Sliding Locking Member Patents (Class 89/187.01)
  • Patent number: 11971233
    Abstract: A trigger unit for a firearm, including a trigger bar that lies below the trigger axis. A trigger lever has a rear which accommodates at least one disconnector. A sear, rotatable about a sear axis can be biased by means of a sear spring. The hammer axis, the trigger axis and the sear axis are arranged parallel to one another and parallel to a transverse direction. The trigger lever has a recess and the sear is at least partially arranged within. The sear axis and the trigger axis coincide. The sear limits rotation of a disconnector joint formed on the underside of the disconnector; the bearing encloses the disconnector joint at least partially.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: April 30, 2024
    Inventors: Andreas Werdnig, Andreas Wutte
  • Patent number: 11821704
    Abstract: A weapon system having a breechblock, wherein the breechblock can be mechanically connected to a drive of the weapon system. The weapon system comprises means which are designed in such a way that a mechanical separation occurs between the breechblock and the breechblock drive with the recoil of the recoiling masses of the weapon system. With the forward motion of the recoiling masses, the mechanical connection between the breechblock drive and the breechblock is re-formed.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: November 21, 2023
    Inventor: Klaus-Peter Eggert
  • Patent number: 11815324
    Abstract: A rifle has a fixed main body, including a barrel, a receiver with an upper opening, and a breech element. A trigger group is at least partially housed in the receiver, including a trigger and a hammer device operable by the trigger. A carriage assembly includes an assembly body and a shutter group at least partially housed in the assembly body. The carriage assembly is positioned on the receiver at the upper opening and is axially movable by a user between an advanced shooting configuration and a retracted rearming configuration. Upon axial movement of the carriage assembly, between the retracted and advanced configurations, the shutter group is first moved axially in translation and then in roto-translation. The shutter group includes a central body and a command pin protruding radially from the shutter body. The command pin engages the assembly body so reciprocal interaction guides the shutter group in rotation.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: November 14, 2023
    Inventors: Ulrich Zedrosser, Fausto Caravaggi, Emanuele Cecchel
  • Patent number: 11802745
    Abstract: In order to ensure that forces acting on a breech drive when unlocking the breech and pulling out a cartridge case are reduced or even eliminated, a breech of a weapon system is proposed which is formed at least by one breech carrier and one breech head and the breech carrier supports the breech head. The breech carrier and the breech head can be mechanically separated from one another. This separability is achieved in that a control case which has at least one control cam is inserted in the breech carrier. In addition, the breech head has a control bolt which engages in the control cam of the control case and can be guided in it. This measure ensures that the forces acting upon the recoil of the weapon cannot act on the breech drive.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: October 31, 2023
    Assignee: Rheinmetall Waffe Munition GmbH
    Inventor: Klaus-Peter Eggert
  • Patent number: 11619458
    Abstract: A pressure controlled inertia system for automatic fire weapons is provided. The system enabling a lock, especially in automatic rifles, to be opened by using a kinetic energy of a mechanism and a sliding handle block, wherein the kinetic energy is lost by hitting a case, after an empty cartridge is fired.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: April 4, 2023
    Inventor: Fatih Dere
  • Patent number: 11543195
    Abstract: A firearm operating system includes a forward bolt with an internal cavity, a carrier disposed on a rear side of the forward bolt where the carrier includes a cavity, a short cam pin, a plurality of bearings, a retracted configuration, and a deployed configuration. At least a portion of a forward section of the short cam pin is disposed within the internal cavity of the forward bolt. At least a portion of a rear section of the short cam pin is disposed within the cavity of the carrier. Movement from the retracted configuration to the deployed configuration includes movement in a forward/aft direction of the short cam pin relative to the forward bolt and movement of the plurality of bearings.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: January 3, 2023
    Inventors: James Matthew Underwood, Larry Cullen Underwood
  • Patent number: 11473866
    Abstract: The present disclosure provides systems and techniques for an electromechanical sear that is implementable in a gun. The gun may include a fire control manager, and the fire control manager may identify a trigger break based on a trigger sensor, transmit, based on the trigger break, a first signal to a first actuator located in a displacement path of a sear, so as to cause the first actuator to be displaced in a first direction, and transmit, based on the trigger break, a second signal to a second actuator located in the displacement path of the sear, so as to cause the second actuator to be displaced in a second direction. The transmitting the first signal to the first actuator and the transmitting the second signal to the second actuator may cause displacement of the sear and firing of the gun.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: October 18, 2022
    Assignee: Biofire Technologies Inc.
