With Means For Disconnecting Trigger And Sear Patents (Class 89/144)
  • Patent number: 10895424
    Abstract: A firearm action has a receiver defining a bolt passage and having a latch engagement facility, a bolt assembly including a bolt body received in the passage and operable to reciprocate between a forward battery position and a rear open position, the bolt assembly including a bolt handle movable with respect to the body between a handle forward position and a handle rearward position, the bolt assembly including a bolt latch body having a latch element, the bolt latch body movable between a locked condition in which the latch element engages the latch engagement facility when the bolt assembly is in the forward position and the bolt handle is in the forward position to prevent reciprocation of the bolt, and an unlocked position in which the latch element is disengaged from the latch engagement facility to enable reciprocation of the bolt.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: January 19, 2021
    Assignee: SAEILO ENTERPRISES, INC.
    Inventor: James A. Tertin
  • Patent number: 10401107
    Abstract: A trigger mechanism according to various aspects of the present technology is configured to provide a more effective method of securing a hammer after a firearm is fired. Various embodiments of the trigger mechanism comprise a main sear and a sear link that are used to mechanically link a trigger body to the hammer. The main sear maintains engagement with the hammer throughout an actuation cycle and is configured to catch the hammer as it rotates after striking a round of ammunition.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: September 3, 2019
    Assignee: M&M MFG LLC
    Inventor: Michael Martinez
  • Patent number: 9062922
    Abstract: A revolver type cylinder with a plurality of chambers for a shotgun. The rotating cylinder is generally hexagonal in cross-section and formed as an injection molded plastic part with openings that receive metal chamber sleeves. The cylinder has a rotation axis and a seventh opening surrounding the axis. The cylinder is mounted to, and rotatable on a receiver on a rotor and a cylinder pin captured within the seventh opening so as to prevent rotation of the cylinder pin with respect to the cylinder body. The cylinder pin has portions forming a central axial opening which extends along the rotational axis and a spring arranged to retract the cylinder pin into the cylinder body. A trigger linkage is mounted for movement in the central axial opening for linking a trigger to a firing mechanism through the opening.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: June 23, 2015
    Assignee: LINEWEIGHT, LLC
    Inventors: Eric C. Burt, Caleb Clark Crye
  • Patent number: 8826798
    Abstract: A fire control selector for an automatic firearm capable of automatic or semiautomatic fire is provided. The firearm has a receiver having a moveable hammer. The selector is rotatably mounted in the receiver. A first sear is rotatably mounted in the receiver to engage the hammer where the first sear contacts a first camming surface of the selector. A second sear is rotatably mounted in the receiver to engage the hammer where the second sear contacts a second camming surface of the selector. A disconnect is rotatably mounted in the receiver where the disconnect contacts a third camming surface of the selector. The selector has a number of selectable positions.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: September 9, 2014
    Assignee: Colt's Manufacturing Company LLC
    Inventors: Paul M. Hochstrate, Michael F. LaPlante
  • Patent number: 8601932
    Abstract: A semi-automatic pistol is provided having a frame, a slide and an arced cam surface extending longitudinally on an inner surface of the slide. The pistol has a barrel mounted between the frame and the slide, and a firing pin mechanism mounted in the slide. A trigger is mounted on the frame. A trigger bar and a sear are also provided. The trigger bar includes a generally planar surface extending between the ends of the trigger bar. The first end is connected to the trigger and the second end has a sear disconnect surface to engage and disengage a sear rotatably disposed in the frame that engages an end of the firing pin. A tab is disposed at an angle to the generally planar surface, where the tab has a top curved surface to slide along the arced cam surface of the slide as the slide moves.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: December 10, 2013
    Assignee: Kimber IP, LLC
    Inventors: Yury Karfiol, John Goliber
  • Patent number: 8572878
    Abstract: A cocking/de-cocking mechanism for semi-automatic striker-fired pistols having a multi-function cocking lever for controlling, by rotational movement, the cocking or arming of the tiring pin, while effecting de-cocking by the lateral displacement of the cocking lever on its support pin.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: November 5, 2013
    Assignee: Beretta USA Corp.
