Firearms and Ammunition Patent Grants

US12350864 - Systems and methods for casting propellant grain

Systems and methods for casting solid propellants include a mandrel for forming geometric features in a perforation of a propellant grain. In various embodiments, the mandrel includes a frangible portion that is removed from the propellant grain after the propellant grain has cured around the mandrel. A second portion of the mandrel may be left behind in the propellant grain. The mandrel may include a support structured disposed in the through hole of the mandrel. The support structure may include a plurality of longitudinal channels for directed exhaust gasses through the mandrel upon ignition of the propellant grain.

US12350908 - Lightweight nanoparticle composition for a protective apparatus and method of making

The present disclosure describes articles that may be used in protective gear, including but not limited to body armor, helmets, shields, or barriers. These articles may include a polymeric material coated with nanoparticles, in a single layer or in multiple layers, which are treated to form a composite. The articles may further include a ceramic layer and/or a back-face layer. Such articles may be useful for protecting an object or wearer against projectiles.

US12351149 - Military vehicle

A military vehicle includes a passenger capsule, a front module, a rear module, and a control system. The front module includes a front frame assembly coupled to a front end of the passenger capsule, a front axle, and a front suspension positioned between the front axle and the front frame assembly. The rear module includes a rear frame assembly coupled to a rear end of the passenger capsule, a rear axle, and a rear suspension positioned between the rear axle and the rear frame assembly. Each of the front suspension and the rear suspension includes a pair of gas springs and a pair of dampers. The control system is configured to monitor a ride height of the military vehicle and control the pair of gas springs of the front suspension and the rear suspension to adjust the ride height as load is added to or removed from the military vehicle.

US12352514 - Folding structure of toy gun

A folding structure of a toy gun has a main structure that includes a gun body section, a guard section pivotally mounted to one side of the gun body section, a gun barrel portion movably arranged in interiors of the gun body section and the guard section, an internal bore module arranged at an end of the gun barrel portion, an elastic element fit over the gun barrel portion, a bore latch pivotally mounted in the interior of the guard section, a bullet loading latch pivotally mounted in the interior of the gun body section and operatively collaborating with the magazine, a bore driving member arranged at a front end of the internal bore module, a driving pull handle for pushing the bore driving member, and a fixing pull handle for fixing the guard section.

US12352515 - Compact action with forward charging handle incorporated into an upper receiver handguard

A compact action for a firearm including an upper receiver housing incorporating a barrel. A bolt and carrier are positioned within the receiver housing so that the bolt is engaged to a rear receiver end of the barrel in a cartridge chambering position. Guide rods are supported within the housing above the barrel and extend in parallel to a rear located end plate. The carrier includes a carrier key supported by and displaceable along the guide rods between the barrel and a rearward bumper component. A gas tube extends from a forward located gas block overlaying a gas discharge aperture in the barrel to a gas key for actuating the carrier rearwardly following discharge of a ballistic from the barrel. A fixed ejector is attached to the upper receiver, in combination with machining a slot into the carrier and the bolt, such that the ejector remains static such that, upon the bolt cycling, the spent shell casing contacts the ejector, causing it to be ejected out of the upper receiver.

US12352516 - Upper receiver with bolt biasing member

A firearm is disclosed. The firearm can include an upper receiver that includes a bolt. The bolt can include at least one displaceable biasing member that is configured to bias the bolt in a forward state when the at least one biasing member is in an initial state. The bolt can also include a locking wedge that is configured to bias the at least one displaceable biasing member in the initial state. The at least one displaceable biasing member is configured to be displaced from the initial state to a displaced state when a sufficient amount of force is exerted on the at least one displaceable biasing member from the bolt so that the bolt can transition from the forward state to a backward state.

