to the ground.
howitzer
training
gun
firearm
Apr 14, 2026
A viewing optic has a base and a housing. The housing has a front side, a rear side, a left side, a right side and a top side. The front side, rear side, left side and right side extend upwardly from the base. The top side extends between the upper edges of the front side, rear side, left side and right side. A load absorbing/dispersing component is on at least a portion of the top side. The load absorbing/dispersing component comprises a load absorbing/dispersing material.
optic
viewing
firearm
accessory
Apr 14, 2026
A ballistic panel carrier jacket is disclosed. The jacket of this invention comprises a front section and a back section. The back section has a back pocket attached thereto having an opening for receiving a back ballistic panel. The front section has a plurality of front pockets attached thereto having a housing pouch for receiving a front ballistic panel and a receiving pocket for receiving and securing the pouch of the front ballistic panel such that the front right and front left pockets interact with one another such that a section of one is received within another. The carrier jacket of the present invention also discloses a false pocket breakaway section that functions as a Hidden Draw System (HDS) that allows a user access their firearm legally from the holster, quickly and discreetly.
ballistic
armor
jacket
carrier
Apr 14, 2026
A system for projecting high voltage electrical discharges along laser filaments in air has a high voltage electrical discharge device operable to generate and discharge a high voltage electrical discharge. A laser assembly has at least one laser operable to produce laser electrically conductive laser filaments in air. An electrode is electrically connected to the high voltage electrical discharge device and configured to direct a high voltage electrical discharge at a breakout point of the electrode. The electrode breakout point is disposed in relation to the at least one laser such that when electrically conductive laser filaments are created in air by the at least one laser the high voltage electrical discharge at the breakout point is caused to travel along the electrically conductive laser filaments in air.
electrical
discharge
laser
high_voltage
Apr 14, 2026
A tactical laser defense system includes one or more tactical lasers configured to emit one or more respective laser beams at a particular target; one or more other tactical devices comprising at least one of: (i) a camera to capture images and/or video of an area surrounding the tactical laser defense system, (ii) a light source for illuminating the area surrounding the tactical laser defense system, (iii) a microphone for capturing audio information from the area surrounding the tactical laser defense system, and (iv) radar equipment for detecting enemy threats; and a power source operatively coupled to the one or more tactical lasers and the one or more other tactical devices, the power source configured to provide electrical power to the one or more tactical lasers and the one or more other tactical devices.
laser
defense
tactical
Apr 14, 2026
An electronic shooting training target has a target seat, and multiple target holes penetrate through the target seat. A base plate includes a plate body, multiple triggers and a controller. The base plate is mounted on a rear side of the target seat and positioned at a distance from the rear side. Each of the sensing assemblies has a hollow rod, an elastic part, an impact part, and a screw. The hollow rod is mounted through one of the target holes. The elastic part is sleeved on one end of the hollow rod. The impact part is mounted on the hollow rod. The screw is mounted through another end of the hollow rod and is fixed on the impact part.
training
target
electronic
shooting
Apr 14, 2026
The present disclosure relates to a shaped charge. The shaped charge includes an explosive component and a liner member coupled to the explosive component. The explosive component and the liner member emit a perforating jet based on ignition of the explosive component. The liner member has a planar symmetric portion that is planar symmetric along an axial length of the planar symmetric portion relative to planes perpendicular to a direction of the emitted perforating jet.
shapedcharge
explosives
military
Apr 14, 2026
A method for producing a base piece for receiving a primer for a multi-part cartridge case may include producing (e.g., by deforming) an extraction groove for engagement by a firearm ejector. The production of the extraction groove may be before a receptacle for a case jacket of the multi-part cartridge case for receiving a projectile is produced, such as by deforming. A tool arrangement for producing a base piece may be used to produce the base piece.
cartridge
ammunition
firearm
Apr 14, 2026
A foldable moveable member for an air vehicle. The moveable member includes a sheet. The sheet has a first portion, a second portion, and a fold region. The first portion is connected to the second portion via the fold region, and the fold region comprises a plurality of holes such that the stiffness of the fold region is lower than the first or second portion. The fold region, the first portion, and the second portion form a continuous surface.