    Inventors: Claudio Gentilini, Jason Kellogg
  • Patent number: 8495832
    Abstract: The invention discloses a safety mechanism of a handgun which depends on a magazine and which prevents the triggering of a handgun when the magazine is removed. Additionally, a mechanism enables handgun disassembly without need for the triggering after the magazine has been removed from the handgun. A safety mechanism is positioned inside the handgun receiver; including a magazine, sear catcher, sear catcher spring, grip safety pin, sear, sear pin, firing pin safety lever and firing pin. When the magazine is inserted into the handgun, the sear catcher is pushed into position in which it cannot block the firing pin safety lever nor catch the sear. When the magazine is removed from the handgun, the sear catcher spring pushes the sear catcher into position in which it blocks the firing chain by blocking the firing pin safety lever.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: July 30, 2013
    Assignee: HS Produkt D.O.O.
    Inventor: Marko Vukovic
  • Patent number: 8220192
    Abstract: Firing assemblies for use with firearms are described. A firing assembly for use with a firearm includes a hammer pivotably coupled to a hammer shaft. The hammer includes a hammer stop notch that at least partially engages a portion of a lever of a trigger assembly when the hammer is in a cocked position and a control curve section that engages a surface of the lever to retain the lever in an unlocked position as the hammer moves between the cocked position and a firing position. Additionally, the firing assembly includes a control element pivotably coupled to the hammer shaft and adjacent the hammer, wherein the control element includes a first control curve portion that at least partially adjoins the control curve section and wherein the hammer interacts with the control element to change a control curve region as the hammer moves between cocked position and the firing position.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: July 17, 2012
    Assignee: Heckler & Koch GmbH
    Inventors: Norbert Fluhr, Hermann Albrecht, Wolfgang Bantle, Johann-August Bantle, Erwin Epp
  • Patent number: 8127657
    Abstract: A safety selector for selectively implementing a firing disabled position for the prevention of unintentional firing of a firearm. The safety selector comprises two prongs adapted to push a cross bolt safety actuation lever to the right or to the left. A DC electrical motor provides torque, which is transferred through a torque transferring mechanism, to the safety selector. The safety selector is particularly useful for actuation via remote control.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: March 6, 2012
    Assignee: Rafael-Armamen-Defence Systems Ltd
    Inventors: Giora Gorali, Moshe Oz, Nativ Shahak
  • Patent number: 8047119
    Abstract: An automatic firearm capable of automatic or semiautomatic fire. The firearm has a receiver having a moveable hammer. A selector is rotatably mounted in the receiver. A first sear is rotatably mounted in the receiver to engage the hammer where the first sear contacts a first camming surface of the selector. A second sear is rotatably mounted in the receiver to engage the hammer where the second sear contacts a second camming surface of the selector. A disconnect is rotatably mounted in the receiver where the disconnect contacts a third camming surface of the selector. The selector has a number of selectable positions disposed so that rotation of the selector between a first and last selectable position of the number of selectable positions is less than 180 degrees.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: November 1, 2011
    Assignee: Colt Defense LLC
    Inventors: Paul M. Hochstrate, Michael F. LaPlante
  • Patent number: 7806039
    Abstract: A firearm has a frame with a barrel connected to the frame and defining a barrel axis. The barrel has a rear end defining a chamber, and a bolt assembly reciprocates with respect to the chamber between a closed position adjacent the chamber, and an open position away from the chamber. A fire control assembly includes a trigger and a selector switch with a semi-automatic position and a fully-automatic position. The fire control assembly includes a bolt assembly sear operably engaging the bolt. The fire control assembly operates when the selector switch is in the semi-automatic position in response to pulling the trigger to discharge the firearm, to load a cartridge, and to position the bolt in the closed position. The fire control assembly operates when the selector switch is in the fully-automatic position in response to pulling the trigger to discharge the firearm, and to hold the bolt in the open position.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: October 5, 2010
    Assignee: LWRC International, LLC
    Inventor: Jesus S Gomez
  • Publication number: 20100132541
    Abstract: An automatic firearm capable of automatic or semiautomatic fire. The firearm has a receiver having a moveable hammer. A selector is rotatably mounted in the receiver. A first sear is rotatably mounted in the receiver to engage the hammer where the first sear contacts a first camming surface of the selector. A second sear is rotatably mounted in the receiver to engage the hammer where the second sear contacts a second camming surface of the selector. A disconnect is rotatably mounted in the receiver where the disconnect contacts a third camming surface of the selector. The selector has a number of selectable positions disposed so that rotation of the selector between a first and last selectable position of the number of selectable positions is less than 180 degrees.
