Magazine Patents (Class 42/17)
  • Patent number: 10345064
    Abstract: A rotary ammunition magazine cooperates with a bolt catch to hold the bolt of a firearm out of battery in an open position after the last round has been fired. A cam mounted on the rotor of the magazine actuates a movable body on the magazine housing as the cam rotates to feed ammunition to the action. The body moves to an extended position and engages a bolt catch pivotably mounted in the firearm receiver. The bolt catch is pivoted by the body into a position where it will engage the bolt and prevent it from returning to battery after the last round has been fired.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: July 9, 2019
    Assignee: Smith & Wesson Corp.
    Inventors: Mark C. Laney, Matteo V. Viviano
  • Patent number: 10088257
    Abstract: A self-loading shotgun includes a lock movable inside a lock housing between an open position and a closed position, a barrel, a magazine disposed below the barrel, a lock catch for holding the lock in the open position, and a feeder system for lifting a cartridge delivered from the magazine to the height of the barrel. The feeder system includes a feeder that swivels about a transverse axis and a magazine hatch that interacts with the lock catch. To allow the self-loading shotgun to be fully loaded even when the lock is open, the swivel movement of the feeder generated by the lock is controlled by a control element separate from the lock catch.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: October 2, 2018
    Assignee: L&O HUNTING GROUP GMBH
    Inventors: Sergej Popikov, Eugen Fester, Peter Wiedemann
  • Patent number: 9976825
    Abstract: A magazine for storing and feeding ammunition cartridges to a small arms weapon which comprises a casing, a floor plate, a follower, and a magazine spring inside the casing. The magazine spring may comprise a first end connected to the follower, a second end connected to the floor plate, and a plurality of coils. Each of the plurality of coils may include a first segment having a first radius, a second segment having a first length adjoining the first segment, a third segment having a second radius adjoining the second segment, the second radius being greater than the first radius, and a fourth segment having a second length adjoining the third segment, the second length being approximately equal to the first length.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: May 22, 2018
    Inventor: Sagi Faifer
  • Patent number: 9803940
    Abstract: A shell loading system for a firearm in one embodiment includes a barrel, receiver, reciprocating slide and bolt assembly, tubular magazine, carrier operable to receive and feed shells from the magazine into the action, a spring-biased carrier latch laterally moveable to engage the carrier, and a pawl pivotably mounted on the carrier. A carrier latch disconnect is also pivotably mounted to the carrier and operated by the pawl. The carrier latch disconnect and pawl are movable independently of each other in one embodiment. The carrier latch disconnect is operable to block the carrier latch from engaging the carrier in a first position. In a second position when activated by the pawl, the carrier latch disconnect releases the carrier latch to engage the carrier which is locked in a downward position to receive a shell from the magazine.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: October 31, 2017
    Inventor: Jason Pittman
  • Patent number: 9557125
    Abstract: A receiver for a firearm may include a linkage that integrates movement of left and right forward assists. The receiver may include a linkage connecting one or both of the forward assists to a bolt catch. The receiver may included both a connection between the left and right forward assists as well as a connection between one or both of the forward assists and the bolt catch. The receiver may include a linkage connecting the forward assist mechanism with the bolt catch mechanism such that actuation of the forward assist mechanism moves the bolt carrier and moves the bolt catch mechanism from the engaged position to the disengaged position.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: January 31, 2017
    Assignee: WIPH, LLC
    Inventors: Skylar J. Stewart, Thomas J. Ahey, IV, Michael H. Walther
  • Patent number: 9534861
    Abstract: A novel firearm is lightweight, compact, and the method of manufacture is easy. A single or dual tubular magazine positioned below the barrel of a firearm includes the novel use of an inverted U-shaped stamped receiver cover with a cavity for housing a loading and ejection port. The present invention advances the art of firearm manufacture by disclosing a tubular magazine and stamped sheet metal receiver cover that encloses the major parts of a firearm. The firearm is simple to manufacture, lightweight, approximately 25 to approximately 27 inches in length, and affords an ammunition capacity that is at least twice the capacity of a comparable firearm, such as the Remington® 870 shotgun.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: January 3, 2017
    Assignee: Kel-Tec CNC Industries, Inc.
