Class / Patent application number | Description | Number of patent applications / Date published |
089180000 | Breech block lock (positive or impositive) | 18 |
20090308240 | BREECH FOR A REPEATING RIFLE AND BARREL FOR SUCH A BREECH - The invention relates to a breech for a repeating rifle with a breech guide, a locking chamber arranged in the breech guide, and a locking sleeve that is arranged concentrically about a rear part of the locking chamber and that has several locking elements that can be moved by an expansion device between an inner unlocked position and an outer locked position for engaging in a locking groove of a barrel. The expansion device has, according to the invention, a support sleeve that can move in the axial direction between the rear of the locking chamber and the locking sleeve. | 12-17-2009 |
20100300278 | FIREARM WITH AN IMPROVED BREECH BOLT ASSEMBLY - A firearm with an improved breech bolt assembly comprises a barrel ( | 12-02-2010 |
20110239852 | SEMIAUTOMATIC OR FULLY AUTOMATIC FIREARM - Semiautomatic or fully automatic firearm, in particular in the form of a rifle or a pistol, containing a barrel whose rear barrel end is in the form of a cartridge chamber into which a projectile can in each case be inserted from the rear; a breech body which is arranged in a breech guide between the cartridge chamber and a rear wall such that it can move in the longitudinal direction between an open position, which releases the cartridge chamber in order to load a projectile, and a closed position which closes the cartridge chamber, wherein, in the closed position, the breech body closes the cartridge chamber at the rear and is used as an opposing bearing for the cartridge case; characterized in that at least one permanent magnet is provided such that, at least in the closed position and in the positions close to the closed position, its magnetic field forces the breech body to the closed position, such that the magnetic force of the at least one permanent magnet simulates a higher mass of the breech body, which acts as an opposing bearing during the firing of a projectile. | 10-06-2011 |
20140260944 | LOCK INTERFACE INSERT FOR MACHINE GUN BOLT ASSEMBLY - A bolt assembly for a machine gun according to an exemplary aspect of the present disclosure includes, among other things, a lock interface insert configured to be insertable into a bolt. The lock interface insert includes a main body defining a first engagement surface and a second engagement surface. At least one of the first and second engagement surfaces is configured to selectively engage a portion of a breech lock. | 09-18-2014 |
20160033217 | LOCK INTERFACE INSERT FOR MACHINE GUN BOLT ASSEMBLY - An insert for a gun bolt according to an example of the present disclosure includes, among other things, a gun lock interface insert sized to be fixedly secured in a gun bolt. The gun lock interface insert includes a first guide structure and a second guide structure extending from a main body. The main body defines a first engagement surface and a second engagement surface. The first engagement and second engagement surfaces space apart the first guide and second guide structures. Each of the first engagement and second engagement surfaces is configured to selectively engage a breech lock. A method of repairing a bolt assembly is also disclosed. | 02-04-2016 |
20160123685 | Bolt Carrier - A bolt carrier having a first gas port, wherein the first gas port provides fluid communication between an interior and an exterior of the bolt carrier; a second gas port, wherein the second gas port provides fluid communication between an interior and an exterior of the bolt carrier; and a third gas port, wherein the third gas port provides fluid communication between an interior and an exterior of the bolt carrier. | 05-05-2016 |
089181000 | With latch | 2 |
20090308241 | BREECH FOR A REPEATING RIFLE AND RECEIVER FOR SUCH A BREECH - The invention relates to a breech for a repeating rifle with a lock guide, a bolt head arranged in the lock guide, a locking sleeve arranged concentrically with the bolt head with several locking elements that can be moved by an expansion device between an inner unlocked position and an outer locked position, and a locking lever that is arranged in the lock guide and that can be activated by means of a bolt handle with which is associated a first cam element that is arranged so that it can rotate in the lock guide with a rear contact surface for support against a fixed control element. To allow especially smooth-running and safe locking action, a second cam element, which can rotate independently of the first cam element and that has a rear control cam for support against the fixed control element is associated with the locking lever. | 12-17-2009 |
20160252316 | AUTO-LOADING FIREARM | 09-01-2016 |
089182000 | Inertia member released lock | 2 |
089183000 | Blow back initiated | 2 |
20090101000 | BOLT HEAD LOCKING ARRANGEMENT FOR FIREARM WEAPONS - A bolt head locking arrangement for a recoil operated weapon where projectile is expelled by discharging a cartridge. The weapon comprising an action body, a barrel, and a bolt assembly, the bolt assembly being slidable within the action body. The bolt assembly comprising a bolt head, a locking slide and a firing pin, and a locking means arranged so that, upon loading a new cartridge for discharging, the locking means positively lock the bolt head such that, for a predetermined amount of time after the loaded cartridge is discharged, the locked bolt head stops the cartridge from retreating into the action body. The locking means is substantially in an in-line configuration with the bolt assembly. The locking means are arranged so that the recoil momentum of the weapon, caused by the discharge, is used for unlocking the bolt head, wherein the locking means are arranged so that, upon discharge of the cartridge, the locking slide recoils backwards and, once the bolt head is unlocked, the inertia of the locking slide facilitates the recoil of the bolt head. | 04-23-2009 |
