Movable Chamber Patents (Class 89/33.03)
  • Patent number: 11781826
    Abstract: A holding device for munition bodies, having two holding shells which are movable relative to one another and which form a holding region in which a munition body can be held, wherein the holding shells are rotatable about a common axis of rotation, wherein the axis of rotation of the holding shells runs through the holding region. Moreover, the disclosure relates to a magazine having a holding device, to a projectile lift having a holding device, and to a method for holding munition bodies.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: October 10, 2023
    Assignee: KRAUSS-MAFFEI WEGMANN GMBH & CO. KG
    Inventors: Jens Grünewald, Eric Prummenbaum
  • Patent number: 11385005
    Abstract: A cooling rotor for a minigun that actively pulls gases and heat generated from firing the minigun comprises a front end with an axial opening; a rear end; a bore extending from the rear end to the axial opening in the front end; a plurality of longitudinally spaced, peripherally extending rotor segments; and one or more openings disposed between two or more of the plurality of longitudinally spaced, peripherally extending rotor segments whereby upon rotation of the cooling rotor gases and heat generated from firing the minigun are actively pulled through the one or more openings, the bore, and out the axial opening in the front end.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: July 12, 2022
    Assignee: TMP Weapons, LLC
    Inventor: Tracy Warren Garwood
  • Patent number: 10739092
    Abstract: A device for ejecting shells and/or connectors from at least one chain or strip of ammunition associated with a primary and/or secondary weapon, the device being mounted in an armored vehicle turret, includes: a plurality of geometrically and mechanically defined structural elements, for guiding, after shooting the ammunition, a movement of the shells and/or connectors from an inside toward an outside of the turret, along a determined path; and a vibration device for vibrating at least part of the structural elements to favor the movement of the shells and/or connectors. The structural elements include at least one chute. The vibration device includes a motor placed in any location of the chute. The motor includes an unbalancing mass. The motor is actuatable only during shooting.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: August 11, 2020
    Assignee: CMI DEFENCE S.A.
    Inventors: Innokenty Gritskevitch, Anthony Colomine
  • Patent number: 8839709
    Abstract: A rail mountable shotgun employs a bullpup configuration and a revolver type cylinder with a plurality of chambers. A trigger is connected through the cylinder to a firing mechanism contained in a housing behind the cylinder to fire a shotgun shell contained in the chamber when the chamber is aligned with the barrel of the shogun.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: September 23, 2014
    Assignee: Lineweight LLC
    Inventors: Caleb Clark Crye, Eric C. Burt
  • Patent number: 8359964
    Abstract: A weapon system uses caseless munitions. In order to permit a further use of the weapon system essentially without delay on jamming, a configuration of the weapon system is disclosed that has a weapon barrel, a projectile magazine with individual chambers and a propellant charge magazine with individual chambers. In order to guarantee a firing position, the projectile magazine and the propellant charge magazine, may be moved relative to the weapon barrel. The projectile magazine has a chamber located in a discharge position in which an ejector device for the projectile in the chamber may be activated. A further chamber of the projectile magazine may be loaded in the movement position for the projectile magazine and the propellant charge magazine has a chamber, located in a discharge position in which an ejector device for the propellant charge in the chamber may be activated. The further chamber of the propellant charge magazine may be loaded in the movement position of the propellant charge magazine.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: January 29, 2013
    Assignee: Diehl BGT Defence GmbH & Co. KG
    Inventor: Axel Pfersmann
  • Patent number: 8215225
    Abstract: An air, land, or sea vehicle may include a gun and a rotatable turret ring. An autoloader may be disposed in a basket fixed to the turret ring. The autoloader may include a turntable that rotates independently of the turret ring. An elevator having a track may rotate with the turntable. A carriage may be linearly translatable on the track of the elevator in directions toward and away from the plane of the turntable. A transfer device may be rotatably fixed to a pivot of the carriage. The transfer device may include a rail and a gripper that is linearly translatable on the rail.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: July 10, 2012
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Roy Zangrando, William Burgermeister
  • Publication number: 20110083548
    Abstract: A weapon system uses caseless munitions. In order to permit a further use of the weapon system essentially without delay on jamming, a configuration of the weapon system is disclosed that has a weapon barrel, a projectile magazine with individual chambers and a propellant charge magazine with individual chambers. In order to guarantee a firing position, the projectile magazine and the propellant charge magazine, may be moved relative to the weapon barrel. The projectile magazine has a chamber located in a discharge position in which an ejector device for the projectile in the chamber may be activated. A further chamber of the projectile magazine may be loaded in the movement position for the projectile magazine and the propellant charge magazine has a chamber, located in a discharge position in which an ejector device for the propellant charge in the chamber may be activated. The further chamber of the propellant charge magazine may be loaded in the movement position of the propellant charge magazine.
