Revolvers Patents (Class 42/59)
  • Patent number: 10215528
    Abstract: A rifle grip device may include a body configured to be attached to a pistol grip interface of a firearm with the body having a first end and a second end. A receiver plate may be disposed on the body, and the receiver plate may have a receiver mating surface. A stock plate may be disposed on the body, and the stock plate may have a stock mating surface disposed between the receiver plate and the second end. A one or more finger ridges may be disposed on the body opposite to the stock plate. One or more finger surfaces may extend along the body and onto and/or between the finger ridges so that the one or more finger surfaces may be generally horizontally aligned between the first end and second end of the body.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: February 26, 2019
    Inventor: Nicholas A. Joros
  • Patent number: 10190840
    Abstract: A firearm support attaches to a lower surface of a firearm and helps steady the firearm during shooting from almost any firing position. The support has a body member that has a firearm lower railing receiving channel on its upper surface and a downwardly and forwardly curving claw extending from the lower surface at the front. The claw has a rounded edge and a centrally disposed wedge opening. The lower surface of the body member is also curved as is the rear surface. A pair of extendions extends outwardly, one from each side of the body member just above the upper end of the claw and each has a forward facing surface that is flat.
    Type: Grant
    Filed: February 21, 2016
    Date of Patent: January 29, 2019
    Inventor: James Renteria
  • Patent number: 10180295
    Abstract: A structure of a wheel-type positioning device includes a gun body, a wheel and a grip portion. A bullet is placed into a receiving slot of the wheel through a lead trajectory on the gun body. The receiving slots of the wheel can sequentially correspond to a barrel to complete loading actions through frontward and rearward reciprocating displacement actions of the grip portion, and through a linking rod of the grip portion driving a limiter thereon to rotate the wheel.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: January 15, 2019
    Inventor: Chiao-Wei Tang
  • Patent number: 9927208
    Abstract: This disclosure relates to a system and method for storage of a modular cartridge within a cavity formed in a portion of a firearm, wherein the cavity is not the magazine well of the firearm. The disclosure provides for a system for disengagebly retaining such modular cartridges, as well as multiple embodiments of cartridges which may be retained therein. Such embodiments of modular cartridges include: a miniature magazine (mini-mag) which may be used to store ammunition, and which may be operable as a magazine for the firearm; a dry box which may be used to store materials in a manner in which they are protected from the ambient environment; a monopod which may be used to help support a firearm; a flashlight; and a battery charger, which may provide for a usb output.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: March 27, 2018
    Assignee: Magnetospeed, LLC
    Inventors: Weston Petersen, Alex Sitzman, Garet Itz
  • Patent number: 9803955
    Abstract: A specialized underwater pistol with ammunition includes one or more of barrel expansions to shape the pattern of the plural shot pieces expelled from a pistol cartridge when the pistol is fired, an aerodynamic trigger cam or spur, flushing ports, a wide trigger pull, a wide hammer spur, a cartridge shot carrier with a frangible end, and cartridge sealant.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: October 31, 2017
    Inventor: Terry L. Fleming
  • Patent number: 9719761
    Abstract: A firearm system having separate frame, action, & lock systems is disclosed. The firearm system is closed, sealed, and inaccessible when in safe mode. The physical gripping of the firearm allows access to a lock input component which is then physically actuated at which point if a lock code has been input correctly, the firearm system changes from safe mode to firing mode thereby allowing use as a firearm. Upon physical release of the grip, the firearm immediately returns to safe mode.