US12352517 - Detent delayed blowback system and methods

A delayed blowback system for a firearm is provided. The system includes a bolt with two detent members operatively coupled within the bolt, each detent member comprising a detent. The system further includes a recoil spring guide rod having two matching recesses on opposing sides of the recoil spring guide rod, wherein the bolt and the two detent members are coupled to and slidable along the recoil spring guide rod between a firing position and a recoil position. The firing position includes the detents resting in the matching recesses on the recoil spring guide rod in response to a round being fired, the bolt moves back and pushes the detent members back, wherein by nature of a geometry of the detents and the matched recesses, the detent members outward in opposite directions and perpendicular sliding along the recoil spring guide rail in the recoil position to complete a recoil cycle.

US12352518 - Gas operating system for low energy ammunition

A gas operating system for a firearm for use with low energy ammunition that includes a barrel having a maximum pressure experienced at a maximum pressure location when firing the low energy ammunition where a gas port is positioned distally from the maximum pressure location in a region of the barrel that experiences between 90% of the maximum pressure and 40% of the maximum pressure, a gas block on the barrel and a tube connecting the gas block to a bolt carrier, where the gas block directs energy from combustion gas pressure vented through the gas port to the bolt carrier via the tube.

US12352519 - Loaded-chamber indicator firearm trigger device

A loaded-chamber indicator firearm trigger device is provided. The device is comprised of a firearm with a trigger (or only a trigger in one embodiment), wherein the trigger is comprised of an exterior side surface with at least one indicia. The indicia is only visible outside of the frame of the firearm when the firing pin of the firearm is engaged (which causes the portion of the trigger the indicia is positioned on to move outside of the frame of the firearm). As a result, the observability of the indicia on the trigger indicates the firearm has an engaged firing pin and is ready to fire.

US12352520 - Magazine ammunition rounds detection and alert module

A module for detecting and notifying of the presence of ammunition in an ammunition magazine is provided, comprising a spring and a follower for containing and advancing ammunition within the magazine. A printed circuit board having electronics mounted thereon is mounted in a handle of a gun and includes a central processing unit with access to memory having executable instruction data thereon, at least one motion sensor for sensing motion of the printed circuit board, an eccentric motor, a connector providing remote digital access to the processor, at least one mechanism for erasing data or resetting parameters, and a battery bay for accepting a battery, at least one sensor for detecting position of the spring or follower. An amount of ammunition is thereby discerned by the central processing unit based upon the position of the spring or follower.

US12352521 - Magazine loader

A magazine loader assists in loading cartridges into a magazine of a firearm. An elongated sleeve has an open distal end and a hollow therethrough sized and shaped to receive a stack of cartridges. A collar at a proximal end of the sleeve has an enlarged opening sized and shaped to receive an open proximal end of the magazine. A plunger has a proximal end selectively receivable in the open distal end of the sleeve, and has an elongated shank slidable in the hollow of the sleeve and an enlarged head. The plunger presses the stack of cartridges through the hollow of the sleeve, out the enlarged opening of the collar and into the magazine.

US12352522 - Air gun with mixed gas charge

An air gun includes a first reservoir storing a first compressed gas, e.g., compressed air, and a second reservoir storing a second compressed gas different from the first compressed gas, e.g., helium. A mixed gas system mixes a supply of the first compressed gas and a supply of the second compressed gas as a gaseous mixture. A firing valve is selectively actuated to release the gaseous mixture to a barrel of the air gun, to fire the air gun.

US12352523 - Insecticidal gun switchable between single firing mode and continuous firing mode

An insecticidal gun including a gun body, a feeding member, a percussion member, a trigger, and an electric drive mechanism. The gun body includes a launching chamber; the feeding member is slidably connected to the gun body and includes a material storage chamber configured to communicate with the launching chamber. The electric drive mechanism is configured to drive the percussion member to move in the launching chamber. When the percussion member is driven by the electric drive mechanism to move, the feeding member moves along the axial direction of the gun body, so that the material storage chamber communicates with the launching chamber intermittently. The trigger is rotatable with respect to the gun body to activate or inactivate the electric drive mechanism.