    Type: Application
    Filed: February 1, 2010
    Publication date: June 3, 2010
    Applicant: Colt Defense LLC
    Inventors: Paul M. Hochstrate, Michael F. LaPlante
  • Patent number: 7676974
    Abstract: 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: Grant
    Filed: May 30, 2006
    Date of Patent: March 16, 2010
    Assignee: Tomas Quis
    Inventor: Vladimir Zemanek
  • Patent number: 7654187
    Abstract: An automatic firearm capable of automatic or semiautomatic fire. The firearm has a receiver having a moveable hammer. A selector is rotatably mounted in the receiver. A first sear is rotatably mounted in the receiver to engage the hammer where the first sear contacts a first camming surface of the selector. A second sear is rotatably mounted in the receiver to engage the hammer where the second sear contacts a second camming surface of the selector. A disconnect is rotatably mounted in the receiver where the disconnect contacts a third camming surface of the selector. The selector has a number of selectable positions disposed so that rotation of the selector between a first and last selectable position of the number of selectable positions is less than 180 degrees.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: February 2, 2010
    Assignee: Colt Defense LLC
    Inventors: Paul M. Hochstrate, Michael F. LaPlante
  • Patent number: 7617628
    Abstract: A firearm includes a frame and a slide. A firing mechanism for the firearm includes a striker-type firing pin, a trigger, and a trigger bar. A sear inside the frame is pivotally balanced about a central fulcrum, and is biased in a first pivotal direction by a spring. In this position, a rear portion of the sear engages the firing pin. Actuation of the trigger causes the trigger bar to move rearwards for engagement of a forward portion of the sear. This pivots the sear in a second pivotal direction, against the spring, which releases the firing pin. The spring then causes the sear to pivot back for reengaging the firing pin when it returns to its rear position. Movement of the slide to a retired position causes the trigger bar to disengage from the sear (preventing discharge of the firearm) until the slide returns to a battery position.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: November 17, 2009
    Assignee: Smith & Wesson Corp.
    Inventor: Brett Curry
  • Patent number: 7562614
    Abstract: A closed bolt system with a trigger assembly for converting an open bolt, blowback type submachine gun into a single firing carbine is provided. The closed bolt system with trigger assembly includes a tensioned trigger member supporting a tensioned disconnector system. A tensioned sear interacts with the disconnector system and a tensioned hammer. The hammer strikes a firing pin in the bolt when it is released from the sear. The blowback of the bolt, as a result of expanding gases from the exploding and exiting round, re-cocks the hammer by re-engaging the sear with the hammer and disengages the sear from the disconnector system. Only after releasing the trigger will the sear re-engage with the disconnector system and thereby permit another round to be fired. A receiver having a cavity encloses the bolt and prohibits a fully automatic bolt to be used therewith.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: July 21, 2009
    Assignee: SA Ordinance, LLC
    Inventor: Timothy J. Polston
  • Patent number: 7356959
    Abstract: An authorization system for a firearm (10) includes an authorizing device (32) worn by the authorized user, and a firearm (10) with a fire control system, a computer controller (28), and a piezo-electric disabler (60). The computer controller (28) communicates with the authorizing device (32), and if no authorizing signal is received from the authorizing device, sends an electric output signal to the disabler (60) to prevent the fire control system from allowing the firearm to fire. The disabler, upon application of the electrical signal from the computer controller, cams the rearward moving trigger bar (52) of the fire control system clear of the hammer link (54) to disrupt the fire control system. Consequently, the firearm (10) will not fire.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: April 15, 2008
    Assignee: FN Herstal SA
    Inventors: Edward P. Schmitter, Armand Gering, Paul Michotte, Olivier Coulombier, Milton W. Erickson, Jason L. Hitchcox, Patrick Heins
  • Patent number: 6865979
    Abstract: A method for removing the slide from a semi-automatic firearm is provided that includes the steps of: (1) providing an access port within the slide of the firearm that is positioned to align with the firing mechanism of the firearm; (2) inserting a probe into the access port; and (3) manipulating the firing mechanism with the probe, and thereby enabling the slide to be removed from the frame. A semi-automatic firearm is also provided that includes a frame, a slide removably mounted on the frame, a striker firing-pin mounted within the slide, a firing mechanism, and an access port disposed in the slide. When the slide is in a predetermined position, the firing mechanism can be accessed through the access port with a probe and manipulated to allow removal of the slide from the frame.
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: March 15, 2005
    Assignee: Smith & Wesson Corp.