    Inventors: Kai Thorin Kloepfer, Donna Kelley, Sara Elizabeth Falcone, Katherine Joanne Lund, Jack Hugo Thiesen, Timothy Joel Thorson, Benjamin William Dwyer, Christopher James Owens, Joseph Ray Wilding, Karl Fredrick Brakora, John Andrew Tomasik
  • Patent number: 10145634
    Abstract: A captive recoil spring assembly includes a guide rod surrounded by a coil spring. The spring is captured between a base at one end of the guide rod, and a body at its opposite end. The body is shaped to engage the spring at one or more sectors, leaving one or more remaining sectors free to engage the slide. Use of such a body permits a round wire spring to be used without the need for close dimensional tolerances on the engaging parts.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: December 4, 2018
    Assignee: Smith & Wesson Corp.
    Inventor: Gary Zukowski
  • Patent number: 9534860
    Abstract: A gas-operated firearm with a lock housing, a guide rod projecting forward from the lock housing, as seen in the shooting direction, for a lock activation device, which is located so it can be displaced on the guide rod and which interacts with a lock for its movement between a locking position and an unlocking position, and a barrel with a gas withdrawal block fastened on the lock housing, which contains at least one gas withdrawal borehole that opens into the barrel, and a pressure piston that is guided so that it can be displaced in the gas withdrawal block for the displacement of the lock activation device against the force of a lock spring. A simplified installation and dismantling of the barrel can thus be made possible in that the barrel contains a rear part, which can be placed on the lock housing and can be firmly connected with it, and a front part, which freely projects from the lock housing, without a firm connection with the guide rod.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: January 3, 2017
    Assignee: L&O Hunting Group GmbH
    Inventor: Jan Leimer
  • Patent number: 8807010
    Abstract: A pistol has a housing, a barrel slide, a barrel and a locking device for locking the barrel to the barrel slide. The locking device is formed by a head of the barrel, a locking block and a pair of locking bodies. The locking bodies engage the barrel slide by the action of the locking block and thus lock the barrel to the barrel slide. The locking block has two first wedge surfaces which are symmetrical about a longitudinal center plane. Each locking body is an elongated cylinder having a second wedge surface which faces the other locking body and interacts in a sheetlike manner with the first wedge surfaces of the locking block. Each locking body has an engagement surface which faces away from the other locking body and is intended for engaging respective recess of the barrel slide.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: August 19, 2014
    Assignee: Merkel Jagd-und Sportwaffen GmbH
    Inventor: Wilhelm Bubits
  • Patent number: 8479635
    Abstract: A bolt catch assembly configured for operating with rimfire ammunition for use with a firearm including a receiver with an exposed receiving chamber. The assembly includes a bolt catch actuator housing supported in seating fashion relative to the receiving chamber and communicating with an attachable magazine. A catch actuator is supported in elevatable fashion relative to an end of the actuator housing. A bolt catch component and integrally formed actuator catch engaging portion is slaved to the catch actuator in order to be displaced in response to elevating motion exerted upon the catch actuator, such as by a follower component biasingly disposed within the magazine. The follower, in its uppermost displaced position within the attached magazine, engages a tab associated with the catch actuator which extends over a communicating interior of the bolt catch actuator housing in communicating alignment with the exposed receiving chamber.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: July 9, 2013
    Assignee: 22 Evolution LLC
    Inventors: John L. Overstreet, Jordan Bowles, Tyson Bradshaw, Craig Pudil
  • Patent number: 8281699
    Abstract: The invention comprises an improved recoil control device comprising a bolt head and an inertia block or slider for use in a variety of firearms. In one embodiment, the bolt head and inertia block are articulated so that the displacement of the bolt head results in a force component outside the firing axis of the barrel of the firearm. The device can be incorporated into firearms of a variety of sizes and configurations to produce recoil reduction and/or weight reduction advantages.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: October 9, 2012
    Assignee: Kriss Systems SA
    Inventors: Jan Henrik Jebsen, Renaud Kerbrat
  • Patent number: 8074391