US12352524 - Air gun with automatic cocking

An automatically cocking air gun includes a cocking mechanism including a compression tube, a compression piston, and a spring. An actuator assembly is coupled to the compression tube to selectively move the compression tube between a firing position and a cocking position. The actuator assembly includes a lead screw and a lead screw nut driving a carriage to move the compression tube.

US12352525 - Modular stock for a weapon

A removable stock for a crossbow includes a body. The body includes a front end and a mounting feature. The front end includes a stock interface that is configured to removably couple the stock to a rear interface of a crossbow. The mounting feature is configured to couple a projectile to the body of the removable stock.

US12352526 - Bowmar nose button

A system for aiming an archery bow may include a tobe defining a longitudinal axis and may include a longitudinal slit. The tube and the longitudinal slit are configured to engage an archery bow string along the longitudinal axis of the tube. A portion of the tube may further include a projection having a curved surface and the projection may include a frustum.

US12352527 - Linkage dual mode release

The linkage dual mode release includes a main body, a string hook, a linkage lock, a thumb trigger, a sear, and a trigger bar flange. The main body has a first finger groove arm. The string hook is elastically pivoted to one end of the main body for releasably hook to a bow string. The linkage lock is elastically pivoted to an outer surface of the main body, and the linkage lock is located adjacent the other end of the main body opposite to the string hook. The linkage lock has a locking arm and a lever arm extending to the main body. The thumb trigger is mounted to the linkage lock extending away from the main body. The sear is pivoted to the main body, a rest member is located between the sear and the main body, the sear comprises a second finger groove arm.

US12352528 - Clamp mount system for a firearm arm brace

A device may include an elongated body comprising an opening configured to receive a receiver extension tube of a firearm. A device may include a brace body affixed distally to the elongated body and comprising a window configured to receive a clamp mount, wherein the clamp mount is configured to retain the arm brace in a fixed position on the receiver extension tube and comprises: one or more clamps comprising at least one through-hole and one or more pads, wherein the one or more pads are configured to engage with the receiver extension tube via adjustment of one or more fasteners interfacing with the at least one though-hole.

US12352529 - Holster, holster accessory, and related methods

A firearm holster has a holster body that includes a plurality of walls defining a encasement for the firearm and an opening for inserting the firearm into that encasement. The walls include an interior wall, as well as an exterior wall disposed opposite the interior wall. The holster also includes a first magnetic element disposed on the holster body, and a second magnetic element that is configured to cooperate with the first magnetic element to magnetically attract the first and second magnetic elements to one another. The second magnetic element includes a coupler for coupling the second magnetic element to an article of clothing.

US12352530 - Muzzle loading system

A muzzleloader includes a shot holding member having a first end configured to receive an object to be loaded into the muzzle and a second end; the shot holding member including a hollow shot holding chamber; and an actuator located at the first end of the shot holding member. The actuator includes a plunger having a head portion, a connector configured to connect the actuator to the first end of the shot holding member, a first O-ring configured to encircle the connector and located between the connector and the first end of the shot holding member, and a second O-ring configured to encircle the plunger and located between a head portion of the plunger and the connector.

US12352531 - Weapon anti-cant indicator

An anti-cant indicator assembly, components thereof, and associated methods. The anti-cant indicator assembly indicates the orientation of a weapon with respect to vertical. The anti-cant indicator assembly includes a mount configured to mount to the weapon, a level including a vial containing a bubble and a pivot connection connecting the level to the mount. The pivot connection is configured to permit movement of the level with respect to the mount about the pivot connection between an operational position in which the bubble can be referenced by the user for indicating orientation of the weapon with respect to vertical, and a stowed position different from the operational position. The pivot connection can include a retainer configured to releasably retain the level in at least one of the operational position or the stowed position. The level can be selectively movable with respect to the mount to calibrate the anti-cant indicator.