Apr 14, 2026
The present invention relates to a range extension device, particularly to a reversible range extension device, especially reversible base bleed device. There is provided a reversible range extension device, capable in use, of being reversibly engaged to a body of an artillery shell, said range extension device comprising at least one energetic material, and an igniter, wherein the range extension device comprises a first end with an aperture, and second closed end, wherein the range extension device, in use, is selectively arranged to be in an active orientation or inert orientation, wherein in the active orientation the range extension device is arranged such that the aperture faces rearwardly away from the shell to allow the range extension device to function, and in the inert orientation the range extension device is arranged such that the aperture faces inwardly towards the shell.
artillery
range_extension
military
Apr 14, 2026
The invention of the present subject matter relates to a sinter bonded projectile comprising a core component and a copper component which has been sintered in such a manner to form a solid mass over the core. More particularly, the invention of the present subject matter provides a core component to which a copper component is melted at a temperature sufficient that it penetrates into the pores and geometry of the core component under compression due to thermal shrinkage, resulting in a tightly bonded solid mass containing no voids. The invention of the present subject matter also provides a process for manufacturing the projectile.
projectile
ammunition
sintered
Apr 14, 2026
A system for coupling sections of a platform. In an example, the coupler system includes a cylindrical housing to be attached to a first section; a spin member within the housing configured to rotate about a longitudinal platform axis; a groove pattern etched into the spin member; a plunger, within the spin member, configured to move linearly along the longitudinal axis; a first spring configured to cause the linear plunger movement in response to acceleration of the platform; a guide pin attached to the plunger, extending radially outward toward the housing, configured to travel along the groove pattern with plunger movement; a ball coupler mechanism to provide mechanical attachment of the coupler system to a second section; and a second spring configured to rotate the spin member, such that movement of the plunger and rotation of the spinner cause the ball coupler mechanism to disengage from the second section.
Apr 14, 2026
A system and method for coding firearm-related components to reduce the risk of loading incorrect ammunition into firearms is disclosed. The system includes a plurality of firearm-related components, each associated with a specific caliber of ammunition and marked with a unique identifier. The unique identifier for each caliber may include at least one of a color, a letter, or a shape. Firearm-related components may include storage units, master storage units, ammunition rounds, magazines, holsters, straps, and firearms. The method involves marking these components with unique identifiers and can also incorporate sub-coding for differentiating multiple firearms of the same caliber using additional markings such as stripes or dots in secondary colors. Unique identifiers are applied using methods such as adhesive labels, colored tape, paint, ink dyes, or anodization.
ammunition
firearm
loader
magazine
Apr 14, 2026
An automatic uncoupled charging device includes a control system, a power system, a charging system, and an auxiliary system. The control system is equipped with a programmable circuit to control a screw speed. Explosives are charged into a container through manual handling or flowing from a mixed explosive vehicle. Explosive bags with different diameters are installed at the bottom of a discharge port. The device is set to start with one click, and the screw drives the explosive into the bag, achieving uncoupled charging. An automatic uncoupled charging method applying to the automatic uncoupled charging device not only reduces labor intensity, achieves fast charging, improves labor efficiency, but also achieves the goal of “mechanization reducing personnel”, further advancing towards the essential safety of blasting construction.
explosives
charging
device
method
Apr 14, 2026
The invention relates to a ranging and ballistic display optical sight featuring a mounting bracket, control mainboard, laser emitter, and receiver. An objective lens group and beam splitter prism are arranged coaxially, with the prism positioned above the laser receiver. The laser beam emitted is reflected by the prism into the receiver. A digital reticle plate, aligned with the optical path, displays the range data. The control mainboard calculates distance based on the time difference between laser emission and reception, then displays the result on the reticle. This system enhances shooting precision and efficiency.
