| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 042014000 |
Sliding breechblock
| 153 |
| 042490010 |
Magazines
| 121 |
| 042006000 |
Magazine guns
| 70 |
| 042008000 |
Breech hinged barrel
| 10 |
| 042040000 |
Upward-tilting breech
| 6 |
| 042007000 |
Grip magazine pistols
| 6 |
| 042390500 |
Movable chamber | 2 |
| 20090077852 | OVER RIDING CHAMBER IMPULSE AVERAGE WEAPON - A recoil-operated, impulse averaging, air-cooled, magazine-fed, automatic weapon. An operating group of the weapon includes a chamber, a bolt, a barrel extension and one or more toggles. The recoil action of the weapon from firing a first round drives the toggles in a motion constrained by a cam way. The toggles then drive the chamber in a linear reciprocating motion ejecting a first round and over-riding the next round. An impulse averaging system controls the speed of the recoil. | 03-26-2009 |
| 20160061543 | GAP SEAL FOR PROJECTILE LAUNCHING DEVICE - A projectile launching device includes a barrel with a bore through the barrel, and a breach end opposite of a muzzle end. A feed mechanism, with a chamber to hold a projectile, is positioned at the breach end of the barrel. The feed mechanism is moveable between a first position with the chamber and the barrel unaligned, and a second position with the chamber and the barrel aligned. A receiver is positioned on an opposite side of the feed mechanism from the barrel. The receiver includes a gas duct to convey gas into the chamber to fire the projectile. A sleeve is slidingly coupled to the receiver and is adapted to forcibly slide into a position in contact with the feed mechanism, in response to pressure from the gas conveyed through the gas duct, to seal a first gap between the receiver and the feed mechanism. | 03-03-2016 |
| 042009000 |
Faucet breechblock | 1 |
| 20140059910 | BOLT ASSEMBLY FOR FIREARMS - A bolt assembly for a firearm such as an auto-loading or pump action shotgun includes a bolt body, bolt carrier and a bolt head. The bolt head is received within the bolt body and is rotatable within the bolt body to lock the bolt assembly into battery prior to firing the weapon, but does not extend from the bolt body during such rotation. The bolt carrier translates axially relative to the bolt body so as to cause rotation of the bolt head. The extractor for the firearm can be pivotally attached to the bolt body, while the ejector further can be integrated into the bolt assembly for engaging and ejecting a shell or cartridge after firing. | 03-06-2014 |
| 042010000 |
Forward-sliding barrel | 1 |
| 20160377361 | COLLAPSIBLE PISTOL - A collapsible pistol features enhanced safety, ease of use, and improved performance as compared to prior designs. The pistol is easily reconfigured from an open, ready-to-fire position to a closed or collapsed position that makes the pistol quite compact, safe, and readily concealable. The overall design of the pistol is such that the manipulation of the pistol into and out of the open, ready-to-fire position can be accomplished with a user having relatively small hands and/or relatively low grip strength. | 12-29-2016 |
| 042026000 |
Swinging breechblock | 1 |
| 20170234632 | Firearm Breech System | 08-17-2017 |
| Entries |
| Document | Title | Date |
|---|
| 20090031605 | MULTI-CALIBER AMBIDEXTROUSLY CONTROLLABLE FIREARM - A multi-caliber ambidextrously controlled firearm that includes an adjustable ejection system to facilitate the ejection of spent cartridge casings from a firearm. The adjustable ejection system includes an ejection port defined by an aperture in the firearm and a deflector. The deflector is attached to the firearm to adjust the size of the ejection port and may be attached at one of at least two attachment positions of the firearm. The adjustable ejector system includes an ejector selectively attached to the firearm at one of at least two ejector attachment positions. The improved firearm also includes an ambidextrous magazine catch system for selectively retaining a magazine within a firearm. The magazine catch system includes a first button opposite a second button such that either button may be actuated by a user to release the magazine retained with the firearm. | 02-05-2009 |
| 20100212201 | Adaptive configuration for a firearm - A combination for a firearm which creates an improved firearm. An upper chassis is created which is formed from a first housing and a second housing which, once independently formed, are permanently secured to each other. The upper chassis provides a first opening through which a spent cartridge is discharged and a second opening which permits a variety of attachments to be selectively attached to the upper chassis to customize the firearm to the user and activity. | 08-26-2010 |
| 20110010976 | MANUFACTURING PROCESS OF A UNITARY BARREL, CHAMBER AND ACTION FOR A FIREARM - A unitary barrel, chamber and action assembly for a firearm is manufactured from a single piece of metal stock so as to precisely and consistently meet headspace requirements. A single piece of metal stock having a bore centerline is successively reamed based on a common datum to achieve precise headspace compliance. The unitary assembly is then profiled, again based on measurements from the datum, to provide a unitary barrel, chamber and action assembly without any form of juncture, headspace or harmonic limitations. | 01-20-2011 |
| 20120324774 | OBTURATOR FOR FIREARMS - An obturator ( | 12-27-2012 |