US12352532 - Aiming devices and methods thereof

Aiming devices and methods thereof are provided. First, a ranging unit is used to perform a ranging operation on an object to obtain a corresponding object distance. Then, a plurality of compensation positions are displayed on a display unit of an aiming device, and a ballistic compensation program is used to calculate a target position among the compensation positions according to the object distance. When the aiming device moves, the number of the compensation positions displayed on the display unit will be changed. It is to determine whether the aiming device is located at the target position. When the aiming device is at the target position, the display unit will only display the target position among the compensation positions or no longer performs the compensation.

US12352533 - Next shot compensation system for weapons

Use of a muzzle velocity detector with a display allows for a rapid calculation of a second shot firing solution based on a first shot analysis. A doppler radar emitter and detector is located in a housing. The housing has a mount that allows it to be coupled to a hand guard on a rifle. This allows for the muzzle velocity to be detected very close to the end of the barrel. Information about the bullet can be preloaded into a ballistics calculator. The ballistics calculator can be integrated with the muzzle velocity detector or coupled wirelessly to it. The impact location of the first shot is identified and that “drift” is used with muzzle velocity and many other factors to quickly provide a compensation to be used with the sight to ensure the second shot is more accurate.

US12352534 - Systems and methods for simulated rifle rounds

An apparatus includes a bolt carrier assembly and a bolt assembly. The bolt assembly includes a bolt body member, the bolt body member having a proximal end portion and a distal end portion, and defining a longitudinal axis extending from the proximal end to the distal end. The bolt assembly includes a guide member attached to proximal end portion and the guide member is parallel to the longitudinal axis. The bolt assembly further includes a bolt chamber interface attached to a distal end portion, the bolt chamber interface nests within an interior wall of a firearm chamber, and the bolt chamber interface limits rotational and axial movement of the bolt assembly relative to the firearm chamber. The bolt assembly includes a bolt nipple connector for mating with a nipple assembly of a magazine assembly.

US12352535 - Impact resistant material

The current disclosure is directed to an impact resistant material made from a novel melanin composite. It has been found that using these composites allows for the production of effective ballistic protection and blast containment materials.

US12352536 - Projectile and method for stopping aerial vehicles

A projectile and method for stopping aerial vehicles. The projectile comprises a shell—and a bunch of filaments. The bunch is wound in a coil and placed inside the shell. The projectile according to the solution may be brought to a target by different methods and utilising different means. For example, the projectile may be fired with compressed air or a propulsion charge, by using a compressed air weapon or rocket launcher. In addition, the projectile may be taken to the target by using a rocket or aerial vehicle.

US12352537 - Mechanisms for magazine lock and release

A conducted electrical weapon (“CEW”) comprises one or more mechanisms for receiving, aligning, and maintaining a position of a magazine within a bay of the CEW. Bias spring and datums may be used to align the magazine to be coupled to the CEW, wherein bias springs are configured to apply pressure to push the magazine to interact with datums to align the magazine. A spring and ramp mechanism may be used to maintain a position of the magazine coupled to the bay of the CEW. Respective grades of a locking ramp and a release ramp are used to lock a spring in place when a magazine is coupled to the bay of the CEW.

US12352538 - Light reflectance matching camouflage system

An article of manufacture comprises a surface that includes a first region and a surface treatment over the first region. The first region includes a depiction of a real-world object and the surface treatment exhibits a first light reflectance value. The real-world object exhibits a second light reflectance value, and the first light reflectance value is within 30 percent of the second light reflectance value. The article of manufacture may include an article of clothing or a durable good.

US12352539 - Aircraft wall assembly

An aircraft wall assembly comprises a panel comprising a ballistic protection layer configured to deform to absorb energy during a projectile impact; and a barrier, wherein the ballistic protection layer comprises a constrained portion, wherein deformation of the ballistic protection layer is constrained at the constrained portion such that the energy absorbed by the constrained portion during the projectile impact is reduced; wherein the barrier is configured to deflect projectile material that passes through the constrained portion of the panel during the projectile impact.

