Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

45results about "Cartridge extractors" patented technology

Apparatus and methods for optimizing direct gas operated firearms

PendingUS20260153295A1Cartridge extractorsWeapon assembly/disassemblyStructural engineeringGun barrel
Apparatuses and methods are provided for an optimized direct gas operated firearm. The firearm includes an upper receiver coupled with a lower receiver by a tensioning screw that reduces wobble between the upper and lower receivers. A barrel extension is configured to eliminate misalignment during installation into the upper receiver. A bolt carrier includes a reinforced bolt assembly and a forward-biased dwell weight. The bolt assembly includes an extractor and an extractor pin that simplify disassembly of the firearm. A handguard includes locks that attach to a barrel nut area of the firearm. The locks clamp onto the barrel nut area to align the handguard with the upper receiver. An ambidextrous bolt catch release assembly is operable from either side of the lower receiver. A bolt catch release paddle is disposed at the front of a trigger guard to provide easy access from either side of the lower receiver.
Owner:SUREFIRE LLC

Ammunition blank and corresponding bolt

PendingEP4639070A2Cartridge extractorsTraining ammunition
An ammunition cartridge casing has a casing base with a proximal end surface, a casing body defining an inside volume, and a distal end portion. The casing base defines a primer pocket in communication with the inside volume of the casing body, where the primer pocket is sized and configured such that when a primer is installed in the primer pocket, a proximal face of the primer is recessed into the base at least 0.010" with respect to the end surface. Blank ammunition made with the cartridge casing is configured for use with a rifle having a bolt with a boss on the breech face that corresponds to the recessed primer.
Owner:SIG SAUER INC

Shell withdrawing mechanism of multi-tube remote transmitter

PendingCN121206970ACartridge extractorsStructural engineeringTappet
The invention belongs to the technical field of multi-tube grenade launchers, and particularly discloses an ejection mechanism of a multi-tube remote launcher, which comprises an ejection jack seat, a guide part, an ejection jack and an ejection driving part, the ejection tappet is movably arranged between the two bullet holes in the middle layer, and four mounting arms are arranged on the ejection tappet in the circumferential direction of the ejection tappet; the number of the ejection stiles is four, the ejection stiles are correspondingly installed on the four installation arms respectively, the installation positions of the four ejection stiles form four vertexes of a rectangle, three bullet holes are evenly distributed in the outer side of each ejection stile, and the end, away from the ejection stile base, of each ejection stile movably penetrates through the rear linkage and is provided with ejection bullet teeth. Each ejection tooth is configured to synchronously eject cartridge cases in three cartridge holes in the outer side of the corresponding ejection jack; and the ejection driving piece is connected to the rear link. According to the ejection mechanism, the limited space under the 323 layout is fully utilized, ejection operation is efficiently and accurately conducted on the cartridge cases in all the cartridge holes, and the ejection problem under the specific layout is solved.
Owner:HUBEI JIANGHUA MACHINERY

GUN

ActiveDE602022029179T2Cartridge extractorsBreech mechanisms
Owner:FABBRICA DARMI PIETRO BERETTA SPA

Break-barrel firearm with mechanical extraction assembly

ActiveUS12540784B2Cartridge extractorsBreech mechanismsStructural engineeringLongitudinal development
A firearm comprising at least one frame defining a housing seat of a barrel group; and a barrel group comprising at least one barrel with longitudinal development axis (A), the barrel group being mounted in a tilting manner with respect to the frame between a position in which the barrel group engages the housing seat and a position in which the barrel group is rotated with respect thereto. The barrel group comprises at least one extractor device associated with the barrel and configured to at least partially expel at least a portion of an ammunition from the at least one barrel. The extractor device is configured to selectively operate in a first mode in which it integrally ejects a casing of an exploded ammunition and in a second mode in which it accompanies part of an unexploded ammunition in partial exited from the at least one barrel.
Owner:ZOLI ANTONIO SRL