    Inventor: Pardip K. Vaid
  • Patent number: 6588136
    Abstract: A fire control system with a decocking lever that operates to decock the hammer and also as a safety. The fire control system also has a magazine safety to complement the decocking lever's dual functions. The magazine safety is in the “safety on” position when a magazine is not fully seated in the magazine well and in the “safety off” position when the magazine is fully seated. In one embodiment, rotating the decocking lever by lifting one of the thumb tabs applies the safety if the hammer is cocked and rotating the decocking lever in the other direction causes the sear to release the hammer but catch it before it reaches the firing pin. In an alternate embodiment, the decocking lever can be used as a safety regardless of whether the hammer is cocked or not. Further rotation lower a cocked hammer.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: July 8, 2003
    Inventors: Richard L Baker, Eric T Myers
  • Patent number: 6431045
    Abstract: A device is disclosed for a weapon for firing burst of several shots. The device unlocks and latches the rifle bolt in the rear position to avoid heat distribution from the chamber or barrel to the powder or explosives in the booster charge or the explosive projectile, and to prevent firing by emptying or handling the weapon. The activator moves the trigger into engagement with the stop flap of the rifle bolt, thereby releasing the spring force of the rifle bolt forwardly during firing only when the rifle bolt and the cover are in the locked position.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: August 13, 2002
    Assignee: Vinghogs Mek. Verksted AS
    Inventor: Oddbjorn Eken
  • Patent number: 6079311
    Abstract: A noise and recoil suppressor that is intended to be mounted within the terminal portion of a firearm barrel. The suppressor is a unitary structure having a cylindrical body and a plurality of chambers extending transversely therethrough and spaced-apart in the longitudinal direction of the device. The chambers are configured so as to restrain and slow the passage of the exhausting gases resulting from a bullet that has discharged and passing therethrough so as to suppress both the resulting noise and recoil from the discharging firearm. The suppressor is provided with external threads adjacent its outer end, and a firearm barrel into which the device is to be slidably inserted is suitably drilled-out and provided with internal threads for threadable securement of the device within the end of a firearm barrel. A second and shorter embodiment of the suppressor is disclosed that primarily functions as a recoil suppressor.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: June 27, 2000
    Inventors: Carl L. O'Quinn, Raymond W. Andrews, Jr.
  • Patent number: 5913261
    Abstract: A trigger arrangement for an automatic weapon with switch-over between continuous firing and single-shot modes includes a hammer, a breechblock, a latch, a pivotably mounted trigger, and a firing lever. In the single-shot mode, the firing lever engages the hammer and retains it in tension while the trigger is depressed. When the continuous firing mode is selected, the firing lever is moved to an inactive position and retained by an engaging element. The engaging element is preferably a slider which is controlled by a safety and firing cessation roller that is actuated by an operating lever.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: June 15, 1999
    Assignee: Heckler & Koch GmbH
    Inventors: Manfred Guhring, Helmut Danner
  • Patent number: 5797206
    Abstract: A method of reversibly converting pistols that have been manufactured as double action pistols to single action, target pistols. The double action pistols have an initial trigger stroke for the double action performance thereof. The length of the trigger stroke is substantially reduced by the removable placement of an abutment between opposed portions of the trigger and the frame, i.e., to the top of the trigger, to substantially shorten the full length of the trigger stroke. The hammer is modified to include an intermediate notch of sufficient depth and positioned to serve as a safety in the event that the hammer is dislodged in its fully cocked position. Any other mechanisms that inhibit the conversion to single action are removed, depending upon the pistol's structure. Such mechanisms may include the firing pin safety mechanism. The trigger, sear and hammer may be modified by replacement with parts having the desired features.
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: August 25, 1998
    Assignee: Smith & Wesson Corp.
