Convertible Gun Operation (e.g., To Nonautomatic, Etc.) Patents (Class 89/128)
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Patent number: 11927407Abstract: A safety selector for a firearm, including a first lever including an integrally formed safety shaft and a first handle located outside the lower receiver for actuation, as well as a bearing portion, a selector portion and a connecting portion. To facilitate disassembly and interchangeability, the first lever is configured for spring-biased coupling to a securing element and has, on the connecting portion, a positioning protrusion projecting toward the opposite side of the weapon. In a longitudinal direction, the positioning protrusion has a shape-complementary bore for receiving a connecting assembly which includes a connecting element, a spring and a spring lock.Type: GrantFiled: December 14, 2021Date of Patent: March 12, 2024Assignee: GLOCK TECHNOLOGY GMBHInventors: Mario Kastrun, Patrick Nolte, Karl Markut
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Patent number: 11703294Abstract: A firearm is disclosed which advantageously allows for firing from two different magazines, one in a magazine well ahead of a trigger, and a second magazine held in a handle of a pistol grip of the firearm. This allows for both sub-machine gun and pistol firing configurations, allowing for increased firing capacity and allowing the firearm to continuously fire while reloading.Type: GrantFiled: March 21, 2022Date of Patent: July 18, 2023Inventors: Lemoy Titus, Patrick Stanley
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Patent number: 11662163Abstract: A bolt action AR rifle can be prepared using a standard AR lower assembly and coupling it to a bolt action upper assembly. The bolt action upper assembly has a bolt action receiver containing a bolt. The method of forming a bolt action AR rifle can include: providing the bolt action upper receiver assembly; providing the standard AR lower AR receiver assembly having a pivot pin and takedown pin; inserting the pivot pin into the pivot pin receiver hole; pivoting the bolt action upper receiver assembly at the pivot pin until the takedown pin is aligned with the takedown pin receiver hole; and inserting the takedown pin into the takedown pin receiver hole.Type: GrantFiled: March 25, 2022Date of Patent: May 30, 2023Assignee: UINTAH PRECISION LLCInventor: Richard Hamilton
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Patent number: 11566858Abstract: A device for converting a semiautomatic firearm to a non-semiautomatic firearm. The device includes a bolt stop lever pivotally attachable to a receiver of a firearm, a spring configured to be installed in contact with the bolt stop lever and a firearm receiver such that the spring exerts a force on the bolt stop lever to retain the bolt stop lever in a first position, and, a bolt release mechanism operatively coupleable to the bolt stop lever and configured to pivot the bolt stop lever against the force of the spring into a second position. The bolt release mechanism is operatively decoupled from the bolt stop lever when the bolt stop lever reaches the second position. When in the first position the bolt stop lever restricts motion of a bolt of the firearm, and when in the second position, the bolt stop lever permits motion of the firearm bolt.Type: GrantFiled: July 23, 2021Date of Patent: January 31, 2023Inventor: Aaron J. Carroll
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Patent number: 11454471Abstract: A fire control lockout assembly restricts a semiautomatic style firearm to single shot operation by requiring specific, sequential manual manipulation of the firearm by the operator prior to firing a subsequent round from the firearm. The lockout assembly has a modified safety selector and a modified disconnector and/or a modified trigger assembly that interrupts the usual automatic progression of the fire control group components after firing the firearm by increasing the upward distance the trigger sear must travel before contacting the disconnector. The increased distance prevents the hammer from automatically being released from the disconnector. The modified safety selector has a barrel that presses downward on the rearward end of the disconnector to release the hammer. After firing a round, the safety selector must be moved to its safe position and then to its fire position in order to fire a subsequent round from the firearm.Type: GrantFiled: July 23, 2021Date of Patent: September 27, 2022Assignee: Kunvirt Firearms Inc.Inventors: Earl Leonard Pittman, Paul Christian Dickie