    Type: Grant
    Filed: August 24, 2014
    Date of Patent: August 1, 2017
    Inventor: Hanners Gevedon
  • Patent number: 9683799
    Abstract: The present invention is revolver louver which redirects the hot propellant gases which leak from the barrel-cylinder gap away from the user. The louver provides at least one directional passages which control the flow of propulsion gases after firing the revolver. Numerous embodiments are disclosed including some having an expansion capability to further block gas passage and one embodiment which is an extension of the revolver frame itself. One embodiment further comprises an expansion groove to further block the passage of propulsion gases. As such, the present invention's general purpose is to provide a new and improved revolver that is more compact and safer for the user than a conventional revolver.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: June 20, 2017
    Inventor: Paul A. Tusting
  • Patent number: 9453696
    Abstract: The present invention is revolver louver which redirects the hot propellant gases which leak from the barrel-cylinder gap away from the user. The louver provides at least one directional passages which control the flow of propulsion gases after firing the revolver. Numerous embodiments are disclosed including some having an expansion capability to further block gas passage and one embodiment which is an extension of the revolver frame itself. One embodiment further comprises an expansion groove to further block the passage of propulsion gases. As such, the present invention's general purpose is to provide a new and improved revolver that is more compact and safer for the user than a conventional revolver.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: September 27, 2016
    Inventor: Paul A. Tusting
  • Patent number: 9389043
    Abstract: A rail is mounted solely to a barrel nut so that the rail is free-floating and does not affect movement of the barrel when the firearm is fired. The rail may have first and second wedges that are drawn together and frictionally engage a smooth exterior surface of the barrel nut in order to frictionally engage the wedges and the barrel nut. The first and second wedges have contact surfaces defined by a radius which is equal to a radius of the exterior surface of the barrel nut. By forming the contact surfaces of the first and second wedges to have a radius equal to the radius of the barrel nut, the maximum area of the contact surfaces contact or engage the exterior surface of the barrel nut to maximize frictional engagement between the barrel nut and the wedges.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: July 12, 2016
    Inventor: Hongjun Zhang
  • Patent number: 9316452
    Abstract: Provided is a revolver with a two chambers cylinder, of the type having a low profile and with no protruding parts from the frame. The revolver includes a frame which has a grip at its rear portion, a trigger at its lower portion and a barrel at its front portion. The frame further includes a central opening that defines the cylinder housing. The cylinder has an oblong shape and has two chambers, radially opposite with respect to the rotation axis of the cylinder. The cylinder rotation before firing is obtained by means of the trigger actuation, which causes an upward movement of the cylinder impeller and the consequent rotation of the gear, due to interaction between the pinion and the teeth of the cylinder impeller. The transfer of the rotational movement of the gear to the cylinder is made from a ratchet, which is partially arranged within said cylinder.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: April 19, 2016
    Assignee: Forjas Taurus S.A.
    Inventor: Anderson da Silva Assis
  • Publication number: 20150107145
    Abstract: The present invention is revolver louver which redirects the hot propellant gases which leak from the barrel-cylinder gap away from the user. The louver provides at least one directional passages which control the flow of propulsion gases after firing the revolver. Numerous embodiments are disclosed including some having an expansion capability to further block gas passage and one embodiment which is an extension of the revolver frame itself. One embodiment further comprises an expansion groove to further block the passage of propulsion gases. As such, the present invention's general purpose is to provide a new and improved revolver that is more compact and safer for the user than a conventional revolver.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 23, 2015
    Applicant: IRONMONGER ARMS, LLC
    Inventor: Paul A. Tusting
  • Publication number: 20150059223
    Abstract: In various embodiments, a multi-barrel revolver and/or firearm system may comprise a cylinder barrel. The cylinder barrel may be removable from a frame. The cylinder barrel may comprise one or more chambers coupled to one or more barrels. The cylinder barrel may be further configured to shoot a plurality of calibers of ammunition. In various embodiments, the cylinder barrel may allow an operator to scavenge and fire any caliber of ammunition.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 5, 2015
    Inventors: Tim Ralston, Joe Sirochman
  • Patent number: 8898947
    Abstract: Aspects described herein relate to an open chamber gun mechanism comprising a frame and a cylinder assembly that forms an open chamber positioned for rotation within the frame, said open chamber including an insert positioned within the open chamber, the insert forming an expandable region between the open chamber and cylinder. According to one embodiment, the insert is configured to deflect into the expandable region upon firing the open chamber gun mechanism.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: December 2, 2014
    Assignee: Open Chamber Systems, LLC
    Inventors: Steven Michael Dardick, Thomas Michael Dardick, David Scott Dardick
  • Patent number: 8844184