    Inventor: Olimpio Vitorino
  • Patent number: 5773746
    Abstract: A coupler for attaching a suppressor to a firearm flash hider. The coupler includes a main body, an inner collar, and an outer collar. The main body defines a through bore configured to closely receive the flash hider at one end and for the passage of the bullet at the other. The main body defines a first threaded portion proximate the central portion thereof, the threads being right-handed threads. The main body defines a sound suppressor attachment device at the second end thereof. The inner collar defines a through bore oriented coaxially thereto. A first end of the through bore is configured to receive the first end of the main body. Proximate the second end of the inner collar, the through bore defines a second inner diameter dimensioned to receive the firearm flash hider. The inner collar carries a plurality of locking fingers, each pivotally mounted on the inner collar via a pivot pin.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: June 30, 1998
    Inventor: Philip D. Vaden
  • Patent number: 5746018
    Abstract: A device for use as a muzzle brake for an underwater gun having a project conveying structure with concentric inner and outer cylinders. The inner cylinder has at least one longitudinal slot formed therein. A sealing means joins the projectile conveying structure to the underwater gun at the structure's first end. A second end of the structure is provided with a seal for closing the second end after a projectile is fired through it. A piston having an aperture therethrough is positioned inside the inner cylinder and is axially moveable therein adjacent the longitudinal slot. An actuator is positioned between the inner cylinder and the outer cylinder. Actuator links through the longitudinal slot connect the piston with the actuator. After a projectile is fired through the projectile conveying structure to displace the piston from its initial position, the actuator means returns the piston to that initial position to ready the device for reuse.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: May 5, 1998
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Ivan N. Kirschner, Gary R. Berlam
  • Patent number: 5697178
    Abstract: An improved fire control mechanism for firearms in which a connector is interposed between the trigger and the sear with the connector assembly and sear coupled through a linkage, interruptable by a disconnector, such that with a safety cross-button pushed to "Safe" position, the trigger, sear and hammer are blocked when the action is closed. The arrangement prevents accidental discharge of the arm in the event it is dropped, struck or disturbed, and so forth.
    Type: Grant
    Filed: June 23, 1995
    Date of Patent: December 16, 1997
    Inventor: Philip R. Haskell
  • Patent number: 5686688
    Abstract: A noise abatement system for a large caliber gun includes a gun muffler and a projectile stop, both of which are mounted on a concrete slab. The gun muffler can be coupled at an end to a gun tube of the gun and serves to attenuate pressure waves caused by the firing of a projectile by the gun. The projectile stop is longitudinally aligned with the gun muffler and serves to selectively stop projectiles fired by the gun and to selectively permit projectiles to pass. The projectile stop preferably has an opened first end closest to the gun muffler and a second end to which a door is mounted. When it is desired to aim for a target beyond the projectile stop, the doors are opened to permit the projectile to pass through the projectile stop unhindered. When the projectile stop is used to stop projectiles, the doors are closed and the projectile stop is filled with a particulate material, such as sand.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: November 11, 1997
    Assignee: Wright Malta Corporation
    Inventors: Raymond P. Kazyaka, Raymond J. Kazyaka
  • Patent number: 5679916
    Abstract: A silencer for a firearm is disclosed as comprising a composite outer wall, an end piece which forms a silencer muzzle and in which is located an exit opening, an attachment piece which is attached to said end piece, and a middle piece which is positioned between the attachment piece and the end piece. The middle piece comprises a selected number of successive chambers which are aligned with each other. Each of chambers has a firing opening and an outside wall. Each of the chambers is attached in a modular fashion directly to an adjoining one of the selected number of chambers. The outside walls of the selected number of chambers form the composite silencer wall. The number of chambers is selected in accordance with the intended use of said silencer.
    Type: Grant
    Filed: March 17, 1995
    Date of Patent: October 21, 1997
    Assignee: Heckler & Koch GmbH
    Inventor: Berthold Weichert
  • Patent number: 5635664
    Abstract: A functioning mechanism for a small caliber automatic weapon includes a translatable and rotatable sear, and a rotatable hammer. The sear includes a hooking element adapted to contact a bearing surface of the hammer to render the hammer immobile. Rotating movement of the sear is controlled by the hammer in such a way as to obtain clean contact between the hooking element and the bearing surface.
    Type: Grant
    Filed: April 14, 1995
    Date of Patent: June 3, 1997
    Assignee: Giat Industries
    Inventors: Rene Pons, Jean-Pierre Montgrenier
  • Patent number: 5615507
    Abstract: A locking mechanism for a firearm a striker which is slidably mounted in the breach end of the barrel of the firearm for movement between a rearward cock position and a forward firing position. The striker is biased toward the firing position and is moved to the cock position against the bias by an actuator. The fire control mechanism includes a trigger housing which is fixed to the breach end of the barrel and a trigger which is mounted for pivoting movement between a cocked position and a firing position. The sear is also mounted on a housing for pivoting movement between a striker holding position and a striker release position. The sear is effective to hold the striker in its cocked position and is, in turn, held in its regular holding position by the trigger.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 1, 1997
    Assignee: Thompson Intellectual Properties, Ltd.