    Abstract: A firearm formed by a housing, in which an assembly of a carriage and a barrel with a muzzle brake, and a breech block are slidingly supported, wherein the breech block is equipped with a return spring that is supported on a rear support surface of the housing, has a counter weight slidingly disposed in a longitudinal space located between the housing and the carriage and has a support surface which leans against a rear end of the return spring, the said counter weight being seated in its front position on a front stop surface of the carriage.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: December 13, 2011
    Inventor: Svatopluk Petrůj
  • Patent number: 7237469
    Abstract: Firearms having a locked breech are disclosed. An example firearm includes a barrel; a bolt head; a firing pin having a bulge; a bolt head carrier having a forward position and a rearward position; a central force receiving component receiving a rear end of the barrel and defining a plurality of recesses; and a locking bolt penetrating the bolt head. The locking bolt is movable between: (1) a locked position wherein the locking bolt engages in the recesses of the central force receiving component to thereby lock the bolt head to the central force receiving component and (2) an unlocked position wherein the bolt head is free to move with the bolt head carrier. The locking bolt is pressed by the bolt head carrier into the locked position when the bolt head carrier is in the distal position. The locking bolt defines an oblong hole which is penetrated by the firing pin.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: July 3, 2007
    Assignee: Heckler & Koch, GmbH
    Inventor: Johannes Murello
  • Patent number: 7000345
    Abstract: A shotgun comprises a receiver made from a first material; barrel having a portion extending into the receiver and made from a second material; a collar nut securing the barrel to the receiver; a bolt assembly disposed within the receiver and including a locking block configured to project into the barrel portion and lock the bolt assembly to the barrel prior to firing, the bolt assembly including a firing pin; and a trigger mechanism including a hammer for striking the firing pin.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: February 21, 2006
    Inventor: Ira M. Kay
  • Patent number: 6820533
    Abstract: An improved bolt action rifle. In its preferred embodiment, the improved bolt action rifle has at least one locking lug positioned within the bolt and having at its bottom a convex projection adapted to be inserted into a mating convex slot; a locking lug safety plunger located adjacent to a locking lug and adapted to prevent full insertion of the bolt without the presence of the locking lug; a bolt handle lock to lock the bolt in an upright position when the bolt handle is pulled rearward of the receiver; a bolt handle positioning detent to hold the bolt in a downward firing position when the rifle is in condition to be fired; a split receiver ring having two openings, one for permitting the ejection of a cartridge and the other for permitting the insertion of a new cartridge from the magazine; a bolt sleeve lock for locking together portions of the bolt; an ambidextrous magazine release; a magazine ejector; and an improved trigger mechanism based on the use of studs instead of pins.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: November 23, 2004
    Inventor: Dale Schuerman
  • Patent number: 6718680
    Abstract: A semiautomatic handgun having multiple safeties includes a body made in two halves and a slide which can move lengthwise on a pair of rails. The hammer is cocked by rearward movement of the slide. The trigger, which has purely translation motion, is blocked from behind except when the user is wearing a special magnetic ring on his trigger finger. A decocker mechanism pushes the firing pin forward and slides the sear back, and prevents release of the hammer until the firing pin is blocked. The firing pin is normally blocked by a cup, which prevents the firing pin from moving forward if the gun is dropped. The cup is moved to an inactive position by a release lever only when the trigger is pulled. A safety lock, which is preferably operated by a special tool, prevents the transfer bar from moving. The firing pin block lever is locked in a downward position when the safety is activated. A hammer block bar prevents the hammer from moving when the safety is on.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: April 13, 2004
    Inventors: Albert Roca, Ray Wilson
  • Patent number: 6622609
    Abstract: Disclosed is a breech mechanism with a non-rotating breechblock that is suitable for use with repeating firearms. The present invention is composed of relatively few moving parts, and each of the parts is itself simple, yet together they become an elegant solution to the problem providing a repeating firearm which minimizes damage the ballistic characteristics of the bullet as the bullet is inserted into the chamber of the firearm. The present invention, then, provides a repeating firearm substantially with the accuracy of a single shot manual loading firearm with a non-rotating breechblock.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: September 23, 2003
    Assignee: Spearfire Ltd.