    Type: Application
    Filed: May 26, 2009
    Publication date: April 14, 2011
    Applicant: DIEHL BGT DEFENCE GMBH & CO. KG
    Inventor: Axel Pfersmann
  • Patent number: 7533598
    Abstract: A shell stripper assembly includes a shell stripper, a stripper guide, a stripper guide plate, and a magazine insert. The shell stripper strips the top round from the firearm magazine so that it can be picked up by the firearm breech bolt. The shell stripper slides between guide rails of the stripper guide, and its motion is controlled by the stripper guide plate.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: May 19, 2009
    Assignee: RA Brands, L.L.C.
    Inventor: Randall S. Murphy
  • Patent number: 7360478
    Abstract: A launcher which can be readily converted for use by either a right-handed or left-handed shot. The launcher has a receiver with upper and lower extensions extending forwardly from the receiver body. A barrel is pivotally mounted near forward portions of the extensions, in one of two positions, such that in one position it is pivotable from a home position aligned with the receiver and the extensions between the two extensions, to a load position with the breech of the barrel to the left, and such that in the other position it is pivotable from the home position, to a load position with the breech to the right. One way of accomplishing this is with a barrel support bracket to which the barrel is pivotally mounted, with the barrel support bracket being secured at or near the front of the receiver extensions, and being rotatable between two positions, each corresponding to a different swing direction for the barrel.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: April 22, 2008
    Assignee: Colt Canada Corporation
    Inventors: David Walter Compton, Stephen John Sajkowski, Gwyn Morgan
  • Patent number: 7137217
    Abstract: Automatic and semi-automatic firearms of remarkably reduced mass yet capable of long-range accuracy because of unique recoil reduction are characterized by (A) a temporary combination of a barrel, an integral breech and a separable chamber that in operation of the firearm is moved by a compressed spring distally before and while a chambered cartridge is fired, (B) run-out of such temporary operative combination diminishes firearm recoil, (C) recoil of the temporary operative combination recompresses the spring and (D) the separable chamber is loaded with a round while spatially separated from the breech and barrel.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: November 21, 2006
    Assignee: Knight's Armament Company
    Inventors: Douglas D. Olson, C. Reed Knight, Jr.
  • Patent number: 6898888
    Abstract: This invention provides two broad features. First, there is a firearm having a movable ramp (20) for receiving a cartridge (12a) stripped from a magazine (10) thereon. The ramp (20) is situated behind and below the firing chamber (28) and is movable between a tilted position, in which the ramp (20) guides the cartridge (12a) upward as it advances towards the chamber, and an elevated position, in which it supports the cartridge (12a) in alignment with the chamber (28). The firearm includes a slide-bolt assembly for advancing cartridges (12a) into the chamber, and the ramp (20) and the slide-bolt assembly engage each other such that the ramp (20) moves to the elevated position as the slide-bolt assembly moves towards the chamber (28). Second, there is a firearm adapted for a dual clip (116a, 118a) magazine (100) so that either of two different types of cartridges (102a, 10 4a) may be chosen for firing.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: May 31, 2005
    Inventor: Paul M. Greenhut
  • Patent number: 6729322
    Abstract: A compressed gas powered gun provides recoil simulating the recoil of a gun firing gunpowder propelled projectiles. The valve assembly provides both consistent shot to shot pressure, and rearward gas pressure for generating recoil. Preferred embodiments of the compressed gas powered gun may include a system for adjusting the amount of recoil provided. A trigger mechanism permitting semi-automatic operation, or full automatic operation at a user selectable cyclic rate, is provided. The air gun provides consistent gas pressure behind the projectile from shot to shot. A magazine and magazine indexing system for loading projectiles into the firing chamber in a manner contributing to the accuracy of the air gun is also provided.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: May 4, 2004
    Inventor: Mark Schavone
  • Patent number: 6637310
    Abstract: A rotatable breech gun including a breech assembly, a breech housing, and a gun barrel. The breech assembly has a breech bore formed therein that receives ammunition loaded through an end thereof. The breech housing has at least one side member oriented parallel to the breech bore. The breech assembly is rotatably mounted in the breech housing. The gun barrel has a gun bore extending therethrough. The gun barrel is operably connected to the breech housing such that the gun bore is aligned with the breech bore when the breech assembly is rotated in position within the breech housing. The breech assembly and the breech housing further include corresponding mating structures proximate at least one end of the breech bore such that forces generated by ignition of ammunition in the breech bore are transmitted to both the breech assembly and the at least one side member of the breech housing.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: October 28, 2003
    Assignee: United Defense L.P.