    Inventor: George Kellgren
  • Patent number: 9482478
    Abstract: A non-detachable magazine lower receiver for a firearm includes a stock mount, a trigger well extending from the stock mount, and a magazine well. The trigger well is configured to receive a firing mechanism. The magazine well is configured to receive a magazine. A proximal wall of the magazine defines a retention opening that passes through a distal wall of the trigger well. The retention opening is configured to receive a magazine retention member for fixing a magazine recovered in the magazine well to the lower receiver.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: November 1, 2016
    Assignee: Dark Storm Industries, LLC
    Inventor: Edward J. Newman
  • Patent number: 9417019
    Abstract: An auto-loading firearm includes a bolt assembly that is both automatically operable and manually operable between a forward position closing the chamber of the firearm and a rearward position opening the chamber, and a fire control mechanism. The fire control mechanism comprises a trigger plate assembly operably located between the chamber and a magazine that is capable of housing one or more additional rounds of ammunition. The trigger plate assembly includes a latch release and a carrier that is operable to lift a round from the magazine to the chamber. The fire control mechanism further includes a feed latch that is operable to release of a round from the magazine onto the carrier when disengaged by the latch release. The trigger plate assembly and the feed latch are configurable to control the release of rounds of ammunition from the magazine during manual operation of the fire control.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: August 16, 2016
    Assignee: RA Brands, L.L.C.
    Inventor: Vincent Norton
  • Patent number: 9400148
    Abstract: A magazine assembly for a firearm in one embodiment includes an outer magazine housing configured for attachment to a firearm and a magazine removably insertable into the housing. The magazine includes an axially extending internal cavity configured to hold a plurality of ammunition shells in stacked end-to-end relationship. In one embodiment, the magazine has an elongated tubular body. A shell catch lever is slideably mounted on the magazine for linear and pivoting movement in one arrangement. The shell catch lever retains a shell in the magazine in a first lateral position and releases the shell from the magazine in a second lateral position. The shell catch lever operates to retain and release shells from the magazine when either removed from or positioned in the magazine housing for loading the firearm.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: July 26, 2016
    Inventors: Jason Pittman, Dwight Potter, Scott Warburton
  • Patent number: 9267749
    Abstract: A modular firearm magazine assembly that is adapted to accept a “plug” piece to restrict and reduce the number of cartridges that can be contained in a magazine housing. The assembly in one construction is comprised of a base plate retainer collar, base plate, resistance spring, and cartridge follower plate that attach to and mount inside a cartridge magazine housing. In alternative constructions, the base plate and cartridge follower plates are modified to provide plug pieces that cooperate to restrict and limit the maximum possible travel distance of the cartridge follower plate to reduce the cartridge storage capacity of the magazine and accommodate governmental regulations.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: February 23, 2016
    Inventor: Michael Dukart
  • Patent number: 9217615
    Abstract: Disclosed is a firearm assembly that includes a monolithic rail platform that includes an upper receiver, a barrel assembly received in the upper receiver, and a top rail integral with the monolithic rail platform that extends over a portion of the barrel assembly.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: December 22, 2015
    Assignee: KRL Holding Company, Inc.