    Inventor: Shai Barkan
  • Patent number: 6609319
    Abstract: New and improved bolt assemblies for M4/M16 firearms capable of firing a remarkably greater number of rounds than previously available M4/M16 firearms are, disclosed that have right and left compression springs that are parallel to each other, straddle the firing pin bore and are retained in partial bores that have proximal and distal ramps descending from their open ends. Additionally, these bolt assemblies advantageously (A) have the extractor pivot pin receiving lug is positioned at the longitudinal center of the mass of the extractor, (B) walls of bolt lugs on the firearm bolt are angled tangent to full radius fillets joining adjacent bolt lugs, (C) the extractor contains a ceramic ball and a captive rubber spring to bias such ball against the extractor pivot pin to retain it in the receiving lug and (D) lugs on the barrel extension are angled tangent to substantial radius fillets joining them.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: August 26, 2003
    Assignee: Knights Armament Company
    Inventor: Douglas D. Olson
  • Patent number: 6564491
    Abstract: An elastic sleeve having a longitudinal slit is positioned between a bolt head and bolt carrier. The sleeve is inserted into an annular space in the bolt carrier when the sleeve is radially compressed allowing relative movement between the bolt head and bolt carrier. The sleeve is supported between the bolt head and an end surface of the bolt carrier when the sleeve is expanded preventing relative movement between the bolt head and the bolt carrier. The periphery of the uncompressed elastic sleeve contacts the bolt carrier or bolt head to thereby effectively damp the elastic sleeve.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: May 20, 2003
    Assignee: Heckler & Koch GmbH
    Inventor: Johannes Murello
  • Patent number: 6418655
    Abstract: A shotgun comprises a receiver made from a first material; barrel having a portion extending into the receiver and made from a second material; a collar nut securing the barrel to the receiver; a bolt assembly disposed within the receiver and including a locking block configured to project into the barrel portion and lock the bolt assembly to the barrel prior to firing, the bolt assembly including a firing pin; and a trigger mechanism including a hammer for striking the firing pin.
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: July 16, 2002
    Inventor: Ira M. Kay
  • Patent number: 6318231
    Abstract: A barrel bushing for a semi-automatic pistol. The barrel bushing defines a bore for receiving a barrel therein for reciprocating movement during operation of the pistol. The improvement to the barrel bushing comprises first, second and third annular bearing surfaces formed on inner walls of the bore and against which the barrel moves during operation of the pistol. The first bearing surface contacts and supports the barrel during the recoil phase of operation, and defines a plane parallel to the longitudinal axis of the barrel during recoil. The second and third bearing surfaces reside in axially spaced-apart relation on opposite axially-extending sides of the first bearing surface and define respective planes with respect to the first bearing surface which are parallel to the longitudinal axis of the barrel during lockup and on which opposite upper and lower surfaces of the barrel are supported during lockup. A method of manufacturing the barrel bushing is also disclosed.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: November 20, 2001
    Inventor: Frederick H. Kart
  • Patent number: 6276256
    Abstract: Breechblock for barrel weapons, having a breechblock head which is guided in a breechblock guide and, by means of a control element which can be moved to and fro in a straight line and has control ramps, can be brought out of a loading position into a locking position, which is parallel to and axially displaced with respect to the loading position, inside a breechblock bearing, which breechblock head has supporting surfaces, which are associated in a form-locking manner with the control ramps of the control element, and at least one locking boss, which corresponds with a recess in the breechblock, for the purpose of locking in the locking position.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: August 21, 2001
    Assignee: Sommer + Ockenfus GmbH
    Inventor: Clemens Kimmig