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Patent number: 11313635Abstract: The present disclosure generally relates to a bolt catch device that prevents the bolt of a bolt carrier assembly of a firearm from moving to its forward position so as to prevent the firearm from being discharged until the user manually moves the bolt catch. The bolt catch is mechanically coupled to the selector of the firearm via a linkage, so that the bolt catch can be moved by way of the selector. This feature can prevent a self-loading firearm that otherwise could function on a semi-automatic basis from operating in such a manner.Type: GrantFiled: April 26, 2021Date of Patent: April 26, 2022Assignee: WHG PROPERTIES, LLCInventor: Frank E. Robinson
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Patent number: 11073349Abstract: A device for converting a semiautomatic firearm to a non-semiautomatic firearm. The device includes a bolt stop lever pivotally attachable to a receiver of a firearm, a spring configured to be installed in contact with the bolt stop lever and a firearm receiver such that the spring exerts a force on the bolt stop lever to retain the bolt stop lever in a first position, and, a bolt release mechanism operatively coupleable to the bolt stop lever and configured to pivot the bolt stop lever against the force of the spring into a second position. The bolt release mechanism is operatively decoupled from the bolt stop lever when the bolt stop lever reaches the second position. When in the first position the bolt stop lever restricts motion of a bolt of the firearm, and when in the second position, the bolt stop lever permits motion of the firearm bolt.Type: GrantFiled: August 2, 2019Date of Patent: July 27, 2021Inventor: Aaron J. Carroll
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Patent number: 10598454Abstract: A magazine adapter for use in a firearm includes a magazine adapter body configured to be bottom-fed and detachably received within a magazine well on the firearm. The magazine adapter body has a bottom panel, an upwardly extending first panel and an upwardly extending second panel defining a channel therebetween proportioned to slidably receive a magazine therein. The second panel defines a groove configured to engage a firearm magazine catch on the firearm when the magazine adapter body is received within the magazine well. The magazine adapter body may detach from the magazine well when the firearm magazine catch is actuated. The first panel includes an adapter magazine catch configured to releasably engage the magazine when the magazine is received within the magazine adapter channel. A magazine release is coupled to the adapter magazine catch. The adapter magazine catch disengages from the magazine when the magazine release is actuated.Type: GrantFiled: January 18, 2019Date of Patent: March 24, 2020Assignee: American Tactical, Inc.Inventors: Anthony DiChario, Roger Ellison Cribb, Richard Peck
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Patent number: 10557678Abstract: A bolt control device for causing the bolt of a firearm to be held in a retained position after each round is fired, the bolt control device capable of being manipulated by the user to also release and return the bolt to a firing position so that the firearm may be used to fire an additional round.Type: GrantFiled: June 16, 2017Date of Patent: February 11, 2020Inventor: Ronnie Barrett
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Patent number: 10508876Abstract: There is disclosed herein systems, methods and apparatus relating to a selective fire firearm. A firing mechanism is provided for mechanically and electronically firing a firearm depending on the operating mode selected by the user. A selector mechanism allows for selection of a safety mode of operation, a semi-automatic firing mode of operation, an automatic firing mode of operation, and an electronic firing mode of operation.Type: GrantFiled: July 10, 2018Date of Patent: December 17, 2019Inventor: Benjamin Alicea, Jr.
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Patent number: 10030928Abstract: There is disclosed herein systems, methods and apparatus relating to a selective fire firearm. A firing mechanism is provided for mechanically and electronically firing a firearm depending on the operating mode selected by the user. A selector mechanism allows for selection of a safety mode of operation, a semi-automatic firing mode of operation, an automatic firing mode of operation, and an electronic firing mode of operation.Type: GrantFiled: December 20, 2016Date of Patent: July 24, 2018Inventor: Benjamin Alicea, Jr.