    Inventor: Dennis Borgwarth
  • Publication number: 20030159574
    Abstract: A rotatable breech gun including a breech assembly, a breech housing, and a gun barrel. The breech assembly has a breech bore formed therein that receives ammunition loaded through an end thereof. The breech housing has at least one side member oriented parallel to the breech bore. The breech assembly is rotatably mounted in the breech housing. The gun barrel has a gun bore extending therethrough. The gun barrel is operably connected to the breech housing such that the gun bore is aligned with the breech bore when the breech assembly is rotated in position within the breech housing. The breech assembly and the breech housing further include corresponding mating structures proximate at least one end of the breech bore such that forces generated by ignition of ammunition in the breech bore are transmitted to both the breech assembly and the at least one side member of the breech housing.
    Type: Application
    Filed: March 1, 2001
    Publication date: August 28, 2003
    Inventor: Dennis Borgwarth
  • Patent number: 6257115
    Abstract: A magazine and compact feed mechanism for firearms includes an end cap on the magazine to keep cartridges from falling out and a stop mechanism for preventing a rotating cartridge transfer disk from traveling beyond 90°. The magazine is placed in a horizontal position so that it is parallel to the barrel and includes an end cap that is shaped to prevent cartridges from inadvertently falling out of the magazine. A spring-loaded cover may also be added to the magazine for further protection. Cartridges from the magazine are delivered to a rotatable transfer disk by an injector arm driven by the recoil of the slide mechanism. A rotatable cartridge transfer disk is also driven by the recoil of the slide mechanism and functions to receive the cartridge from the horizontal magazine and rotate it 90° so as to present it properly to the breech mechanism so that it can be presented to the barrel.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: July 10, 2001
    Inventors: Walter Balsavage, Richard E. McKee
  • Patent number: 6243978
    Abstract: A device for controlling the feeder system of pump-action shotguns having a breech-block which is operatively associated, by virtue of two braces, with a cocking rod (3) moving between two stroke limit positions of the breech-block, a closed position and an open position. The rod motion actuates the feeding of a cartridge from a tubular magazine (5) to a rising block when the breech-block reaches the open position and from the rising block into the firing chamber of the barrel (7) when the breech-block returns to the closed position. The device includes a limiter (9) for limiting the opening stroke of the breech-block and for selectively preventing the breech-block from reaching the open stroke limit position.
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: June 12, 2001
    Assignee: Benelli Armi S.p.A.
    Inventors: Marco Vignaroli, Sergio Scaramucci
  • Patent number: 6234058
    Abstract: Semiautomatic pistol which is small enough to be carried in a pocket or otherwise concealed on the body of a person, and caseless ammunition for use in the pistol. The pistol has a grip adapted to be held in the hand of a shooter, a barrel extending in a forward direction from the grip, a closed chamber at the rear of the barrel, means for firing a caseless cartridge in the chamber with the entire cartridge being discharged through the barrel, and means responsive to the firing of the cartridge for opening the chamber and loading another cartridge into the chamber. The caseless cartridge consists of a hollow projectile filled with gunpowder, and a primer for igniting the powder. The primer is mounted directly to the projectile, and there is no casing or other material to ejected from the chamber before another round is loaded.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: May 22, 2001
    Inventor: Ralph Gordon Morgado