optical
sight
ballistic
laser
Apr 14, 2026
A system, method, or apparatus for generating a blast plan that can receive blast data comprising geological properties of a blast site, blasthole parameters, and available explosive product. A pattern footage can be determined based on a relationship between the face height, the specific energy of the available explosive product, and the geological properties of the bench. The burden and spacing can be determined from the pattern footage.
blast
explosives
defense
spray
Apr 14, 2026
A wearable device includes a flexible wearable layer and a detachable layer. The flexible wearable layer includes a fabric element and a first metal resonant structure. The first metal resonant structure is integrated with the fabric element. The detachable layer is adjacent to the flexible wearable layer. The detachable layer includes a dielectric substrate and a second metal resonant structure. The dielectric substrate has a first surface and a second surface which are opposite to each other. The second metal resonant structure is distributed over the first surface and the second surface of the dielectric substrate. When the wearable device receives an RF (Radio Frequency) signal, the flexible wearable layer guides the RF signal to the detachable layer.
Apr 14, 2026
A rifle cartridge with a bullet has desirable penetration capabilities and controlled separation of components upon terminal impact. In embodiments of the invention, the bullet comprises a forward component, a lead core, and a copper jacket. The lead jacket having a leading edge portion that extends to the cylindrical mid portion. The forward component may have a forward pointed ogive portion, a cylindrical mid portion, a mid ogive portion, and a pair of cylindrical portions separated by an annular groove. The jacket having a cannelure at the annular groove and the casing upper lip crimped into the cannelure.
rifle
cartridge
ammunition
bullet
Apr 7, 2026
The invention shows a gas generator comprising a pressure chamber ( 22 ) filled with compressed gas which is sealed against an environment of the gas generator ( 10 ) by a membrane ( 16 ), a solid propellant ( 30 ) received in the pressure chamber ( 22 ), and an igniter unit ( 14 ) adjacent to the pressure chamber ( 22 ). The solid propellant ( 30 ) is surrounded by a cage-type open fuel holder ( 32 ) receiving the same which protrudes into the pressure chamber ( 22 ) and is directly adjacent to the igniter unit ( 14 ). Accordingly, the pressure chamber ( 22 ) is free from solid propellant outside the fuel holder ( 32 ).
gas
generator
safety
vehicle
Image unavailable
Apr 7, 2026
A manufacturing method of an intelligent anti-terrorism protective door comprises the following steps: S1, making front and rear door panels; S2, cutting the composite door core panel materials; S3, making protective door frame; S4, assembling bulletproof and explosion-proof armored composite door core panel; S5, making the door frame; S6, decorating the surface of the protective door; S7, overall assembly; S8, installing the lock; S9, packaging the protective door. The manufacturing method is simple and easy to implement, with strict control over every aspect from raw materials, production processes, to quality control during the manufacturing process, ensuring the product quality. This not only makes the product fire-proof and anti-theft, but also has explosion-proof and bulletproof properties, effectively preventing explosions and bullet attacks, greatly improving the security of the protective door.
door
security
bulletproof
explosion-proof
Apr 7, 2026
Provided is a thermal management apparatus for use with a vehicle, the apparatus comprising a plurality of phase change heat exchange units thermally coupled with a vehicle system that requires thermal management, the plurality of phase change heat exchange units operable to remove heat from the vehicle system.
Apr 7, 2026
Braking mechanism for a gun includes a fork whose arms are abutted by supporting pins that abut on brake rollers. A breech that has vertical engagement grooves. Spring-loaded pins with compression springs are arranged against supporting pins. The body of the fork is terminated by a tapered tongue extending into a cavity which follows the fork. Behind the tongue a rod is arranged, which passes into the cavity in a sleeve. The sleeve is provided at one end with an end rod, which is provided at its face with a cylindrical ending arranged eccentrically below its center. The supporting pin is provided with a vertical elongated groove to accommodate the safety pin. In front of the trigger a locking lever of the control arm is placed. At the end is the control arm provided with a transverse beam, which is accommodated above the ending of the end rod.