    Inventors: Karl R. Lewis, James Arend Seabold Bargren, Jacob A. Schafer, Neal David Hohl
  • Patent number: 9121664
    Abstract: 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.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: September 1, 2015
    Assignee: Magpul Industries Corporation
    Inventors: Richard Fitzpatrick, Michael T. Mayberry, Brad Bennett, Thomas Ward, Chad McKonoly
  • Patent number: 9115951
    Abstract: A mechanism for selectively connecting a magazine tube to a receiver of a magazine fed shotgun. The mechanism permits the rapid attachment to or detachment from of the magazine tube to the receiver of the shotgun. The mechanism may be a connector threaded into the end of the magazine tube. A locking profile may be connected to the end of the connector and may provide an access path. A pin may be passed through the access path and the magazine tube may then be rotated to position the pin into the locking profile. The rotation may be less than one half of a rotation. A plug may be threaded into the receiver. The pin may be connected to the plug. A spring may be used to bias the magazine tube in a locked position. A protrusion and nut may prevent movement between the magazine tube and receiver.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: August 25, 2015
    Assignee: ADAPTIVE TACTICAL LLC
    Inventor: James K. Bentley
  • Publication number: 20150096213
    Abstract: A shell feeding system for a top loading shotgun in one embodiment includes a barrel, receiver, and a magazine. The magazine includes a cavity configured to receive a plurality of ammunition shells in stacked end-to-end relationship. The magazine is positioned above the barrel and extends forward from the receiver. Shell guide grooves are formed by internal surfaces in the receiver which engage and guide each shell in a feed pathway towards the lower part of the receiver for chambering. A portion of the guide grooves may be arcuately shaped to rotate and reposition the shell for loading by the bolt into the chamber. In one embodiment, the receiver and magazine may be formed as a unitary integral structure formed as either a single piece or in half sections coupled together.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 9, 2015
    Inventor: Dwight Potter
  • Patent number: 8915003
    Abstract: An ammunition compartment is located in the grip of a firearm's handle. The handle has a hinged door that opens to the compartment. The ammunition is mounted on a strip clip which slides into grooves in the inner walls of the compartment. The strip clip has a tab which extends outside the compartment when the door is open so that the ammunition can be quickly pulled from the compartment to load the firearm.
    Type: Grant
    Filed: September 15, 2012
    Date of Patent: December 23, 2014
    Inventors: Charles K. Heizer, Raymond B. Kohout
  • Publication number: 20140317983
    Abstract: Firearms include some components originally configured for use with centerfire cartridge ammunition, such as a lower portion, and other components configured for use with rimfire cartridges, such as an upper portion and magazine. The firearm is thus configured for firing rimfire cartridge ammunition, although some components of the firearm may be characterized as centerfire firearm components. Methods of fabricating firearms involve assembly of a rimfire upper portion with a centerfire lower portion. A magazine is provided that is configured to couple to the centerfire lower portion, and to feed rimfire cartridges from within the magazine into the rimfire upper portion. Methods of adapting a centerfire firearm for use with rimfire cartridges involve removal of a centerfire barrel and upper portion from a centerfire lower portion, and attachment of a second upper portion and a second barrel, each configured for use with rimfire cartridge ammunition, to the centerfire lower portion.
    Type: Application
    Filed: January 14, 2014
    Publication date: October 30, 2014
    Inventor: Michael D. Bush
  • Patent number: 8800422
    Abstract: 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.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 12, 2014
    Assignee: RA Brands, L.L.C.
    Inventors: Vincent Norton, Travis T. Baker
  • Patent number: 8745912
    Abstract: A magazine for a firearm may include a cavity that is shaped to prevent the tip of the bullets in the cartridges from contacting the magazine when the firearm recoils. The magazine may also be configured so that the cartridges in the magazine exit the cavity at least approximately in the center of the magazine. The magazine may be configured to include a biasing mechanism that pushes the cartridges upward in the cavity. The biasing mechanism may be configured to allow the magazine to be compact, simple, and reliable.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: June 10, 2014
    Assignee: Browning
    Inventor: Marcus A. Heath
  • Patent number: 8733007
    Abstract: A magazine assembly (10) for receiving and storing cartridges (28) for a firearm (1). At least one gate member (58, 60) is pivotally mounted at an open end of a monoblock (20) and has a first blocking member (58.1, 60.1) to inhibit feeding of an end cartridge from a feed port until the firearm (1) is cocked. The gate member (58, 60) further includes a second blocking member (58.4, 60.4) to prevent multiple cartridges (28) from feeding from the same feed port (20.3, 20.4) during a given cocking cycle. The gate member (58, 60) is operable to displace the first blocking member (58.1, 60.1) out of a cartridge feed path while placing a second blocking member (58.4, 60.4) in the feed path to of the next cartridge (28) to be fed. An interrupter (62) prevents cartridges (28) supplied by a plurality of feed ports (20.3, 20.4) from being fed simultaneously.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: May 27, 2014
    Inventor: Ted Hatfield
  • Patent number: 8683726
    Abstract: A novel fire control system for a bolt action firearm includes a firing pin sear located and controlled at one side of the forward end of the bolt. The sear configuration is optimum for rifles having a bullpup form. The location of the sear also provides clearance under the bolt for the bolt to be moved over a firearm magazine without interference with cartridges in the magazine.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: April 1, 2014
    Assignee: Good Time Outdoors, Inc.