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Patent number: 9810496Abstract: A semiautomatic firearm with redundant systems for reducing misfirings. A safety trigger is provided that is passively actuated in advance of a firing trigger. The safety trigger maintains redundant safety mechanisms that prevent inadvertent or accidental actuation of the firing trigger. The firing trigger can be configured for actuation with a very low magnitude or “soft” pull without compromising safety. For the disclosed embodiments, the safety trigger assures that the firearm is discharged only upon deliberate actuation of the firing trigger. In one embodiment, a trigger pull adjustment mechanism provides adjustment of the pull of the firing trigger to a desired force required by the operator. The disclosed trigger pull adjustment mechanism reduces the number of components and complexity of the machined parts over conventional trigger pull adjustment mechanisms.Type: GrantFiled: January 16, 2015Date of Patent: November 7, 2017Assignee: Savage Arms, Inc.Inventors: Ivan Kolev, John Linscott
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Patent number: 9777975Abstract: A semiautomatic firearm is presented that is a combination of known parts from the AR-15 style firearms and AK-47 style firearms and new parts. The firearm includes a receiver and a removable trunnion inserted into the receiver. A barrel is threaded and pinned into the trunnion and an adjustable gas block is connected to the barrel. The gas block includes a gas bore and an adjustable member that extends into and out of the gas bore thereby adjusting the amount of gases that travel through the gas block. The firearm also includes a foregrip installed over the barrel and gas block. The foregrip has a pattern of venting openings therein and an opening that provides access to the adjustable member of the gas block as well as a top rail and a bottom rail. The combination of these components provides a semiautomatic firearm that operates smoothly while being rugged and durable.Type: GrantFiled: June 10, 2015Date of Patent: October 3, 2017Assignee: CREATIVEARMS, LLCInventors: Robert Folkestad, II, Daniel Welch, Michael Six, Joel Fleming
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Patent number: 9733034Abstract: A trigger assembly improved, having a trigger assembly with first and second shroud side edges that define an angled face. The angled face tapers and is sufficiently wide to partially cover a trigger spring to reduce debris accumulation thereon. First and second housing sidewalls are countersunk and have at least one debris hole. A disconnector assembly has first and second disconnector side faces that define a spring well to house a disconnector spring. The disconnector assembly further has a disconnector shroud and disconnector shroud top face that are sufficiently wide to cover the spring well and the disconnector spring. A hammer assembly has first and second hammer spring mounts to secure a hammer spring. First, second, third and fourth hammer spring shrouds are sufficiently wide to partially cover the hammer spring. The hammer assembly further has first and second debris bevels that extend to first and second hammer sidewalls respectively.Type: GrantFiled: November 16, 2016Date of Patent: August 15, 2017Inventor: Arthur J. Viani
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Patent number: 9733031Abstract: Disclosed herein is an example including a firing mechanism for a firearm including a receiver having a cavity therein configured to accept a firing mechanism. The firing mechanism comprising a bolt guide rail fixed to the inner surface of the cavity of the receiver. The firing mechanism also comprises a bolt sliding along a longitudinal axis on the bolt guide rail. Also disclosed is a change handle rotatably mounted to the bolt so as to rotate relative thereto about a vertical axis orthogonal to the longitudinal axis. The charge handle may be mounted to the bolt so as to longitudinally reposition therewith. The charge handle having a surface defining a cut therein aligned with a slot in the bolt when the bolt is in a rearward position; and wherein the surface defining a cut in the charge handle is not aligned with the slot in the bolt when the bolt is in a forward position.Type: GrantFiled: July 7, 2016Date of Patent: August 15, 2017Assignee: Primary WeaponsInventors: Dean Sylvester, Derek Parker
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Patent number: 9702648Abstract: The present disclosure relates to kits and associated methods for converting a semi-automatic firearm into a bolt single action firearm, as well as the converted firearm itself. The kit includes a housing (e.g. upper receiver) that accommodates a bolt carrier and a charging handle and a carrier key, if desired. The housing has ends which mount to the existing lower receiver of the semi-automatic firearm to convert the semi-automatic firearm into a manual bolt-action firearm.Type: GrantFiled: March 7, 2016Date of Patent: July 11, 2017Inventor: Chris Pollack
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Patent number: 9651329Abstract: The invention relates to a trigger device for a semi-automatic handgun, including a locking element swivel-mounted around a first axis and acting on a trigger element via a locking face, and a shot limitation device, which has a control element with locking or control faces defining at least two locking positions for a pawl swivel-mounted around a second axis. To allow limited and precisely metered firing for rapid-fire sequences, it is provided that the control element is formed by a sear arranged in the path of action between a trigger and the trigger element, which acts on the trigger element through the locking element and the pawl swivel-mounted on the locking element around the second axis.Type: GrantFiled: September 9, 2015Date of Patent: May 16, 2017Inventor: Karl Hittmann
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Patent number: 9523550Abstract: A projectile launching device such as a paintball gun capable of firing a paintball using a hammer is disclosed. The paintball gun, in one embodiment, includes a bolt, a valve, and a hammer wherein the bolt has an air channel and is able to move within a bolt chamber. The valve, which is situated in a firing control chamber arranged in parallel to the bolt chamber, controls pressurized gas. The hammer, in one aspect, includes a pivot hole capable of hosting a pivot pin which facilitates a swing motion for the hammer. When the hammer swings around the pivot hole, the hammer contacts the valve whereby a portion of the pressurized gas is release. The bolt further includes a hammer reset element which is able to reset the hammer to a ready for firing position during a launch process.Type: GrantFiled: May 27, 2015Date of Patent: December 20, 2016Assignee: Real Action Paintball (RAP4), Inc.Inventor: Omar Alonso Macy
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Patent number: 9410759Abstract: A burst firing trigger mechanism is provided. The mechanism includes a sear having a hamper engagement surface and a transfer mechanism. The present invention further includes a plurality of triggers. The plurality of triggers each includes a lever, a base pivotally attached to the sear by a pivot pin, and a trip finger extending from the base. Each of the trip fingers extends at a different angle relative to the lever. The present invention further includes a hammer biased by a spring away from the sear. The hammer includes a cocking notch. The burst firing trigger mechanism includes a cocked position and a plurality of fired positions. The cocked position includes the hammer engagement surface engaging the cocking notch and suspending the hammer towards the sear.Type: GrantFiled: April 9, 2015Date of Patent: August 9, 2016Inventor: Michael S. Smith, Jr.