| 20130031819 | HANDHELD PAYLOAD LAUNCHER SYSTEM - This disclosure relates to launchers and launcher systems for discharging or launched payloads to downrange targets, and the methods of attenuating or offsetting recoil in such launcher systems. Examples of payloads that can be deployed with the disclosed launcher apparatus include chemical, biological, pyrotechnic, marker, tracer, signaling, non-lethal, explosive, smoke, and similar payloads. | 02-07-2013 |
| 20130061501 | Two-Piece Locking Block Device - A locking block device ( | 03-14-2013 |
| 20130160341 | PISTOL WITH BARREL LOCKING DEVICE - A pistol has a housing, a barrel slide, a barrel and a locking device for locking the barrel to the barrel slide. The locking device is formed by a head of the barrel, a locking block and a pair of locking bodies. The locking bodies engage the barrel slide by the action of the locking block and thus lock the barrel to the barrel slide. The locking block has two first wedge surfaces which are symmetrical about a longitudinal center plane. Each locking body is an elongated cylinder having a second wedge surface which faces the other locking body and interacts in a sheetlike manner with the first wedge surfaces of the locking block. Each locking body has an engagement surface which faces away from the other locking body and is intended for engaging respective recess of the barrel slide. | 06-27-2013 |
| 20130192113 | Firearm Charging Handle - A charging handle for a firearm includes a fixture and a lever mounted for pivotal movement to the charging handle. The fixture is pivoted to the charging handle for movement between a first, locked position, and a second, unlocked position. The lever is pivoted to the fixture for movement between first and second positions. In the first position of the lever and the first position of the fixture, the lever is stored proximate to the firearm in a low-profile arrangement. In the second position of the lever and the first position of the fixture, the lever is coupled to the fixture to move the fixture into the second position. In the second position of the lever and the second position of the fixture, the lever is deployed outward from the firearm and is available to be retracted backward so as to cycle the charging handle. | 08-01-2013 |
| 20140352187 | PISTOL WITH BARREL LOCKING DEVICE - A method of locking a barrel of a firearm with respect to a barrel slide is provided. The method including the steps of: movably mounting a barrel slide to a housing of the firearm; movably mounting a barrel to the barrel slide; movably mounting a pair of locking bodies in a transverse groove of a head of the barrel; and securing a locking block to the housing, wherein movement of the head of the barrel with respect to the locking block in a longitudinal direction causes the barrel to be locked to the barrel slide, wherein the pair of locking bodies engage recesses on the barrel slide when the barrel is locked to the barrel slide, wherein the locking block has two first wedge surfaces which are symmetrical about a longitudinal center plane and the locking bodies are elongated cylinders, the circumferential surface of which has two parallel planar guide surfaces resting in the transverse groove, a second wedge surface which faces the other locking body and interacts with the first wedge surfaces of the locking block, and an engagement surface which faces away from the other locking body in each case and is intended for engaging in the respective recess of the barrel slide when the barrel is locked to the barrel slide. | 12-04-2014 |
| 20150128467 | Forend for a Pump Action Firearm - A forend for use with a pump action firearm having a barrel with a magazine tube arranged adjacent and parallel thereto. The pump action firearm further includes an action slide assembly slidably receiving the magazine tube and the action slide assembly has a distal end and an action slide cap configured to engage the distal end of the action slide assembly. The forend comprises an elongate body having a U-shaped cross-section configured to be secured to the action slide assembly by an action slide cap engaged to a distal end of the action slide assembly. A guide defining a barrel receptacle is configured for keyed engagement to an interior of the elongate body to prevent rotational movement of the guide relative to the elongate body with the barrel receptacle facing toward the top of the U-shaped cross-section of the body. The barrel receptacle is configured to nest a radial portion of a barrel exterior, wherein the guide limits axial rotation of the forend about the magazine tube relative to the barrel. | 05-14-2015 |
| 20160025447 | STOCK ASSEMBLY AND RECOIL SYSTEM FOR A FIREARM - A stock and recoil system for a firearm includes a lower receiver, a bolt carrier, and a stock assembly. The bolt carrier is reciprocally movable along an axis within an upper receiver carried by the lower receiver and includes a tubular rearward end defining a cavity with a rearwardly directed opening. The stock assembly is coupled the lower receiver and includes a receiver extension coupled to the lower receiver and aligned on the axis. An action spring is carried within the receiver extension and extends therefrom into the tubular rearward end of the bolt carrier. The action spring is movable between a compressed configuration and an expanded configuration during the firing cycle of the firearm. A butt plate is adjustably coupled to the receiver extension and is movable between an extended position and a collapsed position. | 01-28-2016 |