US12352540 - Ballistic Personal Protective Equipment (PPE) body armor and methods of producing the same

Disclosed herein apparatus and associated methods relate to body armor comprising a plate having a ceramic tile bonded to front and back polyolefin layers by front and back pretreated prepreg layers. The pretreated prepreg layers may comprise epoxy resin sheets precooled for storage at 0° F. The polyolefin layers may comprise 940 and 1880 denier extruded polyolefin sheets. The stored cold prepreg sheets may be heated and the hot prepreg sheets used to join the ceramic tile with the extruded polyolefin sheets. The ceramic tile may be bonded to the extruded polyolefin sheets by cooling the ceramic tile, extruded polyolefin sheets and hot prepreg sheets in a −58° F. freezer, forming a cooled bonded plate. A backer comprising stacked plastic sheets may be connected to the plate. The cooled bonded plate may be cured by a curing cycle comprising 260° F. and 120 PSI using an autoclave.

US12352541 - Layer composite door systems

Composite door systems that are configured for providing safety, security, and resistance to physical impacts or threats (natural and man-caused), and which can be utilized in barrier structures, such as for doors. The composite door systems may include one or more layers, each of which may have one or more fiber layers, such as fabric layers or plastic layers. The composite door systems may further include one or more additional layers of a sheet material, a fill material, or the like. The composite door systems are infinitely customizable and configured to be adapted to a variety of applications, and scalable levels of protection.

US12352542 - Inserts having ballistic protection layer

An insert for structurally reinforcing a cavity of a structural member, wherein the insert includes a ballistic material to prevent penetration of the structural member by flying debris, fragmentation, or both.

US12352543 - Moving target trainer

A system for moving a practice target includes a capstan winch assembly including a drive wheel; a target sled; a rope that connects the target sled to the drive wheel in an endless loop, wherein a first end of the rope is connected to a first end of the target sled and a second end of the rope is connected to a second end of the target sled; a sensor configured to detect a location of the sled; a motor configured to control rotation of the drive wheel bi-directionally, wherein the rope is provided on the drive wheel so as to move by rotation of the drive wheel; a user input unit located remotely from the capstan winch assembly and the target sled; and a processor including a memory programmed to control rotation of the drive wheel, thereby controlling movement of the target sled.

US12352544 - Nonfragmentation missile and method of delivering a payload therewith

A missile for delivering a payload and having a longitudinal axis. The missile comprises a nonfragmenation multi-directional munition having a hollow collar. The hollow collar has an inner surface and an outer surface opposed thereto and a first plurality of ports extending therebetween in a substantially radial direction. An ammunition is disposed in each port of the first plurality of ports, oriented outwardly from the longitudinal axis with an ignition source for expelling such ammunition from the collar. The missile also has at least one flight control surface for controlling a trajectory of the missile during flight and a controller for controlling the flight of the missile and the ignition source.

US12352545 - Reduced stiffness barrel fired projectile

In various embodiments, a projectile includes a projectile body including a tail portion, a nose portion, a barrel engaging portion between the nose portion and the tail portion, and a metal jacket that defines an exterior of the projectile that surrounds an interior solid core. In one or more embodiments the projectile includes one or more circumferential grooves defined in the interior core portion, each of the one or more circumferential grooves covered by and positioned adjacent to the metal jacket and within the barrel-engaging portion. In various embodiments, during firing of the projectile, the one or more circumferential grooves define a void that allows material of one or more of the metal jacket and interior solid core to displace into the void for reduction in radial stiffness to the projectile in the barrel engaging portion.