20150369550 | CONCENTRIC CYLINDER GAS-OPERATED AUTOMATIC FIREARM - A fixed-barrel, gas-operated firearm having its barrel concentrically mounted within a pressure tube enclosing substantially all of the moving parts of the firearm's action. A gas cup reciprocates under the influence of propellant gas pressure when the firearm is fired, driving slide members that link the pressure cup to the firearm's bolt rearward within the pressure tube, unlocking the breech, rotating and retracting the bolt, discharging the spent cartridge casing and then advancing the bolt to chamber a new cartridge. | 12-24-2015 |
089184000 | Nonrectilinear breech block motion (e.g., tilting rotary, etc.) | 2 |
089185000 | Rotary and sliding | 2 |
20100319527 | CAM PIN WITH ROLLER FOR BOLT CARRIER - A bolt used in a self loading firearm employing a bolt carrier which in turn carries the bolt. The bolt includes a cam pin receptacle and a cam pin carried by the bolt. The cam pin includes a body having a received end and an exposed end. The received end is received in the cam pin receptacle with the exposed end extending outwardly from a surface of the bolt. A roller is rotatably coupled to the exposed end and rotatable around an axis of the body. | 12-23-2010 |
20130239795 | BUSHING ASSISTED CAM PIN - A cam pin system, includes a cam pin comprising a first cylindrical portion having a first length and a first diameter and a second cylindrical portion concentric with the first cylindrical portion and having a second diameter larger than the first diameter, the second cylindrical portion comprising a through-hole to accommodate the passage of a firing pin. The system includes an end plate detachably connected to the first cylindrical portion of the cam pin, a cylindrical bushing encircling the first cylindrical portion and having an outside diameter approximately equal to the second diameter and a bushing length approximately equal to the first length, and lubricant between the cylindrical bushing and the first cylindrical portion. The cam pin system is configured so that the cylindrical bushing can rotate freely about the first cylindrical portion. | 09-19-2013 |
089188000 | Rotary locking member | 3 |
20100005956 | Methods and apparatus for use in a locked machine gun - Methods and apparatus are disclosed for a locked machine gun that includes a casing, a barrel, a locking breech mechanism, an abutment and a quick change attachment. The locking breech mechanism has at least one locking body. The abutment holds the locking body or locking bodies of the locked breech mechanism. The quick-change attachment is used to facilitate the removal of the barrel and insertion and attachment of a new barrel. A first part of the abutment remains on the casing when the barrel is being changed, and a second part of the abutment is firmly connected to the barrel. The quick-change attachment is equipped to bring about a separation between the first part of the abutment remaining with the casing and the barrel with the second part. Also, the second part of the abutment has a curved section which controls the engagement of the breech mechanism in the abutment when the breech mechanism closes. | 01-14-2010 |
20100186581 | METHOD AND APPARATUS FOR AN ACTION SYSTEM FOR A FIREARM - A method and apparatus providing an action system for a semi-automatic shotgun including a receiver having an ejection port for expelling an empty cartridge of a fired projectile. The action system includes a bolt attached to a bolt carrier, wherein the bolt and the bolt carrier are movable within the receiver and substantially parallel to a longitudinal axis. A surface is attached to at least the bolt carrier or the receiver, and a roller is positioned rearward of the ejection port and proximate the surface, wherein a resistance is provided to rearward movement of at least the bolt or bolt carrier. | 07-29-2010 |
20120167755 | FIREARM FIRING MECHANISM - A semiautomatic firearm and firearm firing mechanism includes a bolt assembly having a bolt body coupled to a locking head for imparting a dwell in the sequence or process of bullet casing ejection, reloading, and re-cocking sequence during firing of the firearm. The locking head and bolt body rotate relative to one another as they translate longitudinally relative to one another, owing to corresponding engagement members. The locking head includes an additional engaging member for engagement with a corresponding engaging member along an inner surface of a fire control housing that houses the firing mechanism, so that the rotation and longitudinal translations of the locking head are performed in a controlled manner, which further controls the movement of the locking head and the bolt body relative to one another. A striker is released by a sear, which is coupled to a trigger, to initiate the firing and reloading/re-cocking sequence. | 07-05-2012 |
089190000 | Pivoted locking member | 3 |
20100031812 | DELAYED BLOWBACK FIREARMS WITH NOVEL MECHANISMS FOR CONTROL OF RECOIL AND MUZZLE CLIMB - The mechanism comprises a main frame ( | 02-11-2010 |
20130139677 | FIREARM WITH ENHANCED HANDLING BY DISSIPATING THE EFFECTS OF RECOIL AND MUZZLE CLIMB - A firearm having reduced recoil including a front slide connected to a rear slide by way of a slide link. Firing the firearm causes the rear slide to recoil and transfer energy, by means of the slide link, to the front slide. The front slide moving in the direction opposite the rear slide thereby reducing the recoil of the firearm. After reaching full recoil, the front and rear slides return to their resting positions. | 06-06-2013 |
20170234635 | FIREARM LOADING SYSTEM | 08-17-2017 |