    Abstract: The present invention is a spring-actuated, concealable revolver utilizing a flattened cylinder shape and a unique off-chamber placement of the cylinder when in a stowed safe mode. An extendable grip tag may also be employed to provide a further reduced profile. Various grip styles, unloading mechanisms and advancing actions may be employed with the revolver. Single and double action embodiments are disclosed.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: September 30, 2014
    Assignee: Ironmonger Arms LLC
    Inventor: Paul A. Tusting
  • Patent number: 8826578
    Abstract: A functional metallic and autonomous structure for fire-arms and revolvers is described. The revolver composed of metal/plastic, has a metallic structure, and is composed of the cylinder frame, provided with a hole having an internal thread for receiving and sustaining the revolver barrel. All the components of the discharge mechanism are embedded and/or sustained in said cylinder frame, defining the metallic structure, through which the junction of said cylinder frame, of the barrel and the components of the discharge mechanism will result in a semi-finished, fully functional revolver. The revolver also comprises at least a rear cover, a plate and a polymeric piece, intended for coating/covering at least a part of the metallic structure.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: September 9, 2014
    Assignee: Forjas Tauras S/A
    Inventor: Plinio Assis França Nogueira
  • Patent number: 8813411
    Abstract: An accessory is mountable to the side plate of a gun. The accessory may be a sighting device including a light source (preferably a laser), and a power source connectable to the light source. The side plate is positioned on the gun, which is preferably a revolver, preferably by being screwed to it. The side plate includes an attachment mechanism that is preferably located behind the trigger guard and behind the gun cylinder, wherein the accessory is attachable to the attachment mechanism.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: August 26, 2014
    Assignee: P&L Industries, Inc.
    Inventors: Larry E. Moore, Aaron Moore
  • Publication number: 20140215879
    Abstract: A revolver cylinder is rotated at least approximately at a speed that corresponds to the normal rate of fire of a weapon. When a predetermined loading step is reached, the trigger of the weapon is controlled such that fire can be opened essentially without delay. The weapon is fired without break immediately after (with) the loading process. At the same time, the weapon is transferred, thus only directly before firing, from a secure SAFE state to the CHARGED state, whereby the safety standards of the weapon are significantly improved. The time during which the weapon is in the state of operational and firing readiness and not in the SAFE state is minimized or entirely eliminated, which considerably increases the operating safety. Extending the time in the SAFE state allows the level of testing for the weapon (for example for the trigger) to be greater, which in turn results in greater reliability of the weapon.
    Type: Application
    Filed: October 15, 2013
    Publication date: August 7, 2014
    Applicant: Rheinmetall Air Defence AG
    Inventors: Michael GERBER, Alfred VONLANTHEN
  • Patent number: 8752319
    Abstract: A gun or other projectile launching device includes a frame, and a barrel, including a bore therethrough, held in position by the frame. A cylinder is rotatable attached to the frame in close proximity to an inner end portion of the barrel, the cylinder having multiple chambers and configured to sequentially and longitudinally align a chamber with the bore of the barrel. A sleeve is slidingly positioned over the inner end portion of the barrel. The sleeve has a front face with a central opening therethrough, that has a size less than an inner diameter of the sleeve, but no smaller than a diameter of the bore through the barrel. The sleeve is configured to slide back, substantially in response to gas pressure, until the front face of the sleeve is forcibly maintained in contact with the cylinder to eliminate a gap between the cylinder and the barrel.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: June 17, 2014
    Inventor: Daniel Kunau
  • Patent number: 8733010
    Abstract: A rimless cartridge cylinder assembly is used for adapting revolvers which typically require the use of rimmed cartridges to accept rimless cartridges. The assembly includes an extractor mechanism having an extractor rod extending axially through a center passage provided in a cylinder having chambers adapted to receive cartridges. The extractor mechanism has an axially extendable extractor head assembly disposed at a cartridge loading end of the cylinder. The head assembly includes a plurality of spring biased projections housed therein which extend radially into engagement with corresponding grooves in rimless cartridges as they are loaded into each chamber. After discharge, rearward displacement of the head assembly allows the engaged projections to remove the spent cartridges from each chamber. Utilizing the rimless cartridge cylinder assembly, rimless cartridges typically used only with automatic hand guns can be loaded and fired in a revolver with long term reliably.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: May 27, 2014
    Assignee: Charter Arms
    Inventor: D Nickerson Ecker
  • Publication number: 20140082982
    Abstract: A gun or other projectile launching device includes a frame, and a barrel, including a bore therethrough, held in position by the frame. A cylinder is rotatable attached to the frame in close proximity to an inner end portion of the barrel, the cylinder having multiple chambers and configured to sequentially and longitudinally align a chamber with the bore of the barrel. A sleeve is slidingly positioned over the inner end portion of the barrel. The sleeve has a front face with a central opening therethrough, that has a size less than an inner diameter of the sleeve, but no smaller than a diameter of the bore through the barrel. The sleeve is configured to slide back, substantially in response to gas pressure, until the front face of the sleeve is forcibly maintained in contact with the cylinder to eliminate a gap between the cylinder and the barrel.