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Patent number: 9389035Abstract: A retrofit apparatus is disclosed for a gas-operated reloading firearm having a pressure control unit to operate the firearm in either manual or semi-automatic operation. The pressure control unit is coupled to the reloading unit to reduce a gas flow to the reloading unit in a first configuration and allow the gas flow to the reloading unit in a second configuration. A controller is coupled to the pressure control unit to operate the firearm in the first or second configuration. The firearm operates in a first configuration requiring manual operation until it receives continuous manual actuation to enable the reloading unit in a second configuration.Type: GrantFiled: October 1, 2014Date of Patent: July 12, 2016Inventor: Walter Parsadayan
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Patent number: 9372047Abstract: Pressurized air from an air pressure bottle creates the firing motive force for game firearms. After accumulating sufficient pressure, the pressurized air is channeled to the gun chamber to achieve a firing objective. Using an application system for single firing, a purely mechanical firing control device is formed as an integral body to achieve single firing and continuous firing, and which is simply fitted with an auxiliary component to assist in achieving continuous firing. The auxiliary component is located in the swinging path of a cocking trigger. The select continuous firing clasp is pushed upward by the trigger and supports a jumping bar, which causes the jumping bar to lose its clasping retaining capacity on a firing tube to achieve a continuous firing operation.Type: GrantFiled: November 25, 2014Date of Patent: June 21, 2016Inventor: Chao-Hsiung Cho
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Patent number: 9115952Abstract: Methods and systems are provided for modifying a firearm, including a kit for creating a modified handgun from first and second handguns. In one embodiment of the invention, a modified handgun is created which comprises a slide and barrel from a first handgun and a frame of a second handgun, using a kit comprising a dust cover insert, a replacement recoil spring and a replacement recoil spring guide.Type: GrantFiled: December 29, 2014Date of Patent: August 25, 2015Inventor: Matthew J. Cole
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Patent number: 9097474Abstract: A semiautomatic handgun includes various unique features to facilitate rapid, accurate shooting. Some examples of the handgun include a more compact recoil spring system, locating the recoil spring around the barrel while permitting rearward movement of the barrel in conjunction with the slide. Other examples include an automatic magazine release for releasing the magazine upon the discharge of the last cartridge in the magazine. Still other examples include a grooved or roughened top slide surface for facilitating slide manipulation with one hand. Further examples include auxiliary sight systems to facilitate determining the proper distance by which to lead a moving target. Other examples include a takedown tool stored within the handgun.Type: GrantFiled: April 24, 2013Date of Patent: August 4, 2015Assignee: CABOT INTELLECTUAL PROPERTY HOLDINGSInventors: Brian Zins, Robert Bianchin, Michael Hebor
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Patent number: 8985005Abstract: A mechanism for a repeating firearm has a body pivotably mounted within the receiver and movable between a first position where it blocks motion of the bolt carrier, and a second position where it engages either the trigger or the hammer to prevent discharge. In operation the body is moved from the first position to the second to release the bolt carrier, which moves into battery. The body is then allowed to move out of the second position toward the first position. The rife may be discharged by a pull of the trigger, and the bolt carrier moves out of battery and is arrested by the body before moving back to battery. If the body is maintained in the second position during operation its engagement with the trigger or hammer prevents discharge of the firearm.Type: GrantFiled: December 19, 2013Date of Patent: March 24, 2015Assignee: Smith & Wesson Corp.Inventors: Jason Dubois, David S. Findlay
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Patent number: 8826797Abstract: A modularized upper receiver including any number of replaceable panels applied to either the left or right side of the receiver for establishing varying combinations of forward assist and spent shell/gas deflection. The modifiable upper receiver is particularly suited to ambidextrous use and, in the further instance of forward assist notches added to an opposite side of the carrier, prevents the shooter from removing such as the right hand from the pistol grip in order to force feed rounds into the firing chamber.Type: GrantFiled: January 9, 2012Date of Patent: September 9, 2014Assignee: 22 Evolution LLCInventors: John L. Overstreet, Jordan Bowles