Simple ballistic equipment ejector

ActiveCN223564837UCartridge extractorsMechanical engineeringPhysics
The utility model provides a simple ballistic equipment ejector which comprises a fixing part (1), an expansion shell part (2), a hand wheel (3), a connecting part (4), a force applying handle (5) and a slide way (6), and the front end of the fixing part (1) is inclined; an open slot is formed in the front end of the expansion shell part (2); external threads are arranged at the end parts of the fixing part (1) and the slide way (6); internal threads are arranged at two ends of the connecting part (4); the fixing part (1) and the slide way (6) are fixed at the two ends of the connecting part (4) through the external threads and the internal threads to form a basically long-strip-shaped appearance structure; the expansion shell part (2), the hand wheel (3) and the power generation handle (5) are movable parts; the fixing part (1) can penetrate into an inclined shoulder of a broken bullet shell (7); and the expansion shell part (2) can freely slide on the slide rail. The tool is convenient to operate, simple in structure and portable, can be disassembled by a single person, and can be assembled into a piece; part of components can be replaced so as to meet requirements of ballistic apparatuses with different specifications and sizes.
Owner:HEILONGJIANG NORTH TOOLS CO LTD

Multi-caliber bolt assembly and method of using different sizes of ammunition in a firearm

PendingUS20250347483A1Cartridge extractorsBreech mechanismsStructural engineeringCartridge
A multi-caliber bolt assembly includes a bolt body, a bolt face, an extractor, a case guide, and a resilient element. The extractor is movably coupled to the bolt body. The extractor is designed to engage and retain a rim of the cartridge casing. The case guide is movably coupled to the bolt body opposite the extractor. The case guide is designed to engage the cartridge casing. The resilient element is coupled to the extractor and the case guide. The resilient element is designed to exert a force to move the extractor and the case guide together to engage and hold the cartridge casing against the bolt face when the extractor and the case guide are moved apart against the force by insertion of the cartridge casing between the extractor and the case guide regardless of the size of the cartridge casing.
Owner:BERO TIM

Bolt carrier and bolt for gas operated firearms

PendingUS20250389502A1Cartridge extractorsBreech mechanismsMechanicsRetaining Pin
An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearms gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pins annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end and an extractor recess. The extractor recess is constructed to accommodate an enlarged extractor claw while not undercutting the bolt lugs adjacent thereto. The extractor engages approximately 57% more of a seated ammunition cartridges rim as compared to some prior art AR15 / M16 type extractors used with automatic firearms chambered in 6.8 SPC. The result is an improved bolt and bolt carrier which provides for increased operational reliability.
Owner:LWRC INTERNATIONAL LLC

Apparatus and methods for an extractor pin for direct gas operated firearms

PendingUS20260133002A1Cartridge extractorsBreech mechanismsCartridgePhysics
An apparatus and methods are provided for an extractor pin for optimizing the operation of a direct gas operated firearm. The extractor pin comprises an elongated member that includes a center portion configured to seat within holes in parallel prongs of the cartridge extractor. First and second end portions of the extractor pin seat within transverse holes in the bolt assembly. The center portion has a diameter that is greater than the diameter of the first and second end portions. The center portion fits loosely in the holes of the parallel prongs, allowing the cartridge extractor to pivot on the extractor pin. The first and second end portions are configured to be lifted to the top of the transverse holes such that the center portion remains disposed in the parallel prongs and centered between the transverse holes.
Owner:SUREFIRE LLC

Small firearms and method of operating small firearms

ActiveUS12535280B2Cartridge extractorsBreech mechanismsMuzzleStructural engineering
A small firearm includes: a receiver; a barrel including a barrel bore axis; an action including a bolt head; and a guide surface, the receiver being configured for (i) at least indirectly receiving the barrel including a locking mechanism area, a chamber, a guide area, and a muzzle arranged successively in the longitudinal direction, and (ii) at least indirectly receiving the action movably arranged within the receiver along the longitudinal direction from an open position to a closed position, the guide surface, which is within a locking space, being configured such that at least one of (i) an entry of a cartridge case under an influence of a torque during a movement of the action from a closed position to an open position is limited due to an interaction of an ejector and an extractor and (ii) an exit of the cartridge case is favored.
Owner:SCHMEISSER GMBH

Ejector kits, assemblies, and methods of use

PendingUS20260055981A1Cartridge extractorsMechanical engineeringPhysics
Kits for replacing the ejector of a shotgun include an ejector spring and a base member, where the base member is designed and adapted to be affixed to the interior surface of the receiver of the shotgun, and further to engage the ejector spring in a cantilevered tongue-and-groove (TAG) configuration. TAG ejector kits, TAG ejector assemblies, and TAG ejectors are suitably configured for operation in conjunction with pump action shotguns.
Owner:WEAPONS ARMORER INC