US12352546 - Firearm ammunition component and method of use

A firearm ammunition component comprising a projectile body having a circular cross-section and a central channel on a forward face, a nose portion forward of the projectile body, and a gas check member rearward of the projectile body. The nose includes a curved forward end, a rear end opposite the forward end, and a stabilizing element/band between the forward and rear ends extending radially outwards from at least a portion of the nose. A shank extends from the nose rear end and within the body central channel. The gas check member includes a rearward annular wall portion forming a combustion chamber. The firearm ammunition component is adapted so only the stabilizing element/band contacts the firearm bore, ensuring loading central the bore.

US12352547 - Modifying a projectile casing

An apparatus, system, computer-readable medium, process, die, or combination thereof to modify a projectile casing. For example, a die and mandrel can be used to shape, resize, or otherwise modify a projectile casing. A die can include different portions or sections, where the portions or sections are designed to shape or size different portions of the projectile casing such as the neck, shoulder, or body of a projectile casing. A method to insert a projectile casing into a die, where the die already includes a mandrel, and then extracting the mandrel while the die and projectile casings are held in place.

US12352548 - Soft reusable grenade round for team-based shooting game

A soft reusable grenade round for team-based shooting game having a top shell assembly and a bottom shell assembly. The top shell assembly has a rounded top shell defining a cavity and at least one hole. The bottom shell assembly is removably coupled to the top shell assembly. The bottom shell assembly has a bottom shell defining an upper cavity and a lower cavity separated by an interior wall, and tabs separated by grooves in line around a perimetral surface of the bottom shell. The top shell assembly and the bottom shell assembly are reusable and made of a soft material such as rubber.

US12352549 - Non-pyrotechnic diversionary device

A diversionary device including a triggering mechanism, a payload and a compressed gas container containing a compressed gas. The compressed gas is non-flammable. The triggering mechanism is coupled to the compressed gas container, and conveys at least some of the gas from the compressed gas container to the payload after a predetermined delay after the triggering mechanism is activated. The gas conveyed to the payload causes the payload to produce a diversionary acoustic effect.

US12352550 - Inertial igniters for low-G and long duration firing acceleration munitions and the like

An inertial mechanism including an activating mechanism and a time delay mechanism coupled to the activating mechanism for delaying a time in which the activating mechanism is activated after a predetermined acceleration profile occurs. Where a coupling of the time delay mechanism with the activating mechanism to activate the activating mechanism initially moves away from the coupling when the predetermined acceleration profile occurs before the coupling occurs after a time delay.

US12352551 - Detonating cord depth locating feature

A detonator housing facilitates assembly of detonator components of a perforating gun. In an example, the detonator housing comprises a housing body configured for coupling to a charge tube of a perforating gun. A detonator receptacle is formed on the housing body for receiving a detonator. A detonating cord receptacle is formed on the housing body adjacent the detonator receptacle for receiving an end portion of a detonating cord in an overlapping relationship with the detonator. A detonating cord stop is formed on the detonating cord receptacle to limit an insertion depth of the detonating cord within the detonating cord receptacle.

US12352552 - Wireless initiating arrangement

A wireless detonator initiating arrangement ( 10 ) which includes a first housing ( 20 ) which contains a receiver ( 24 ) and a signal processor ( 28 ), a second housing ( 36 ) which contains an explosive ( 38 ), a casing ( 52 ) which contains an initiator ( 16 ) which is responsive to the signal processor ( 28 ) to ignite the explosive ( 38 ) and a third housing ( 46 ) which contains a power source ( 50 ) to power the signal processor ( 28 ).

US12352553 - Remote firing system

A remote firing system for remotely detonating an explosive charge includes a smart controller that utilizes a unique encryption key to generate encrypted command and control messages. The messages include a detonation precondition that must occur before detonation. A bridge transceiver communicates with the smart controller and receives the encrypted messages generated from the smart controller. The bridge transceiver transmits RF signals containing the encrypted messages. At least one remote communicator is in communication with the bridge transceiver and configured to be connected to the explosive charge. The remote communicator receives the RF signals transmitted by the bridge transceiver, processes these received RF signals to obtain the encrypted messages and decrypts the encrypted messages with the encryption key to extract the detonation precondition. The remote communicator generates a trigger signal that causes detonation of the explosive charge upon fulfillment of the detonation precondition.