    Inventor: Arthur Genton
  • Publication number: 20130326924
    Abstract: A modular firearm is disclosed. The firearm that can be configured to operate using ammunition of different calibers via interchangeability of only a few parts. The firearm includes a foldable butt stock assembly for quickly and easily converting the firearm from an extended operating configuration to a compact transport configuration, and vice-versa. Additionally, the firearm includes a modular hand guard assembly having multiple mounting platforms for accommodating a variety of different accessories.
    Type: Application
    Filed: August 15, 2013
    Publication date: December 12, 2013
    Applicant: RA Brands, L.L.C.
    Inventors: Michael Brent Jarboe, Gregory Phillip Baradat, Gregory A. Dennison
  • Publication number: 20130298436
    Abstract: Firearm comprising a receiver (2); a barrel (6) mounted with one end on the receiver (2); a breech (8) equipped with a loading lever (9) mounted, in a way so that it can slide, in the receiver (2); at least one return spring (15) to return the breech (8) to its closed position, characterised in that the return spring (15) is a tension spring of the ‘constant-force’ type that is mounted between the breech (8) and a fixed support (12) with respect to the receiver and the barrel.
    Type: Application
    Filed: May 2, 2013
    Publication date: November 14, 2013
    Applicant: BROWNING INTERNATIONAL, SOCIETE ANONYME
    Inventor: BROWNING INTERNATIONAL, SOCIETE ANONYME
  • Patent number: 8522468
    Abstract: A method and apparatus are disclosed for substituting a different forend assembly in a long gun (e.g., a shotgun) without the use of tools by a user in the field. Applicants' preferred apparatus for substituting a forend comprises: a modified forend carrier that is affixed to the long gun (e.g., the illustrated shotgun); a forend; and tool-less means for removably attaching the forend onto the carrier, or removing the forend off the carrier, without the use of tools, wherein the tool-less means comprises: (i) a tongue-and-groove arrangement in the forend and carrier, and (ii) a releasable lock contained, at least in part, in the carrier. This permits the forend to be swapped out.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: September 3, 2013
    Assignee: O.F. Mossberg & Sons, Inc.
    Inventors: Kevin A. Webber, Sean P. Toner, Joseph A. Hoell, Jr.
  • Patent number: 8484875
    Abstract: A magazine for a firearm may include a cavity that is shaped to prevent the tip of the bullets in the cartridges from contacting the magazine when the firearm recoils. The magazine may also be configured so that the cartridges in the magazine exit the cavity at least approximately in the center of the magazine. The magazine may be configured to include a biasing mechanism that pushes the cartridges upward in the cavity. The biasing mechanism may be configured to allow the magazine to be compact, simple, and reliable.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: July 16, 2013
    Assignee: Browning
    Inventor: Marcus A. Heath
  • Publication number: 20130014416
    Abstract: A firearm-magazine interface for replacing an existing firearm-magazine interface of many existing firearms such as assault rifles, namely AK series (AK74, AK47, etc.) provides a lock that holds open the bolt after a last round is fired from a magazine. The firearm-magazine interface also includes a single-button magazine eject. After firing the last round, a bolt-hold lock is urged upwardly in the path of the returning bolt and catches a face of the bolt, thereby locking the bolt open until the magazine is replaced with a replacement magazine, at which time a bolt-hold release paddle pulls the bolt-hold lock downwardly, releasing the bolt to chamber a first round from the replacement magazine.