Caseless bolt-action firearm

PCT designated stageWO2026052998A1Safety arrangementCartridge extractorsTrajectory of a projectileShotgun shot
The invention relates to firearms, and more particularly to a caseless bolt-action firearm. A caseless bolt-action firearm comprises a receiver (1) with a support (2), a bolt (63), a firing pin (36), a trigger (28), a magazine latch (27), a safety catch (31), a safety catch bracket (24), a trigger guard (3), an add-on stock (6), a grip (14), a magazine (15) and a barrel (18), wherein in the front part of the receiver (1) there is mounted a weapon chamber (17), and the bolt (63) contains a guide rod (41) for a conical bolt bushing, a triple-layered rifled cartridge (45) and a triple-layered smooth cartridge (44). The invention makes it possible to increase the operating reliability of a caseless bolt-action firearm in difficult conditions, easily eliminate delays, simplify loading and unloading, enable the firearm to operate reliably under combat conditions with forced feed of ammunition, including soiled ammunition, improve the stability of the projectile trajectory and increase firing accuracy both from stable positions and in the case of point shooting.
Owner:MAKAROV GEORGY GEORGIEVICH +3

Unjamming multitool for firearms

ActiveUS12529537B2Cartridge extractorsWeapon cleaningStructural engineeringMechanical engineering
An unjamming multitool for use with a firearm, including a housing having opposing parallel side plates joined at an edge and having a first end and an opposing second end, and defining a cavity therebetween. A first pivot post and a second pivot post are carried at the first and second ends of the housing. An extractor assembly is pivotally coupled to the first end of the housing by the first pivot post and movable between a stored position adjacent the housing and a deployed position wherein the extractor assembly is pivoted outwardly from the housing about the first pivot post to a stop. A bolt over-ride claw coupled to the opposing second end of the housing by the second pivot post, and movable between a stored position generally within the cavity of the housing and a deployed position pivoted outwardly from the cavity to a 90 degree stop. A collapsible range rod movable between a stored position against one of the opposing parallel side plates and a deployed position extending from the one of the opposing parallel side plates.
Owner:KENT HOWARD

rifle

ActiveEP4166895B1Cartridge extractorsBreech mechanisms
The invention relates to a rifle (1) which comprises a fixed main body (2) comprising a barrel (9), a receiver (6) comprising an upper opening (60), and a breech element (8) . The rifle (1) also comprises a bolt carrier assembly (3) that is axially movable between an advanced shooting configuration and a retracted rearming configuration, and vice versa. The bolt carrier assembly (3) comprises: - a bolt carrier (30) positioned on the receiver (6) at the upper opening (60) which is axially slidably movable, comprising a passage (300) extending transversally; - a firearm handle (4) comprising an outer portion (41) grippable by a user and an inner portion (40) specifically shaped for complementarily housing in the passage (300), being insertable both on one side and on the other; - a bolt assembly (5) partially accommodated in said bolt carrier (30), comprising a bolt body (50) and a bolt head (55), wherein the bolt head (55) is mountable onto the bolt body (50) in a first angular position and in a second angular position, which are reciprocally inverted, the bolt head being equipped with a cartridge ejector. According to the invention, the rifle (1) is configurable for a right-handed or a left-handed person by changing the position of the firearm handle (4) and the angular position of the shutter head (55).
Owner:FABBRICA DARMI PIETRO BERETTA SPA

Caseless ammunition for a firearm and mechanism for extracting caseless ammunition

ActiveEP3637038B1Cartridge extractorsCartridge ammunition
The group of inventions relates to caseless ammunition and to a mechanism for extracting caseless ammunition. The ammunition comprises a shell, a propellant composed of combustible material and placed into a shot chamber, and an igniting unit. Furthermore, the shell body has a cylindrical part which passes into an inclined surface of a leading cylindrical part which passes into a rear cylindrical part. The inclined surface is formed at an angle of 30-45° to the longitudinal axis of the shot body. The leading cylindrical part has a wall thickness equal to 0.122D, where D is the external diameter of the ammunition. The rear cylindrical part has a smaller diameter than the diameter of the leading cylindrical part. A step is formed between the leading cylindrical part and the rear cylindrical part. The rear cylindrical part ends with a bevel. An internal cylindrical input opening, into which the igniting unit is mounted, is formed in the shell body. The technical result consists in postponing the moment of self-ignition of ammunition in a heated weapon.
Owner:SHARKOV OLEKSII OLEKSANDROVYCH +5