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Patent number: 8726560Abstract: The present invention teaches an insert locking mechanism incorporated into a sub caliber action device, installable within an upper receiver of an AR-15 type firearm, and which interfaces with an upper receiver mounted forward assist for use with such as .22 caliber ammunition and in order to eliminate movement or play of the chamber insert adaptor associated with the substituted sub caliber action. The mechanism includes a generally cylindrical shaped body supported upon the action and exhibiting a plurality of radially projecting and circumferentially extending lugs which are configured to mate and seat within a plurality of grooves circumferentially arrayed within a barrel defined in the upper receiver.Type: GrantFiled: March 23, 2011Date of Patent: May 20, 2014Assignee: 22 Evolution LLCInventors: John L. Overstreet, Charles C. Kelly, Jordan Bowles, Tyson Bradshaw, Craig Pudil, Taz B. Pfefer
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Patent number: 8459172Abstract: A trigger assembly for a trigger housing for a, M249 fully automatic rifle is provided having a switch accessible at the outside of the trigger housing for changing the firing of the rifle between semi-automatic and fully-automatic fire.Type: GrantFiled: February 8, 2011Date of Patent: June 11, 2013Assignee: Ohio Ordnance Works, Inc.Inventors: Robert I. Landies, Thomas M. Hardman, Daniel L. Albright, Joshua G. Hershberger
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Patent number: 8459171Abstract: A mount assembly for a semi-automatic firearm supports the weight of a firing unit (receiver, barrel and trigger) in a slide stand on or from a support structure so that a user does not have to bear any or at least a significant portion of the firearm's weight. Through a sliding interface, the firing unit is manually pushed by a user's thumb(s) to slide forward in the slide stand until a trigger actuator depresses the trigger. The trigger actuator may include a rod or a rest for a user's finger. Recoil energy from a discharged bullet pushes the firing unit rearwardly back to the starting position. The slide stand can include a convex or articulating base for variable aiming, or a fixed base for sharp-shooting.Type: GrantFiled: November 14, 2012Date of Patent: June 11, 2013Assignee: Slide Fire Solutions LPInventor: Jeremiah Cottle
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Patent number: 8453554Abstract: A trigger assembly for a trigger housing for a, M60 fully automatic rifle is provided having a switch accessible at the outside of the trigger housing for changing the firing of the rifle between semi-automatic and fully-automatic fire.Type: GrantFiled: February 8, 2011Date of Patent: June 4, 2013Assignee: Ohio Ordnance Works, Inc.Inventors: Robert I. Landies, Thomas M. Hardman, Daniel L. Albright, Joshua G. Hershberger
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Patent number: 8281698Abstract: An improved barrel and attachment system for rapid fire weapons having a quick release and replacement. Further the barrel is lighter than comparable barrels for the same purpose, and has a flash suppression system.Type: GrantFiled: January 15, 2010Date of Patent: October 9, 2012Inventor: Leroy E. Haywood
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Publication number: 20120204712Abstract: The dual action shotgun includes a receiver that has an auto-loading mechanism coupled to a magazine. The magazine extends outwardly from the receiver to facilitate sliding movement of an action arm thereon relative to the receiver. A manually operable foregrip also slidable along the magazine is positioned to manually operate the action arm to prepare a cartridge and the firing mechanism of the shotgun independent of the operation of the auto-loading mechanism.Type: ApplicationFiled: February 16, 2011Publication date: August 16, 2012Inventor: Jeremy Hauck
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Publication number: 20120144712Abstract: A weapon system for urban combat incorporating an automatic gun having a short recoil, a feed system with gun driven box magazines of different capacities, a detachable link-belt feed, spring buffered barrel and bolt recoil absorbing arrangement, and simplified fire control.Type: ApplicationFiled: January 29, 2009Publication date: June 14, 2012Inventor: Charles Edward Rostocil
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Publication number: 20120144992Abstract: A trigger assembly for a trigger housing for a, M249 fully automatic rifle is provided having a switch accessible at the outside of the trigger housing for changing the firing of the rifle between semi-automatic and fully-automatic fire.Type: ApplicationFiled: February 8, 2011Publication date: June 14, 2012Inventors: Robert I. Landies, Thomas M. Hardman, Daniel L. Albright, Joshua G. Hershberger