    Inventor: Kendrick L. French
  • Patent number: 5610360
    Abstract: A muffler for a large caliber gun having a gun tube includes a transition section fitted around the gun tube and engaging the gun tube for preventing the escape of residual combustion gases caused by the firing of a projectile by the gun. Attached to the transition section is at least one pressure vessel which defines a pressure chamber for containing residual combustion gases and attenuating pressure waves. A vent stack is coupled to the pressure vessel at a port of the pressure chamber, and an exhaust blower is disposed in the vent stack for removing residual combustion gases from the pressure chamber between firings. A valve, disposed in the vent stack between the pressure chamber and the exhaust blower, closes during firings of the gun and opens between firings for permitting the exhaust blower to remove residual combustion gases from the pressure chamber.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: March 11, 1997
    Assignee: Wright Malta Corporation
    Inventors: Raymond P. Kazyaka, Raymond J. Kazyaka
  • Patent number: 5517897
    Abstract: A firearm having a toggle and bolt assembly. The bolt is reciprocal and houses a firing pin connected to a driver which are spring biased by the recoil springs. The firing pin is independent of the bolt and is engaged by a trip and sear mechanism when the weapon is initially cocked. The recoil springs act also as firing pins but are taken out of the system when the gun is cocked. The toggle mechanism is biased toward a bolt closed position by a handle spring. The ejector and trigger are held in place by pins in blind bores to prevent ready conversion to automatic firing.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: May 21, 1996
    Inventor: Walter E. Perrine
  • Patent number: 5517896
    Abstract: A firearm having a toggle and bolt assembly. The bolt is reciprocal and houses a firing pin connected to a driver which are spring biased by the recoil springs. The firing pin is independent of the bolt and is engaged by a trip and sear mechanism when the weapon is initially cocked. The recoil springs act also as firing pins but are taken out of the system when the gun is cocked. The toggle mechanism is biased toward a bolt closed position by a handle spring. The ejector and trigger are held in place by pins in blind bores to prevent ready conversion to automatic firing.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: May 21, 1996
    Inventor: Walter E. Perrine
  • Patent number: 5461962
    Abstract: A silencer arrangement for large-caliber guns (3;33,34) including at least one silencer (5;54,55). In order for the system characteristics of the gun (3;33,34) not to be negatively influenced by the heavy weight of the silencer (5;54,55), the silencer is not fastened (5;54,55), as in the case of small-caliber weapons, on the weapon tube or barrel itself, but instead, is arranged on a separate silencer gun carriage (6;39) which is mechanically decoupled from the gun (3;33,34), with the gun carriage (6;39) preferably being configured such that the silencers (5;54,55) may be moved in synchronism with the movement of the gun barrel.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: October 31, 1995
    Assignee: Rheinmetall GmbH
    Inventors: Herbert Krumm, Karl Wiemers
  • Patent number: 5425299
    Abstract: A silencer apparatus that can be attached to a standard autoloading handgun having a laser sight module mounted to the front face of the slide of the handgun. The silencer module features additional electronics so that the firing status of the firearm can be ascertained. A skid plate protected switch in the magazine compartment of the handgun provides information as to whether a new clip has been inserted. A flash detector located within the silencer counts the rounds fired and provides a digital read-out of remaining rounds to be fired. Also, the accumulated fired rounds is provided to enable the user to know when the silencer needs cleaning. Noise reduction is provided by a metal honeycomb.
    Type: Grant
    Filed: July 12, 1993
    Date of Patent: June 20, 1995
    Inventor: James W. Teetzel
  • Patent number: 5398589
    Abstract: A muffler for a large caliber gun having a gun tube includes a transition section fitted around the gun tube and engaging the gun tube for preventing the escape of residual combustion gases caused by a firing of the gun. Attached to the transition section is at least one pressure vessel which defines a pressure chamber for containing residual combustion gases and attenuating pressure waves. A vent stack is coupled to the pressure chamber at a port of the pressure chambers and an exhaust blower is disposed in the vent stack for removing residual combustion gases from the pressure chamber between firings. A valve, disposed in the vent stack between the pressure chamber and the exhaust blower, closes during firings of the gun and opens between firings for permitting the exhaust blower to remove residual combustion gases from the pressure chamber. At least one baffle and orifice assembly in the pressure chamber serves to attenuate pressure waves.
    Type: Grant
    Filed: January 12, 1994
    Date of Patent: March 21, 1995
    Assignee: Wright Malta Corporation
    Inventors: Raymond P. Kazyaka, Raymond J. Kazyaka
  • Patent number: 5355765
    Abstract: A barrel has an inner tube with a chamber at one end and a muzzle at the other. The barrel guides projectiles such as bullets as they are accelerated by a propellant. The inner tube has an aperture near its front end. Propellant passes through the aperture into a propellant chamber formed by the inner tube and an outer tube positioned about and secured to the inner tube. A plurality of ribs extend between the inner and outer tubes. Also, a coolant may be inserted into the propellant chamber to escape through the muzzle with the propellant after the projectile exits the muzzle.