    Type: Application
    Filed: December 2, 2013
    Publication date: March 27, 2014
    Inventor: Daniel Kunau
  • Publication number: 20140075811
    Abstract: Aspects described herein relate to an open chamber gun mechanism comprising a frame and a cylinder assembly that forms an open chamber positioned for rotation within the frame, said open chamber including an insert positioned within the open chamber, the insert forming an expandable region between the open chamber and cylinder. According to one embodiment, the insert is configured to deflect into the expandable region upon firing the open chamber gun mechanism.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 20, 2014
    Applicant: OPEN CHAMBER SYSTEMS, LLC
    Inventors: Steven Michael Dardick, Thomas Michael Dardick, David Scott Dardick
  • Patent number: 8621772
    Abstract: In a revolver having a frame, carrying a barrel and a revolving cylinder having multiple cartridge chambers therearound, the improvement comprising: a) a sliding sleeve positioned over an inner end portion of the barrel, said end portion of the barrel and inner diameter of the sliding sleeve closely mated; and, a) a sliding sleeve positioned over an inner end portion of the barrel, said end portion of the barrel and inner diameter of the sliding sleeve closely mated; and, b) said sliding sleeve having a front face having a central opening therethrough having an inner diameter nominally equivalent to marginally larger than, a bore through the barrel. Whereafter firing, the sliding sleeve is instantaneously driven back contacting its front face with the revolving cylinder, thereby eliminating any gap between the revolving cylinder and the barrel, preventing exploding gas from escaping therethrough, and substantially increasing bullet discharge velocity and energy.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: January 7, 2014
    Inventor: Daniel J. Kunau
  • Patent number: 8590198
    Abstract: Revolvers with cylinder shrouds include first and second shroud portions, each having a cylindrical wall portion having a length at least as great as the length of a revolver cylinder and an interior surface shaped to be closely spaced apart from an exterior surface portion of the cylinder. The first and second shroud portions each include a fastening mechanism operable to removably connect the first shroud to a revolver frame. The first and second shroud portions each include a fastening element operable to removably connect the first and second shroud portions to the frame to cover the cylinder. The first and second shroud portions may have a major cylindrical wall portion having a radius of curvature centered on axis defined by the cylinder when the first and second shroud portions are connected to the frame.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: November 26, 2013
    Inventor: James Edward Kasper
  • Patent number: 8549782
    Abstract: A firearm comprising a frame, a barrel with a firing axis connected to the frame, a cylinder pivotally attached to the frame and positioned within an opening in the frame and having a plurality of firing chambers sized to receive a cartridge, and a firing mechanism including a trigger attached to the frame to actuate the firing mechanism, wherein the frame is substantially nonmetallic and includes at least one metal insert having a polymer over-molding. A cylinder retaining mechanism selectively retains the cylinder in a first position within a window in the frame and comprises a biasing pin operatively attached to a yoke and which is oriented in a direction substantially transverse to the bore axis when the cylinder is in the first position.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: October 8, 2013
    Assignee: Smith & Wesson Corp.
    Inventor: Brett Curry
  • Publication number: 20130145667
    Abstract: Revolvers with cylinder shrouds include first and second shroud portions, each having a cylindrical wall portion having a length at least as great as the length of a revolver cylinder and an interior surface shaped to be closely spaced apart from an exterior surface portion of the cylinder. The first and second shroud portions each include a fastening mechanism operable to removably connect the first shroud to a revolver frame. The first and second shroud portions each include a fastening element operable to removably connect the first and second shroud portions to the frame to cover the cylinder. The first and second shroud portions may have a major cylindrical wall portion having a radius of curvature centered on axis defined by the cylinder when the first and second shroud portions are connected to the frame.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 13, 2013
    Inventor: James Edward Kasper
  • Publication number: 20130036643
    Abstract: A revolver that has a cylinder that is capable of receiving a cylinder clip so that multiple cylinder clips can be used to quickly reload the revolver.