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Publication number: 20120144993Abstract: A trigger assembly for a trigger housing for a, M60 fully automatic rifle is provided having a switch accessible at the outside of the trigger housing for changing the firing of the rifle between semi-automatic and fully-automatic fire.Type: ApplicationFiled: February 8, 2011Publication date: June 14, 2012Inventors: Robert I. Landies, Thomas M. Hardman, Daniel L. Albright, Joshua G. Hershberger
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Patent number: 8176833Abstract: A firearm receiver with an extended bridge is created to prevent the fully automatic fire of an assault rifle. The extended bridge receiver has a narrowed magazine well for a single stack removable magazine, safety catch with one or more grooves on its lower left hand side, new sporting stock where grip part and butt-stock part form one unit and barrel extension permanently attached to the muzzle. The receiver can be configured with a rivet on the bridge in a location that prevents backward turning of the safety catch, where the modified safety catch has two positions (i.e. safe and fire), rather than the three positions consistent with a fully automatic firearm. In a second version, the extended bridge lacks a release lever groove. In yet another version, an inseparable, double stack magazine box is used.Type: GrantFiled: September 10, 2008Date of Patent: May 15, 2012Inventor: Tomas Quis
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Patent number: 8112928Abstract: A trigger system for a firearm has an enclosure having a bottom surface, a trigger pivoted at a first pivot axis within the enclosure, a firing hammer pivoted at a second pivot axis within the enclosure, the firing hammer spring-loaded to rotate clockwise to fire, the firing hammer having a first notch, a disconnector pivoted at the first pivot axis, the disconnector rocker having a hook for engaging the first notch in the firing hammer preventing firing while engaged, and a full auto rocker pivoted at a third pivot axis through the trigger, the full auto rocker having a first portion extending downward and forward from the third pivot axis and a second portion extending rearward from the third pivot axis, a part of the second portion overlying a contact point on the disconnector to the rear of the first pivot axis.Type: GrantFiled: March 27, 2009Date of Patent: February 14, 2012Inventor: Ronald William Keough
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Patent number: 8087343Abstract: A trigger assembly for a trigger housing for an M240 Assault Rifle is provided having a switch accessible at the outside of the trigger housing for changing the firing of the rifle between semi-automatic and fully-automatic fire.Type: GrantFiled: January 14, 2010Date of Patent: January 3, 2012Assignee: Ohio Ordnance Works, Inc.Inventors: Robert I. Landies, Thomas M. Hardman, Daniel L. Albright, Joshua G. Hershberger
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Publication number: 20110315002Abstract: A trigger system for a firearm has an enclosure having a bottom surface, a trigger pivoted at a first pivot axis within the enclosure, a firing hammer pivoted at a second pivot axis within the enclosure, the firing hammer spring-loaded to rotate clockwise to fire, the firing hammer having a first notch, a disconnector pivoted at the first pivot axis, the disconnector rocker having a hook for engaging the first notch in the firing hammer preventing firing while engaged, and a full auto rocker pivoted at a third pivot axis through the trigger, the full auto rocker having a first portion extending downward and forward from the third pivot axis and a second portion extending rearward from the third pivot axis, a part of the second portion overlying a contact point on the disconnector to the rear of the first pivot axis.Type: ApplicationFiled: March 27, 2009Publication date: December 29, 2011Inventor: Ronald William Keough
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Publication number: 20110265638Abstract: The present invention teaches an insert locking mechanism incorporated into a sub caliber action device, installable within an upper receiver of an AR-15 type firearm, and which interfaces with an upper receiver mounted forward assist for use with such as .22 caliber ammunition and in order to eliminate movement or play of the chamber insert adaptor associated with the substituted sub caliber action. The mechanism includes a generally cylindrical shaped body supported upon the action and exhibiting a plurality of radially projecting and circumferentially extending lugs which are configured to mate and seat within a plurality of grooves circumferentially arrayed within a barrel defined in the upper receiver.Type: ApplicationFiled: March 23, 2011Publication date: November 3, 2011Applicant: CMMG, INC.Inventors: John L. Overstreet, Charles C. Kelly, Jordan Bowles, Tyson Bradshaw, Craig Pudil, Taz Pfefer