    Type: Application
    Filed: July 15, 2011
    Publication date: January 17, 2013
    Inventor: Chase B. Sisgold
  • Patent number: 8312656
    Abstract: A shotgun includes an action that is capable of rapidly chambering a shotshell after the shotgun has run out of shotshells and is capable of allowing shotshells to be removed from the magazine without cycling the shotshells through the action.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: November 20, 2012
    Assignee: Browning
    Inventor: Marc Lesenfants
  • Patent number: 8234807
    Abstract: A high feed ramp for use in Colt 1911 style handguns including a feed ramp on the frame (receiver) for guiding bullets into the barrel of the gun; a boiler room (barrel breech) with a small chamfered around its entire inner circumference; and an integral relief rim extension on the upper edge of the feed ramp, such that the feed ramp is extended over the bottom edge of the chamfered boiler room; wherein when the handgun is fired the bullets easily enter into the barrel and do not jam or misfire.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: August 7, 2012
    Inventors: Antonino LaTorre, Antonio Fugazzotto
  • Patent number: 8156675
    Abstract: A magazine for a firearm may include a cavity that is shaped to prevent the tip of the bullets in the cartridges from contacting the magazine when the firearm recoils. The magazine may also be configured so that the cartridges in the magazine exit the cavity at least approximately in the center of the magazine. The magazine may be configured to include a biasing mechanism that pushes the cartridges upward in the cavity. The biasing mechanism may be configured to allow the magazine to be compact, simple, and reliable.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: April 17, 2012
    Assignee: Browning
    Inventor: Marcus A. Heath
  • Publication number: 20120047786
    Abstract: A modular firearm is disclosed. The firearm that can be configured to operate using ammunition of different calibers via interchangeability of only a few parts. The firearm includes a foldable butt stock assembly for quickly and easily converting the firearm from an extended operating configuration to a compact transport configuration, and vice-versa. Additionally, the firearm includes a modular hand guard assembly having multiple mounting platforms for accommodating a variety of different accessories.
    Type: Application
    Filed: July 16, 2011
    Publication date: March 1, 2012
    Inventors: Serge Dextraze, Sylvain Morin, Emmanuel St. Pierre, Christian Vallieres, Ghyslain Durand, Michael Brent Jarboe, Gregory Phillip Paradat, Gregory A. Dennison
  • Patent number: 8096074
    Abstract: A firearm including a barrel having a chamber and an integrally formed upper receiver having a passageway, an accessory rail extending the complete length of the upper receiver, and a guidance feature extending along the passageway. The firearm also includes an operating rod having an anti-bounce mechanism, a bolt that is rotated counter-clockwise to lock against the chamber, a bolt carrier having a safety extension disposed below the bolt that prevents a hammer from striking a firing pin until the bolt is locked against the chamber, a lower receiver, a recoil spring assembly, and a fire control group. The bolt includes a polymer spring that biases a sliding extractor against the base of a cartridge. The sliding extractor is disposed at an angle ranging from thirty degrees to fifteen degrees on the bolt face to provide a low ejection angle from the firearm.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: January 17, 2012
    Assignee: RMDI, L.L.C.
    Inventors: Alexander J. Robinson, Darin G. Nebeker, Jon C. Holway
  • Publication number: 20110308126
    Abstract: A shotgun includes an action that is capable of rapidly chambering a shotshell after the shotgun has run out of shotshells and is capable of allowing shotshells to be removed from the magazine without cycling the shotshells through the action.