Bolt action firearm

ActiveEP4162222B1Cartridge extractorsBreech mechanisms
A bolt action firearm has a frame defining a bolt passage, an elongated bolt assembly configured to reciprocate within the bolt passage, the elongated bolt assembly defining a firing pin passage, a firing pin assembly received in the firing pin passage, a bolt handle having an inner end configured to removably engage the firing pin assembly and an opposed free end, the bolt handle inner end having opposed spaced-apart prongs defining a bolt handle channel, the bolt handle defining a pocket associated with the bolt handle channel, the firing pin assembly having a handle engagement portion having a first section configured to be received in the bolt handle channel, and the firing pin assembly having a second section adjacent to the first section such that when the second section is biased into the pocket, the firing pin assembly is secured against passage through the bolt handle channel.
Owner:CARACAL INTERNATIONAL

Bolt carrier assembly for a firearm

PendingEP4649275A1Cartridge extractorsBreech mechanisms
A bolt carrier assembly for improving primary extraction in a firearm, wherein the bolt carrier assembly includes a bolt carrier and a bolt carried by the bolt carrier, wherein the bolt carrier assembly includes a first camming arrangement for rotating the bolt relative to the bolt carrier for locking the bolt against the locking piece, and a second camming arrangement for forcing longitudinal movement of the bolt relative to the locking piece.
Owner:WEDGE TAIL IND R & D PTY LTD

Ammunition blank and corresponding bolt

ActiveUS12467727B2Cartridge extractorsTraining ammunitionStructural engineeringMechanics
An ammunition cartridge casing has a casing base with a proximal end surface, a casing body defining an inside volume, and a distal end portion. The casing base defines a primer pocket in communication with the inside volume of the casing body, where the primer pocket is sized and configured such that when a primer is installed in the primer pocket, a proximal face of the primer is recessed into the base at least 0.010″ with respect to the end surface. Blank ammunition made with the cartridge casing is configured for use with a rifle having a bolt with a boss on the breech face that corresponds to the recessed primer.
Owner:SIG SAUER INC

A general artillery recoil and bore comprehensive detection device

ActiveCN117537655BCartridge extractorsAmmunitionElectrical batteryControl theory
The application relates to a general artillery shell ejection and bore comprehensive detection device, which comprises a basic module and a functional module; the basic module comprises a rotating unit, a braking unit, a battery unit and a power unit; the functional module comprises a fuze rotating ejection unit, an ejection unit and / or a bore peeping unit; the rotating unit is used for splicing with the functional module and is also used for providing rotating power for the functional module; the braking unit is used for providing a braking function; the power unit is used for providing a moving function; the battery unit is used for power supply; the fuze rotating ejection unit is used for separating a fuze from a shell; the ejection unit is used for pushing the shell away from a bore; and the bore peeping unit is used for providing a bore peeping function. The general artillery shell ejection and bore comprehensive detection device can provide walking, braking and rotating functions through the basic module; different functional modules provide different functions; the functional modules are spliced on the main structure to realize the functions of rotating fuze, ejection and bore peeping; and the artillery maintenance and support requirements are met.
Owner:CHINESE PEOPLES LIBERATION ARMY UNIT 69245

Configurable firearm shell casing catching system

PendingUS20260002747A1Cartridge extractorsAmmunition loadingClassical mechanicsStructural engineering
A firearm shell casing catching system for collecting casings ejected from a firearm includes a mounting assembly, casing deflector, and a hopper. A shim can be optionally attached to the mounting assembly thereby decreasing the inside dimension of the mounting assembly to allow for the firearm shell casing catching system to be attached to magwells of firearms having different sizes.
Owner:MAGWELL MOUNTS LLC

Rotating head or rotating bolt for a handgun

PendingDE102024124698A1Cartridge extractorsBreech mechanisms
The present invention relates to a rotating head or rotating bolt lock (42) for a handgun (11), wherein the handgun (11) has a gun receiver (18) and the lock (42) comprises: - a breechblock carrier (12) which defines a longitudinal axis (L) and which is or can be slidably mounted along the longitudinal axis (L) in the weapon housing (18) and which rotates the breechblock head (42) to close the barrel via a control cam (13), - an extraction claw (28) which can be brought into positive engagement with a cartridge case (34), - a guide bore (22) arranged in the locking carrier (12) and running parallel to and spaced apart from the longitudinal axis (L), - an ejector pin (24) which is slidably mounted in the guide bore (22) along the same, and which has a projection (46) extending perpendicular to the longitudinal axis (L) which can interact with a stop (48) of the weapon housing (18), and - a guide opening (44) formed by the locking carrier (12), wherein the projection (46) penetrates the guide opening (44) and extends radially outwards beyond the locking head (12). Furthermore, the invention relates to a handgun (11) with such a breech (42).
Owner:GUZICKI GERD