US12352861 - Crosswind speed measurement by optical measurement of scintillation

The present disclosure describes methods and systems for measuring crosswind speed by optical measurement of laser scintillation. One method includes projecting radiation into a medium, receiving, over time, with a photodetector receiver, a plurality of scintillation patterns of scattered radiation, comparing cumulative a radiation intensity for each received scintillation pattern of the received plurality of scintillation patterns, and measuring a cumulative weighted average cross-movement within the medium using the compared cumulative radiation intensities.

US12352884 - Outdoor wireless gunshot locating system for securing sited assets

Disclosed herein are wireless networks of gunshot detector arrays providing the firing location and trajectory of a gunshot, while being tolerant of clock drift among the network. Individual gunshot detectors may be battery-powered employing one or more microphones. Detectors may time-synchronize infrequently to conserve power. Detectors may communicate wirelessly to a central device that evaluates gunshot candidates, associates those candidates between detectors to individual gunshot events, and performs calculations to arrive at a solution for a gunshot direction and/or origin. Combinations of contemporaneous gunshot candidates may be reviewed for a best positional solution. The location of gunshot events may be displayed on an overhead image or map, to persons providing remedial actions, optionally with trajectories and potential zones of impact and damaged assets.

USD1082997 - Ammunition magazine

USD1082998 - Firearm shell holder

USD1082999 - Rifle bolt

USD1083008 - Secondary optic mount for a firearm

US12343297 - Human interface device for exoskeleton apparatus

A human interface device is configured to be coupled to a trunk of a person and comprises a frame, a fabric coupled to said frame configurable to be under tensile forces, and a belt configured to be coupled to two side edges of said frame wherein when said belt is worn by said person, an area of said fabric will be pushed against the person's lower back conforming to the shape of the lower back of said person. In operation when said human interface device is worn by said person, the weight of any load coupled to or supported by said frame will be partially supported by the friction force between the area of said fabric which is pushed against the person's lower back, and the person's lower back allowing said person to carry said load.

US12345138 - Well perforator evaluation system and method

A testing system for a shaped charge of a perforating gun, the testing system including a housing; a casing assembly located inside the housing; a perforating gun having at least one shaped charge, the perforating gun being located within the casing assembly; a sample material located within the housing, and in direct contact with the casing assembly; a wellbore accumulator in direct contact with the casing assembly and configured to supply a first fluid, at a wellbore pressure, inside the casing assembly; and a formation accumulator in direct contact with the sample material and configured to supply a second fluid, at a formation pressure, on the sample material.

US12345400 - Deterrent device attachment having light source with thermal management

Deterrent device attachments are provided each having a light emitting thermal source positioned by a support board to emit light from within a housing of the deterrent device, with the support board bent to provide surface areas to dissipate heat generated by the light emitter.

US12345485 - Pistol slide restraining tool

A pistol slide restraining tool has a frame, a first restraint element connected to the frame and configured to engage a lower portion of the downwardly-extending grip, a second restraint element connected to the frame at a level above the first restraint element and configured to engage a rear portion of the downwardly-extending grip at an intermediate position above the lower portion of the downwardly-extending grip, a third restraint element connected to the frame and having a slide engagement facility configured to selectably engage the reciprocating slide, and the third restraint element being connected to the frame by an adjustable element operable to move the reciprocating slide from a forward battery position to a rearward recoil position and to restrain the reciprocating slide in the recoil position. The first restraint element may engage a forward-facing portion of the downwardly-extending grip.

US12345486 - Firearm cartridge ejector

A firearm cartridge ejector system is disclosed that may include a bolt or a bolt carrier group, and an ejector that may be configured to eject an ammunition cartridge from the firearm bolt or bolt carrier group. The ejector may further include a stem configured to engage an ejector spring, and an ejector face that may be reniform-shaped and attached to the stem and configured to engage and eject the ammunition cartridge.