braking
mechanism
gun
Apr 7, 2026
A firearm with ambidextrous bolt release mechanism includes a barrel and a bolt slideably mounted in the receiver for axial movement between forward closed breech position in battery with the barrel and a rearward open breech position. A recoil spring biases the bolt forward. A side-mounted bolt catch lever is configured and operable to selectively hold the bolt in the open breech position, and disengage the bolt to reclose the breech when manually actuated. A transversely movable actuator plunger allows a user to release the bolt from the side of the firearm opposite the bolt catch lever side. The plunger comprises an inclined camming surface which slideably engages a mating inclined camming ramp on the lever. Wedging action applied to the bolt catch lever by the plunger rotates the lever about its pivot axis to disengage and release the bolt.
firearm
mechanism
bolt
release
Apr 7, 2026
An apparatus and methods are provided for a front plate having a diverging central bore for firearm sound suppressors that improves noise and flash characteristics during firing a weapon. The central bore is disposed between a back surface and a front surface of the front plate. An untapered portion of the central bore extends from the back surface to a diverging portion that opens toward the front surface. The diverging portion includes a curvature profile configured to allow for more controlled expansion of high-pressure propellant gases exiting of the suppressor through the central bore. The curvature profile provides an included angle of the central bore that decreases secondary flash events accompanying the expulsion of propellant gases accompanying a fired bullet exiting the suppressor through the central bore. The curvature profile exhibits a cross-sectional area of the central bore that is proportional to a distance along the diverging portion.
firearm
suppressor
sound
noise
Apr 7, 2026
A gun muzzle sound suppressor including a plurality of segments, wherein each segment among the plurality of segments including a cylindrical housing having an inner surface and an outer surface, wherein the each segment further includes a conical baffle fixedly attached to the inner surface of the each segment's cylindrical housing, wherein the each segment further includes a plurality of vanes fixedly attached to the outer surface of the each segment's cylindrical housing; an outer housing having an inner surface, wherein the outer housing is fitted for sliding receipts of the segments, wherein upon the receipts of the segments, the vanes contact the outer housing's inner surface; and a pair of rings fixedly attached to the outer housing, one the rings among the pair of rings being positioned muzzlewardly from a muzzleward-most segment among the plurality of segments, the other ring among the plurality of rings being positioned breachwardly from a breachward-most segment among the plurality of segments.
suppressor
firearm
muzzle
sound
Apr 7, 2026
A firearm forearm assembly is provided. Generally included is a forearm retainer that is a flexible component installed in the forearm, which is then momentarily deflected to admit each action bar. Once the forearm assembly is installed in the firearm, the firearm's magazine tube is introduced and prevents further deflection of the retainer, thus locking the forearm assembly together during use. As a result, the forearm assembly is easily disassembled by the user without the use of tools by deflection of the retainer and removal of the action bars. But at the same time, the integrity of the firearm is preserved during operation.
firearm
forearm
assembly
Apr 7, 2026
A system and method are provided for correcting targeting of indirect fire, including: acquiring values for a set of firing conditions, for each of the firing conditions determining statistical parameters of a covariance matrix of the firing conditions, including estimates of unit effects, standard deviations, and error correlations between registration and fire-for-effect (FFE) firing condition errors, wherein at least one correlation is less than one and greater than zero, acquiring a registration miss vector, generating from the statistical parameters a conditional correction matrix; and multiplying the conditional correction matrix by the registration miss vector to calculate a correction vector for FFE targeting.
indirectfire
military
targeting
ballistics
Apr 7, 2026
Provided herein are systems and methods for shooting simulation of a target with a projectile. More particularly, the invention relates to virtual reality optical projection systems to monitor and simulate shooting.
simulation
training
virtual_reality
Apr 7, 2026
A soft body armor arrangement has a plurality of layers of soft ballistic material stacked on one another, each layer comprising a plurality of sub-layers of ballistic material. Each of the layers has a respective seam line attaching two or more respective sections of the layer. The sizes of the section are varied so that the resultant seam lines of adjacent layers are offset and spaced apart from one another, but the overall size and shape of each layer is the same. This avoids stacking and bunching of the seam lines which can cause rigidity and discomfort.