    Type: Application
    Filed: May 22, 2012
    Publication date: February 14, 2013
    Inventor: T. Max Lawing
  • Patent number: 8359777
    Abstract: A revolver with light-weight firing control housing includes a cylinder frame supporting a rotatable cylinder defining a plurality of cartridge-receiving chambers and a firing control housing made of a non-metallic material. The firing control housing attaches to the cylinder frame and supports firing control mechanism components, such as a trigger and a pivotable hammer actuated by the trigger. In one embodiment, the firing control housing may be made of a polymer and the cylinder frame may be metal.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: January 29, 2013
    Inventor: Joseph J. Zajk
  • Publication number: 20130008069
    Abstract: A functional metallic and autonomous structure for fire-arms and revolvers is described. The revolver composed of metal/plastic, has a metallic structure, which is composed of the cylinder frame, provided with a hole having an internal thread for receiving and sustaining the revolver barrel. All the components of the discharge mechanism are embedded and/or sustained in said cylinder frame, defining the metallic structure, through which the junction of said cylinder frame, of the barrel and the components of the discharge mechanism will result in a semi-finished, fully functional revolver. The revolver also comprises at least a rear cover, a plate and a polymeric piece, intended for coating/covering at least a part of the metallic structure.
    Type: Application
    Filed: January 15, 2010
    Publication date: January 10, 2013
    Applicant: FORJAS TAURUS S/A
    Inventor: Plinio Assis França Nogueira
  • Publication number: 20120144712
    Abstract: 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: Application
    Filed: January 29, 2009
    Publication date: June 14, 2012
    Inventor: Charles Edward Rostocil
  • Publication number: 20110094138
    Abstract: A revolver for firing high velocity ammunition includes a frame, a cylinder, a barrel, and a firing mechanism. The revolver may include one or more of the following, each of which is especially adapted for use in the context of firing high velocity ammunition: spacers for adjusting a barrel-cylinder gap, for eliminating broaching of the rearward surface(s) of the barrel; a forcing cone formed in the rearward opening of the barrel for accommodating deformed projectiles; a reflective surface (e.g., mirrored surface) provided on the cone and/or barrel rearward surfaces, for reducing erosion resulting from using high velocity ammunition; gain-twist rifling in the barrel for a smoother transition to full projectile velocity; a larger diameter, hardened firing pin bushing for minimizing brass flow in the rearward direction; and a front sight assembly that minimizes lateral shift or drift of the sight pin during firing.
    Type: Application
    Filed: December 20, 2010
    Publication date: April 28, 2011
    Applicant: SMITH & WESSON CORP.
    Inventors: JASON ROBERT DUBOIS, SIMON MICHAEL MUSKA, GARY E. ZUKOWSKI, JOHN W. AVEDISIAN, BRETT CURRY
  • Publication number: 20110072705
    Abstract: A compact and foldable survival tool includes a firearm including a trigger and safety lever with many unique features including a compact and folding survival tool with an easy-to-manufacture top strap, a rack and pinion hammer actuator, dual lasers for distress signaling and target and ranging sighting, reconfigurable multiple tools, contained child-safety lock system, folding trigger with safety lever, cam hammer lock, floating firing pin, and cylinder pin assembly positive cylinder lock, for example.
    Type: Application
    Filed: June 9, 2010
    Publication date: March 31, 2011
    Applicant: PERSONAL PROTECTIVE EQUIPMENT, LLC
    Inventor: Ronald D. Simpkins
  • Patent number: 7886469
    Abstract: A polymeric revolver including a frame, a cylinder mounted in a rectangular aperture in the frame via a yoke, and a cylinder retaining mechanism is provided. The cylinder retaining mechanism includes multiple assemblies, which lock the yoke in the cylinder-closed position, including: (1) an extractor, a locking bolt and a locking bolt retainer that house an extractor rod spring and engage a ratchet hub driver, hub drive center pin and central pin plate that house a ratchet drive spring; (2) a star-shaped configuration of grooves and ridges on the extractor and the ratchet hub driver, respectively; (3) a rear taper of the locking bolt that engages a concave recess at the axial center of the rounded groove of the locking bolt recess; and (4) an annular ring that engages an inner wall of an annular opening in a breach face of the frame.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: February 15, 2011
    Assignee: Smith & Wesson Corp.