    Type: Grant
    Filed: December 2, 1992
    Date of Patent: October 18, 1994
    Inventor: Ernest Rogers
  • Patent number: 5315914
    Abstract: A firearm with muzzle noise reducer is disclosed with one or more barrels in which the bullets reach their final velocity in front of the barrel and a muzzle noise reducer constructed such that it can divert propellant gas upon reaching the final bullet velocity. This construction for diverting the propellant generally is in form of openings located length-wise in a barrel. The openings may have different forms and arrangements, e.g. an electronic and/or inertia-activated time-control element that controls the divergence of propellent gas. A method of reducing the muzzle noise is also disclosed.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: May 31, 1994
    Assignee: Heckler & Koch GmbH
    Inventor: Michael Schumacher
  • Patent number: 5164535
    Abstract: A gun silencer (10) comprises an outer tube (16) having disk-shaped baffles (18) separated by intermediate spacers (20, 23, 25, 27) therein having bores through which discharge from a muzzle (14) of a gun barrel (12) travels. The baffles include rear beveled diversion passage pairs (48a and b) adjacent to and leading from front ports (56) into baffle bores (46) and front beveled diversion passage pairs (50a and b) leading from the baffle bores to rear ports (58) in intermediate spacers leading to outer chambers (even numbers 76-88) formed between the intermediate spacers, the baffles, and the outer tube. A bore (28) of the tube is threaded along its entire length. Front and rear faces 40 and 42 of baffles are knurled.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: November 17, 1992
    Assignee: Silent Options, Inc.
    Inventor: John D. Leasure
  • Patent number: 5149898
    Abstract: A fire control assembly (400) is provided with increased safety features. A set porch (470) is formed on a disconnect (404) to hold a firing window (416) of the disconnect (404) out of contact with a sear pin (412). A pin (458) engages a safety surface (460) on the disconnect (404) to hold the disconnect (404) in a direction (494) until the firing window (416) passes under the sear pin (412) and the sear pin (412) engages the set porch (470). Once the sear pin (412) is on the set porch (470), the trigger (402) must be pulled to engage the sear pin (412) with the firing window (416).
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: September 22, 1992
    Assignee: Ram-Line, Inc.
    Inventors: M. Gaines Chesnut, William L. Wood, Ernest Brandenburg
  • Patent number: 5136923
    Abstract: A firearm sound suppressor which includes an outer housing, an interior perforated tube located within the outer housing, and spacing between the outer housing and interior perforated tube, and method of making. The sound suppressor is adapted to be mounted on a firearm.
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: August 11, 1992
    Inventor: Donald J. Walsh, Jr.
  • Patent number: 5136924
    Abstract: A silencer for use with pistols with a fixed or tilting barrel. The design configuration is such that the sighting line is retained when the silencer is fitted. Handleability of the weapon is not seriously adversely affected by the design configuration and the lightweight structure.
    Type: Grant
    Filed: January 7, 1991
    Date of Patent: August 11, 1992
    Assignee: SIG Schweizerische Industrie-Gesellschaft
    Inventors: Theobald Forster, Peter Goepfert
  • Patent number: 5119716
    Abstract: A muzzle brake (10) for a gun barrel (12) to be attached coaxially onto the muzzle end of the gun barrel up to a radially extending annular abutment surface (20) and provided with elongated gas discharge openings (14) which are arranged transversely to the axis of the bore (16) over its lateral effective length region (L.sub.2) and have a minimum opening length (L.sub.1) at the rear of the effective length of the muzzle brake (10), i.e., adjacent the position of the abutment surface (20), the axial inner bore (18) of the muzzle brake (10) has an inner diameter (d) which corresponds to the rifling diameter (d.sub.1) of the gun barrel (12) and its rear end ends at the radially extending abutment surface. The gas discharge openings (14) are provided with rearwardly sloped baffles (24) and gas guide surfaces (26) which have different lengths in the rear region of the muzzle brake (10) and have the same opening length (L.sub.1) in the forward region.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: June 9, 1992
    Assignee: Rheinmetall GmbH
    Inventor: Rolf Bartolles
  • Patent number: 5086578
    Abstract: A spring for positioning a sear of a firearm and a method of manufacturing a firearm. The spring has a first section that is connected to the frame of the firearm, a second section that exerts a biasing force against the sear in a first direction, and a third section adapted to move in a direction relatively perpendicular to the direction of the second section. The second and third sections are preferably leaf springs and are adapted to position the sear in two positions depended upon movement of the trigger.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: February 11, 1992
    Assignee: Colt's Manufacturing Company, Inc.