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Publication number: 20110252957Abstract: A sub caliber action device installable within an upper receiver of an AR-15 type firearm which interfaces with an upper receiver mounted forward assist for use with such as .22 caliber ammunition. The device includes a generally elongated receiver plate exhibiting a generally lengthwise extending notched interior established between extending sides, with the notched interior seating a bolt and a forward assist adaptor in reciprocating fashion along the receiver plate between an end-most location and a forward secured chamber adaptor. The adaptor is reconfigurable to inertially and linearly displace a limited distance relative to the bolt support sleeve during full auto firing mode and which influences the bolt against the chamber adaptor during striking of the bolt supported firing pin by the hammer.Type: ApplicationFiled: March 23, 2011Publication date: October 20, 2011Applicant: CMMG, INC.Inventors: John L. Overstreet, Charles C. Kelly
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Publication number: 20110168008Abstract: A trigger assembly for a trigger housing for an M240 Assault Rifle is provided having a switch accessible at the outside of the trigger housing for changing the firing of the rifle between semi-automatic and fully-automatic fire.Type: ApplicationFiled: January 14, 2010Publication date: July 14, 2011Inventors: Robert I. Landies, Thomas M. Hardman, Daniel L Albright, Joshua G. Hershberger
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Publication number: 20110146484Abstract: A striking mechanism for the semi-automatic operation of a cartridge firing firearm includes a receiver, a barrel attached to the receiver and providing a breach, an op rod assembly, and a bolt adapted for reciprocating movement within the receiver and engagable with the breach of the barrel and the face of a cartridge chambered therein. The bolt carries a primary firing pin, and a bolt lock means is pivotally connected to the bolt for selectively locking the bolt within the receiver. A bolt link assembly is pivotally connected to the bolt lock means and to the op rod assembly. The bolt link assembly provides a bolt link transfer pin. An op rod transfer pin is carried by the op rod assembly and can engage the bolt link transfer pin.Type: ApplicationFiled: March 25, 2009Publication date: June 23, 2011Inventors: Robert I. Landies, Daniel L. Albright, Joshua G. Hershberger
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Patent number: 7950178Abstract: A striking mechanism for the semi-automatic operation of a cartridge firing firearm includes a receiver, a barrel attached to the receiver and providing a breach, an op rod assembly, and a bolt adapted for reciprocating movement within the receiver and engagable with the breach of the barrel and the face of a cartridge chambered therein. The bolt carries a primary firing pin, and a bolt lock means is pivotally connected to the bolt for selectively locking the bolt within the receiver. A bolt link assembly is pivotally connected to the bolt lock means and to the op rod assembly. The bolt link assembly provides a bolt link transfer pin. An op rod transfer pin is carried by the op rod assembly and can engage the bolt link transfer pin.Type: GrantFiled: March 25, 2009Date of Patent: May 31, 2011Assignee: Ohio Ordnance Works, Inc.Inventors: Robert I. Landies, Daniel L. Albright, Joshua G. Hershberger
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Publication number: 20110061523Abstract: A new and useful a semi bolt receiver assembly is provided, that configured for assembly with a rifle base that has a buttstock and pistol grip configured for semi automatic operation. The semi bolt receiver assembly includes a receiver, a bolt and carrier assembly, and a manually operable handle that is coupled with the bolt and carrier assembly in a manner that enables the bolt and carrier assembly to be manipulated by a shooter to charge the rifle (i) while the shooter is maintaining a shooting position and (ii) without removing the shooter's hand from the pistol grip. The semi bolt receiver assembly is particularly useful when configured for assembly with an AR-15 rifle base.Type: ApplicationFiled: September 14, 2010Publication date: March 17, 2011Inventor: Robert Tyler Webb
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Patent number: 7895933Abstract: A semi-automatic pistol is created by the modification of a fully automatic sub-machine gun Sa vz. 61. The semi-automatic pistol is constructed partly from original parts of the Sa vz. 61 sub-machine gun, i.e. barrel, receiver, trigger, trigger lever and pistol grip, partly from modified parts of Sa vz. 61 sub-machine gun, i.e. hammer, interrupter and bolt, and partly from newly manufactured parts, i.e. semi-automatic frame without a groove in the bridge for the release lever and openings in rear stop for retarder assembly and without rails for folding stock on the outside of the rear wall, and a new safety lever with holes and grooves in such a positions that only semi-automatic fire is possible in its forward position. Some parts of the Sa vz. 61 sub-machine gun are removed completely, i.e. original frame, original safety lever, release lever, folding stock and retarder group (bolt hook, weight, counterweight, spring).Type: GrantFiled: April 6, 2007Date of Patent: March 1, 2011Inventor: Tomas Quis