    Type: Application
    Filed: August 26, 2011
    Publication date: December 22, 2011
    Applicant: BROWNING
    Inventor: Marc Lesenfants
  • Patent number: 8061255
    Abstract: A firearm comprising a frame, a barrel joined to the frame, and a cartridge magazine selectively joinable to the frame; at least one cartridge contained within the cartridge magazine with the cartridge having a casing and at least one projectile, the casing having a cartridge case flange at one end and a mouth on the opposite end; and mechanism for lifting in selective communication with the cartridge and the barrel, with the mechanism for lifting having a ramp that is located adjacent to the end of the cartridge at the cartridge case flange, where the ramp acts selectively on the flange and casing; an extractor rib and barrel rib cooperating to keep extractor locked during cartridge ignition and unlocked substantially after ignition.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: November 22, 2011
    Inventor: Arne Bengt Boberg
  • Publication number: 20110005383
    Abstract: Embodiments of the present invention relate generally to cartridges and modifications for an M16/AR15 rifle. In one embodiment, a modified M16/AR15 rifle or carbine includes a bolt having a maximum outside diameter greater than that of a standard M16/AR15 bolt; and a bolt extractor pivoted to the bolt. The bolt and the bolt extractor are operable to: transport a cartridge from a magazine to a barrel, and eject a spent cartridge from the barrel. The rifle or carbine further includes a barrel extension configured to receive the bolt; a standard M16/AR15 upper receiver coupled to the barrel extension; a standard M16/AR15 lower receiver coupled to the upper receiver.
    Type: Application
    Filed: February 13, 2009
    Publication date: January 13, 2011
    Inventor: Lawrence S. Kramer
  • Publication number: 20100275486
    Abstract: A shotgun includes an action that is capable of rapidly chambering a shotshell after the shotgun has run out of shotshells and is capable of allowing shotshells to be removed from the magazine without cycling the shotshells through the action.
    Type: Application
    Filed: September 23, 2008
    Publication date: November 4, 2010
    Applicant: Browning
    Inventor: Marc Lesenfants
  • Patent number: 7806036
    Abstract: A magazine for introducing a plurality of ammunition cartridges into a firearm is disclosed. Particularly, a magazine may include a first rotor configured for rotating about a first center of rotation and a second rotor configured for rotating about a second center of rotation, wherein a position of the first rotor and a position of the second rotor are fixed with respect to one another. Further, operation of the first and second rotor may cause at least one ammunition cartridge of a plurality of ammunition cartridges that are movable by the first and second rotor to move along a serpentine path. Firearm systems including such a magazine are also disclosed. Another aspect of the present invention relates to a method of introducing an ammunition cartridge into a firearm. More specifically, an ammunition cartridge may be moved along a selected serpentine path prior to introducing the ammunition cartridge into a firearm.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: October 5, 2010
    Assignee: Browning
    Inventors: Ryan D. Cook, Dwight M. Potter
  • Patent number: 7779571
    Abstract: The present invention can have an adjustable length adapter that attaches to the firearm, and in one embodiment directly to an existing load tube. A mounting assembly and an indexing assembly are further provided. The mounting assembly has a mounting plate with an alignment hole for allowing a shell to pass there through from an aligned tube and into the adapter. The indexing assembly indexes relative the mounting assembly to successively align one of a plurality of tubes with the alignment hole. As one tube fills, the invention can be rotated to index the next tube and tension a rotator that can be positioned generally parallel to the firearm barrel. This process can be repeated until all four tubes are full. Upon emptying of a tube, a pin can be automatically activated to allow the indexing assembly to rotate relative the mounting assembly to align the next successive tube.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: August 24, 2010
    Inventor: Mark Roth
  • Patent number: 7676973
    Abstract: A method of loading individual caseless cartridges sequentially into a firearm firing chamber by the expansive force of a small detonation in the magazine focused locally on the current top cartridge in a magazine without damaging remaining cartridges. Small individual propelling charges containing an igniter microchip located in the magazine behind each cartridge provides the loading thrust. More energetic charges containing igniter microchips are imbedded in the cartridges to fire the cartridge in the firing chamber at will.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: March 16, 2010
    Inventor: James M. Powers
  • Patent number: 7661219
    Abstract: An ambidextrous bolt catch device, apparatus, system and methods for using are provided. Four main components include a bolt catch finger, lever system and plunger rod assembly with torsion spring. The lever system includes a right release lever and a left release lever; the left lever is an integral part of the bolt catch finger. The plunger rod assembly abuts and connects the right and left levers; a torsion spring on the rod creates tension causing rotation of the bolt catch finger in a downward or upward position. In an upward position, the bolt catch finger engages the bolt, retains the bolt in a rearward position, and signals the operator that the magazine is empty. The bolt engaged by the finger is held rearward in a safe, reliable manner to allow an unobstructed view of the firearm chamber until manually released using either the right or left release lever.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: February 16, 2010
    Assignee: Knights Armament Company
    Inventors: C. Reed Knight, Jr., Matthew A Callaghan
  • 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
  • Publication number: 20080120886
    Abstract: A lever action firearm comprising a receiver for receiving cartridges, a barrel having one end operably attached to the receiver, a magazine tube having one end operably attached to the receiver, a magazine follower positioned within the magazine tube and having a indentation for interacting with a portion of an ejector lever, and an ejector lever pivotally attached to the receiver and having an elongated forward finger for interacting with the edge of the indentation of the magazine follower.