    Inventors: Bryant L. Lishness, Paul A. Scirica
  • Patent number: 5078043
    Abstract: A silencer is provided for a machine pistol which silencer minimizes abrasive or frictional contact between the ballistic fired through the silencer in order to extend silencer life. The silencer includes a series concentric screen baffles which are retained in two concentric tubes. In the inner tube, a plurality resilient wipes are provided to contact the ballistic fired through the silencer without allowing contact between any of screen baffles in the fired ballistic.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: January 7, 1992
    Inventor: Mark L. Stephens
  • Patent number: 5033356
    Abstract: A noise suppressed firearm includes a closed chamber of fixed volume in communication with the barrel bore at a location nearer the breech than the muzzle. The closed chamber communicates with the barrel bore through passage means having a cross-sectional area at least as large as the barrel bore. The passage means communicates with the barrel bore at a location measured from the breech not greater than about 30% of the barrel length.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: July 23, 1991
    Inventor: H. Gary Richardson
  • Patent number: 5029512
    Abstract: A silencer or noise suppressor for firearms consisting of an elongated body connected to the firearm muzzle into which the expanding gases and projectile are received. The expanding gases are initially received within a chamber and pass through ports defined in a deceleration plate into a chamber communicating with a plurality of baffles arranged in end-to-end relationship. The baffles each include a diverging bore through which the gases may expand, and externally, each baffle includes a spiral vane receiving the expanding and cooling gases. The vanes of adjacent baffles are in communication whereby gas back-pressure within portions of the vanes cause localized gas compression slowing gas expansion and the generation of audible frequencies.
    Type: Grant
    Filed: April 16, 1990
    Date of Patent: July 9, 1991
    Inventor: Gregory S. Latka
  • Patent number: 4977815
    Abstract: An automatic machine pistol is provided, which is not subject to fouling, which is compact and light while incorporating a pneumatic recoil buffer, which resists muzzle climb, and which can be accessed and cleaned without disassembly. The machine pistol is comprised of a reciprocating bolt within a housing of the pistol. The reciprocating bolt is carried within the housing on four rails by eight roller bearings. No sliding contact is made between the bolt and any other portion of the pistol. A portion of the high pressure gas from the barrel is bled through a bleed hole in the barrel block or barrel into a gas port tube which is telescopically inserted into the bolt. The gas port tube delivers the portion of the discharge gas in a forward direction in opposition to the motion on recoil. An upwardly directed nozzle is communicated to the receiving bore within the bolt.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: December 18, 1990
    Inventor: Mark L. Stephens
  • Patent number: 4974489
    Abstract: A suppressor for reducing the muzzle blast and noise of firearms or like devices. Several specially configured baffles are aligned serially with intervening expansion chambers within a square tubular housing. The housing containing the baffles is aligned axially within a larger round tubular housing and held in place by an encapsulator at each end. The suppressor assembly has an internal axial passage which permits unobstructed passage of projectiles from the firearm during firing. The specially configured baffles are made of heat absorbent and heat conductive material. The serially disposed baffles shear propellant gases at differing angles forcing them away from the bullet path through openings or ports into the outer housing.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: December 4, 1990
    Inventor: Franklin J. Fishbaugh
  • Patent number: 4939977
    Abstract: A gun silencer and muzzle protector utilizes a hollow housing mounted on a gun barrel with expandable release doors being positioned within the housing. The release doors are pivotally mounted within the housing and are normally retained together in a cone-shaped abutting relationship through the use of a circumferentially extending spring positioned about the doors. A lining employed in the housing silences a gunshot and several different types of adapters may be utilized to mount the housing and associated doors to the gun barrel. The adapters include a first type which is threadably attachable to a gun barrel, a second type which utilizes a split sleeve construction to clamp the adapter to a gun barrel, and a third type which utilizes a radially extending clamp member to clamp the adapter to the gun barrel with the third type of adapter being used in conjunction with any type and caliber of gun.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: July 10, 1990
    Inventor: Larry J. Stroup