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Patent number: 7735409Abstract: A conversion kit and method for converting the RUGER® 10/22® semi-automatic .22 caliber rim fire rifle to shoot .17 HM 2 cartridges utilizes the original bolt in the receiver and replaces the bolt operating handle with increased weight to replace the original bolt handle along with a .17 caliber barrel to permit the modified rifle to safely fire, eject and reload the .17 caliber cartridges.Type: GrantFiled: June 26, 2007Date of Patent: June 15, 2010Assignee: Magnum Research, Inc.Inventor: James A. Tertin
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Patent number: 7676974Abstract: In an automatic rifle which has been converted for non-military purposes to be semi-automatic by the removal of parts that allow its automatic function, additional suppressing elements are provided to ensure that the interruptor remains depressed until the bolt carrier fully passes the striker catch before the striker catch is engaged by the interruptor. This prevents premature connection of the striker catch and the interruptor, which could prevent sufficient striker spring pressure so that the next round can be fired. In one embodiment the trigger mechanism is fitted with an additional suppressing element (10) formed as a side push plate 7 on the bridge (6) of bolt carrier (5).Type: GrantFiled: May 30, 2006Date of Patent: March 16, 2010Assignee: Tomas QuisInventor: Vladimir Zemanek
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Publication number: 20090000171Abstract: A firearm receiver with an extended bridge is created to prevent the fully automatic fire of an assault rifle. The extended bridge receiver has a narrowed magazine well for a single stack removable magazine, safety catch with one or more grooves on its lower left hand side, new sporting stock where grip part and butt-stock part form one unit and barrel extension permanently attached to the muzzle. The receiver can be configured with a rivet on the bridge in a location that prevents backward turning of the safety catch, where the modified safety catch has two positions (i.e. safe and fire), rather than the three positions consistent with a fully automatic firearm. In a second version, the extended bridge lacks a release lever groove. In yet another version, an inseparable, double stack magazine box is used.Type: ApplicationFiled: September 10, 2008Publication date: January 1, 2009Inventor: Tomas QUIS
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Patent number: 7451682Abstract: A semi-automatic sporting rifle is created by the modification of a fully automatic assault rifle Sa vz. 58. The semi-automatic rifle is constructed partly from original parts of the Sa vz. 58 assault rifle, i.e. bolt carrier, locking piece, striker, return mechanism, barrel, trigger, interrupter and left hand side striker catch, partly from modified parts of Sa vz. 58 assault rifle, i.e. bolt, trigger mechanism feather and safety catch and partly from newly manufactured parts, i.e. semi-automatic receiver with a narrowed magazine well for a single stack removable magazine with extended bridge, safety catch with one more groove on its lower left hand side, new sporting stock where grip part and butt-stock part form one unit and barrel extension permanently attached to the muzzle. Some parts of the Sa vz. 58 assault rifle are removed completely, i.e. muzzle thread protector, bayonet lug, original receiver, original stock, pistol grip, release lever, trigger lever and right hand side striker catch.Type: GrantFiled: January 3, 2008Date of Patent: November 18, 2008Inventor: Tomas Quis
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Patent number: 7373868Abstract: A semi-automatic sporting rifle is created by the modification of a fully automatic assault rifle Sa vz. 58. The semi-automatic rifle is constructed partly from original parts of the Sa vz. 58 assault rifle, i.e. bolt carrier, locking piece, striker, return mechanism, barrel, trigger, interrupter and left hand side striker catch, partly from modified parts of Sa vz. 58 assault rifle, i.e. bolt, trigger mechanism feather and safety catch and partly from newly manufactured parts, i.e. semi-automatic receiver with a narrowed magazine well for a single stack removable magazine with extended bridge, safety catch with one more groove on its lower left hand side, new sporting stock where grip part and butt-stock part form one unit and barrel extension permanently attached to the muzzle. Some parts of the Sa vz. 58 assault rifle are removed completely, i.e. muzzle thread protector, bayonet lug, original receiver, original stock, pistol grip, release, lever, trigger lever and right hand side striker catch.Type: GrantFiled: October 7, 2005Date of Patent: May 20, 2008Inventor: Tomas Quis