    Type: Application
    Filed: August 31, 2006
    Publication date: May 29, 2008
    Inventor: Martin Ahlman
  • Patent number: 7269918
    Abstract: A pump gun is disclosed having a loading and firing mechanism which comprises a cartridge stop lever (21), that is not connected to the hammer, interacts with the cocking slide (22) associated with the cartridge magazine and is susceptible to rocking movements on an intermediate pin (30) between an operating interception position of a first cartridge in the magazine, when the cocking slide is in a retracted work position, and an idle release position of the same cartridge from the magazine tube, when the cocking slide is in the forward rest position.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: September 18, 2007
    Assignee: A. Uberti S.p.A.
    Inventor: Giacomo Merlino
  • Patent number: 6912806
    Abstract: The invention relates to a device for feeding cartridges (15) from magazines to small arms, in particular to rifles with a cartridge feed device (3-7, 25-29), which transports the cartridges from a tubular magazine (11) to the barrel (1) by means of a device, in particular a rocker/spoon (3, 25-29). Said device comprises a breech, which receives the cartridges from the cartridge feed device, slides them into the barrel and closes the latter. The rocker/spoon of the cartridge feed device can be removed from the intermediate chamber between the tubular magazine and the lock (13) and an interchangeable cartridge magazine (16) can be inserted in the empty intermediate chamber (21). In a first embodiment, the rocker (3) can be displaced from a front position into a rear position. In a second embodiment, the rocker (3) can be pivoted from an upper, approximately horizontal position into a lower, approximately perpendicular position.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: July 5, 2005
    Inventor: Lars Malindretos
  • Patent number: 6742298
    Abstract: A carrier lock for use in semi-automatic firearms.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: June 1, 2004
    Assignee: RA Brands, LLC
    Inventors: Bradley Phillip Howard, Edward Donald Schoppman
  • Publication number: 20040025393
    Abstract: A firearm is provided with a weapon operating system for firing large cartridges. The firearm may be a shoulder-fired, multi-shot, semiautomatic grenade launcher for firing grenade cartridges. The grenade launcher includes a magazine with a receptacle that holds one or more cartridges, a barrel, and a receiver coupled between the magazine and the barrel. The receiver includes a lightweight weapon operating system. Springs may be provided between the receiver and the magazine to isolate the receiver and barrel from the mass of cartridges in the magazine and the mounting resistance. A vernier feed system is disclosed for disengaging stacked cartridges in a tubular magazine from one another. A lifter based cartridge feed system is disclosed for magazine round control and/or chambering. A dwell is disclosed for retarding the breech lever after it has applied power to the accelerator lever during opening.
    Type: Application
    Filed: July 15, 2003
    Publication date: February 12, 2004
    Inventor: George L. Reynolds
  • Publication number: 20030221350
    Abstract: A loading device for kinetic operation automatic or semi-automatic rifles (11), comprising, housed inside a housing (23), a breechblock (24) of a barrel (25) of the rifle (11), the breechblock (24) being functionally associated with a feeder mechanism (22) by mean of a loading kinematism, wherein the feeder mechanism (22) supports at least one element (30), suitable for accumulating part of the recoil inertia energy of the rifle (11) transferring it onto an elastic element (15), which determines the loading of the firearm.