REPEATING RIFLE

ActiveDE602021046461T2Cartridge extractorsBreech mechanisms
Owner:CARACAL INTERNATIONAL

A structure of a spring bottom hole and a processing method thereof

ActiveCN117029566BCartridge extractorsSpring forceCartridge
The application discloses a cartridge bottom pocket structure and a processing method thereof, and can improve cartridge stability. The cartridge bottom pocket structure comprises a body provided with a cartridge bottom pocket and a shell pulling hook. The cylindrical surface bottom of the cartridge bottom pocket is provided with a groove. The position of the groove is opposite to the position of the shell pulling hook. The groove is used for locally giving way to the cartridge shell bottom edge. The two ends of the groove and the cylindrical surface of the cartridge bottom pocket form two ridge lines. When the cartridge shell is separated from the cartridge chamber, the shell pulling hook is pushed to the groove direction under the spring force F1 of the shell pulling hook spring. The two ridge lines of the groove are in contact with the cartridge shell bottom edge, forming contact points A and B. The shell pulling hook and the cartridge shell bottom edge groove have a contact point C. The contact points A, B and C constitute three-point positioning.
Owner:CHONGQING JIANSHE IND GRP

Bolt carrier and bolt for gas operated firearms

PendingUS20260002746A1Cartridge extractorsFiring/trigger mechanismsMechanicsCartridge
An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearm's gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pin's annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end. The extractor recess is constructed so that the face of the bolt is round and the adjacent lugs fully supported. The extractor engages approximately 17% more of a seated ammunition cartridge's rim as compared to the prior art AR15 / M16 extractor. The result is an improved bolt and bolt carrier which provides for increased operational reliability.
Owner:LWRC INTERNATIONAL LLC

Ammunition blank and corresponding bolt

PendingUS20260063402A1Cartridge extractorsTraining ammunitionStructural engineeringMechanics
An ammunition cartridge casing has a casing base with a proximal end surface, a casing body defining an inside volume, and a distal end portion. The casing base defines a primer pocket in communication with the inside volume of the casing body, where the primer pocket is sized and configured such that when a primer is installed in the primer pocket, a proximal face of the primer is recessed into the base at least 0.010″ with respect to the end surface. Blank ammunition made with the cartridge casing is configured for use with a rifle having a bolt with a boss on the breech face that corresponds to the recessed primer.
Owner:SIG SAUER INC

Method and system for humanely dispatching wounded game

ActiveUS12495805B2Animal huntingCartridge extractorsSoftware engineeringMechanical engineering
A method, system, and apparatus for humanely dispatching wounded game in the field comprises a shank with a connecting end, a curved region, and a pointed end connected to a grip formed at the connecting end of the shank, and a finger loop. The grip can further comprise a series or flattened portions configured to engage the gaps in a choke tube in order to remove the choke tube.
Owner:MAESTAS DAVID

LOCKING HEAD OF A RIFLE LOCK AND RIFLE LOCK WITH SUCH A LOCKING HEAD

ActiveDE502024000838D1Cartridge extractorsBreech mechanismsRiflePhysics
Owner:L & O HUNTING GRP

Firearm with multi-part chamber locking assembly

PendingEP4649274A1Cartridge extractorsBreech mechanisms
Improvements in a firearm with a multi-part chamber locking assembly is disclosed to allow the casing ejection and reloading sequence to be temporarily slowed down to capture the optimum amount of ignited gun powders expanding gas, prior to the round exiting the barrel. Large slide component(s) of a firearm are replaced with a multi-part chamber locking assembly. This negates the requirement for a round to move laterally after moving vertically. The round only moves vertically thus mitigating the requirement for any forward motion. The multi-part chamber reduces the weight and materials needed to actuate all components of the ejecting and reloading process, so more energy is available to transfer movement of casing ejecting. The round is fired with a hammer or striker through impingement or a firing pin actuated action on a primer to ignite the propellant.
Owner:MAY JOSHUA