US12345487 - Payload platform accountability control system

An accountability control system may be configured to provide one or more accountability controls to a payload platform. A payload platform may comprise a device configured to deploy a payload. The accountability controls may comprise one or more of an authentication control, an authorization control, a custody control, or a security analysis control. The accountability controls may restrict or disable access and operations of the payload platform. The accountability controls may also create a chain of custody of operations and events taking place in the accountability control system and the payload platform.

US12345488 - Self-loading pistol with a pre-cocked firing pin with an assembly for safe disassembling

A self-loading pistol with a pre-cocked firing pin and with an assembly for safe disassembling, comprising a trigger bar ( 7 ) with a peripherally at least partly closed frame part ( 7 c ) to surround a pistol magazine ( 39 ). The frame part ( 7 c ) having, with respect to the shooting direction, a vertical surface ( 7 m ) arranged on its rear side, and on the front side, a lug ( 7 f ) for catching a firing pin ( 3 ). The trigger bar ( 7 ) is arranged in the pistol frame on a cross pin ( 29 ) that crosses the vertical surface ( 7 m ). The trigger bar ( 7 ) is moveable by means of a trigger ( 15 ). In the pistol frame, over the trigger bar ( 7 ), a disassembling lever ( 11 ) is arranged that has a button ( 11 d ) and a pivot ( 11 a ) that carries a cam ( 18 ) for engagement with the trigger bar ( 7 ). The cross pin ( 29 ) passes through a guide cam ( 7 e ) arranged in the vertical surface ( 7 m ). The vertical surface ( 7 m ) has, at its side facing the magazine ( 39 ), a contact surface ( 7 i ) for the magazine ( 39 ). An arm ( 7 k ) protrudes from the frame part ( 7 c ) at its front side with respect to the shooting direction. A pulling thumb ( 7 a ) and at a distance from it, a support stop ( 7 j ) being arranged at the free end of the arm ( 7 k ). The cam ( 18 ) has a nose ( 18 a ) at one side and a protrusion ( 18 b ) at the opposite side. The nose ( 18 a ) reaches between the pulling thumb ( 7 a ) and the supporting stop ( 7 j ) of the trigger bar ( 7 ). The protrusion ( 18 b ) is bringable into a recess ( 1 a ) at the facing side of the slide ( 1 ).

US12345489 - Trigger mechanism for a firearm

Embodiments of the present disclosure relate to trigger mechanisms for firearms. In one aspect of the present disclosure, the trigger mechanism can include a linkage between a striker sear and a main sear to control an amount of force exerted on the main sear by the striker sear. A portion of the force exerted on the striker sear by the striker can be exerted on the main sear through the sear linkage. In another aspect of the present disclosure, trigger mechanisms are described which additionally, or alternatively utilize one or more biasing members to provide a variable trigger pull weight.

US12345490 - Extended life composite matrix-wrapped lightweight firearm barrel

A firearm barrel and a method for manufacturing the same are disclosed. In some embodiments, a barrel for a firearm may be provided. The barrel may comprise a chamber, an entire geometry of which is formed to a final depth. After providing the barrel with the entire geometry of the chamber being formed to the final depth, a material modification process that modifies one or more properties of the barrel may be performed. After performing the material modification process, a composite matrix wrapping that surrounds an outer circumference of the barrel over a length of the barrel may be applied.

US12345491 - Diverging central bore for firearm sound suppressor

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.

US12345492 - Hybrid heterogeneous material baffle for firearm noise suppressor

Provided is a firearm noise suppressor baffle formed of at least two material zones. The zones are made of materials having dissimilar coefficients of thermal expansion from each other and have an interface substantially transverse to a bore axis. The baffle includes an annularly interrupting gap having a width. The gap is formed in at least one of the material zones and extends substantially longitudinal relative to the bore axis from an edge of the baffle.