    Type: Application
    Filed: February 28, 2003
    Publication date: December 4, 2003
    Inventor: Giuseppe Pescini
  • Publication number: 20030167672
    Abstract: The invention relates to a device for feeding cartridges (15) from magazines to small arms, in particular to rifles with a cartridge feed device (3-7, 25-29), which transports the cartridges from a tubular magazine (11) to the barrel (1) by means of a device, in particular a rocker/spoon (3, 25-29). Said device comprises a breech, which receives the cartridges from the cartridge feed device, slides them into the barrel and closes the latter. The rocker/spoon of the cartridge feed device can be removed from the intermediate chamber between the tubular magazine and the lock (13) and an interchangeable cartridge magazine (16) can be inserted in the empty intermediate chamber (21). In a first embodiment, the rocker (3) can be displaced from a front position into a rear position. In a second embodiment, the rocker (3) can be pivoted from an upper, approximately horizontal position into a lower, approximately perpendicular position.
    Type: Application
    Filed: February 20, 2003
    Publication date: September 11, 2003
    Inventor: Lars Makindretos
  • Patent number: 6612062
    Abstract: A carrier lock for use in semi-automatic firearms.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: September 2, 2003
    Assignee: R.A. Brands, L.L.C.
    Inventors: Bradley Phillip Howard, Edward Donald Schoppman
  • Patent number: 6591535
    Abstract: A firearm is provided with a weapon operating system for firing large cartridges. The firearm may be a shoulder-fired, multi-shot, semiautomatic grenade launcher for firing grenade cartridges. The grenade launcher includes a magazine with a receptacle that holds one or more cartridges, a barrel, and a receiver coupled between the magazine and the barrel. The receiver includes a lightweight weapon operating system. Springs may be provided between the receiver and the magazine to isolate the receiver and barrel from the mass of cartridges in the magazine and the mounting resistance. A vernier feed system is disclosed for disengaging stacked cartridges in a tubular magazine from one another. A lifter based cartridge feed system is disclosed for magazine round control and/or chambering. A dwell is disclosed for retarding the breech lever after it has applied power to the accelerator lever during opening.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: July 15, 2003
    Assignee: Armalite, Inc.
    Inventor: George L. Reynolds
  • Patent number: 6550173
    Abstract: A semiautomatic rifle (10) with inertial operation comprises an arming unit (11) and an inertial-loading device (12), where the arming unit (11) has a breechblock (13), there being housed inside the breechblock (13) a firing pin (18), and further has a cocking lever (21) equipped with a corresponding spring (22) and with a kinetic mass (23), as well as with a magazine follower (24) designed to transfer the cartridges (20) supplied by the magazine box (25) of the inertial-loading device (12) to the arming unit (11). The arming unit (11) is functionally associated with the inertial-loading device (12) for loading the cartridges (20) in such a way that it is possible to exploit the inertia associated to the recoil of the rifle when the rifle is fired, both for operation of the arming unit (11) and for feed of the cartridges (20) from the magazine box (25) to the cartridge chamber.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: April 22, 2003
    Assignee: Fabram S.p.A. Fabbrica Bresciana Armi
    Inventor: Giuseppe Pescini
  • Patent number: 6510778
    Abstract: The present invention relates to an automatic bolt hold-open rotating assembly to convert a manual bolt hold-open function to an automatic bolt hold-open function in automatic and semi-automatic pistols and rifles, such as the Ruger 10/22 semi-automatic .22 caliber rifle. The components of the assembly readily replace standard factory components in the trigger assembly and replace the standard magazine. The assembly comprises a magazine with channel cutout, a bolt stop, a bolt stop handle for manual manipulation of the assembly, a bolt stop spring to apply clockwise pressure on assembly, a cartridge detecting lever which also serves as a cartridge ejector pivotably mounted on bolt stop with an extension which interfaces with channel cutout of magazine, a tab protruding from the ejector lever which rides in a slot on the bolt stop to limit pivoting of the cartridge detecting lever, and a lever spring allowing counter-clockwise pivoting of cartridge detecting lever to facilitate insertion of recharged magazine.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: January 28, 2003
    Assignee: Custom Shooting Technologies, Inc.
    Inventor: Michael B. Irwin