bodyarmor
military
protection
Apr 7, 2026
The present disclosure relates to a shaped charge liner. The shaped charge liner includes a first liner portion formed a first material. The first liner portion has an apex and a skirt section that define an interior volume of the first liner portion. The shaped charge liner also includes a second liner portion formed of a second material. The second liner portion is coupled to the first liner portion such that the second liner portion is an edge of the interior volume.
shapedcharge
explosives
military
Apr 7, 2026
The header of an EED is redesigned to increase stiction forces to better hold the main charge throughout deflagration. The header includes a main charge holder, integrally formed or as a discrete component, that has internal structure that is press fit to a complementary outer surface of the main charge. The contact area between the internal structure and the main charge being greater than the contact area between a cylinder that circumscribes the internal structure (the uniform cylindrical shape of a typical EED contact area of π*D*L) to increase stiction forces between the main charge holder and the main charge. For a given diameter and length, the inclusion of the internal structure will reduce the mass of the main charge.
electro-explosive
devices
eeds
Apr 7, 2026
A gas generator includes: an ignition device including an igniter, an igniter holding portion having a tubular shape and being configured to hold the igniter and a fixing portion made of resin and being configured to fix the igniter to the igniter holding portion; and a case having a bottomed tubular shape and being configured to accommodate a gas generating agent which combusts by actuation of the ignition device, the case being made of resin and including a side wall portion with a base end side being connected to the fixing portion, and a closing end portion configured to close a tip end side. The case includes an inclined surface extending obliquely with respect to an axial direction of the case on the tip end side, and a fragile part formed at an edge portion excluding at least a base end portion of the inclined surface.
gas_generator
ignition_device
combustion
not_firearm
Apr 7, 2026
An arrowhead, in accordance with the present invention, includes an apex, and a first pair of blades fixed about an axis of the arrowhead, each of the preferably coplanar blades containing an edge defining a single-bevel edge that transitions to a double-bevel edge along the periphery of the arrowhead. The arrowhead may further contain a smaller second pair of blades fixed about the axis, each of the second pair of blades spaced apart from a primary blade, each of the second pair of blades extending along and fixed to the arrowhead along the axis.
arrowhead
defense
self-defense
spray
Apr 7, 2026
The safety systems for commercial blasting operations include wireless transmitter system(s) configured to send command signals wirelessly to wireless devices that are configured for wireless electronic blasting (web). The system also includes disable antenna(s) that define deactivation zone(s): vehicle/personnel presence detector system(s) including detectors that define detection zone(s), and/or RFID scanner system(s) with reader antennas that defined scanner zone(s); and a safety control system in electronic communication with the wireless transmitter system(s), and the vehicle/personnel presence detector systems and/or the RFID scanner systems, wherein the safety control system is configured to control the wireless transmitter systems to send wireless disable command(s) to disable the wireless devices that are within the deactivation zones, and/or to control alarm system(s) to generate alarms, in response to a vehicle/person being detected in the detection zones and/or a wireless device being detected in the scanner zones.
Apr 7, 2026
A diffractive optic reflex sight (DORS) is provided for aiming devices in which a virtual image, such as a reticle, is produced and appears in the distance of a user's view when looking through the reflex sight. A light source illuminates a diffractive optical element (DOE) that includes a modulation pattern that generates a patterned illuminations corresponding with the virtual image. A reflective image combiner then reflects the patterned illumination so that the virtual image appears in the distance of the viewer's view. The DORS optical design system is mechanically and optically stable for precision aiming across a range of environmental conditions and in different use scenarios or applications including use in rapidly changing temperatures, varying light conditions, and a wide range of user proficiencies. The DORS optical design system is a readily manufacturable aiming and sighting device for a wide range of applications from handguns to astronomical telescopes.
sight
aiming
optics