    Inventor: Brett Curry
  • Publication number: 20100192441
    Abstract: A polymeric revolver including a frame, a cylinder mounted in a rectangular aperture in the frame via a yoke, and a cylinder retaining mechanism is provided. The cylinder retaining mechanism includes multiple assemblies, which lock the yoke in the cylinder-closed position, including: (1) an extractor, a locking bolt and a locking bolt retainer that house an extractor rod spring and engage a ratchet hub driver, hub drive center pin and central pin plate that house a ratchet drive spring; (2) a star-shaped configuration of grooves and ridges on the extractor and the ratchet hub driver, respectively; (3) a rear taper of the locking bolt that engages a concave recess at the axial center of the rounded groove of the locking bolt recess; and (4) an annular ring that engages an inner wall of an annular opening in a breach face of the frame.
    Type: Application
    Filed: April 15, 2010
    Publication date: August 5, 2010
    Applicant: SMITH & WESSON CORP.
    Inventor: BRETT CURRY
  • Publication number: 20100192440
    Abstract: A polymeric revolver including a frame, a cylinder mounted in a rectangular aperture in the frame, a cylinder retaining mechanism and a cylinder releasing mechanism is provided. The cylinder retaining mechanism includes two assemblies: (1) an extractor, locking bolt and locking bolt retainer that house an extractor rod spring, and (2) a ratchet hub driver, hub drive center pin and central pin plate that house a ratchet drive spring. The two assemblies are biased toward one another forming a locking engagement of the extractor and the ratchet hub driver. The locking engagement is enhanced by a star-shaped configuration of grooves and ridges on the extractor and ratchet hub driver, respectively. The cylinder releasing mechanism includes a cylinder release lever that actuates the hub drive center pin and ratchet hub driver out of locking engagement with the extractor, and an ambidextrous thumb piece that facilitates access to the cylinder release lever.
    Type: Application
    Filed: April 15, 2010
    Publication date: August 5, 2010
    Applicant: SMITH & WESSON CORP.
    Inventor: Brett Curry
  • Patent number: 7669588
    Abstract: A rotary clip rotation mechanism for an air gun, having a nail for engaging with a nail engagement section provided in the rotary clip and causing rotation of a rotary clip, comprises an L-shaped arm, capable of rotating about an arm shaft, with a muzzle side end opening section formed from a curved surface section; an arm elastic section provided at a position contacting the tip of the curved surface section of the L-shaped arm, a nail support arm provided so as to rotate on a gun rear end side of the L-shaped arm by means of a connecting elastic section, and a nail urged in the direction of the tip end by a nail elastic section provided on a tip of the nail support arm.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: March 2, 2010
    Assignee: Maruzen Company Ltd.
    Inventor: Tetsuo Maeda
  • Patent number: 7562478
    Abstract: A pistol has a forwardly extending cylindrical shaft with a cylindrical bearing surface. A rotatable cylinder is mounted on the bearing surface. A cylindrical chamber in the rotatable cylinder receives a cartridge. A firing pin ring with a firing pin aligned with the chamber is mounted on the bearing surface. A hammer safety lock includes a hole in the firing pin ring with a rearwardly extending pin. A barrel receives the cylindrical shaft. A barrel sleeve is positioned between the barrel and the shaft. A cartridge extraction tool is operable after axial sliding and separation between the cylinder and the cylindrical shaft. The cartridge extraction tool is adapted to be inserted into the chamber of the cylinder from the end remote from the firing pin ring to remove a cartridge.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: July 21, 2009
    Inventor: Laszlo Vastag
  • Patent number: 7523578
    Abstract: A revolver that has firing means arranged so as to substantially raise the resting point of the middle finger of the hand on the handle.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: April 28, 2009
    Assignee: Far League S.R.L.
    Inventor: Emilio Ghisoni
  • Publication number: 20090044436
    Abstract: A revolver with light-weight firing control housing includes a cylinder frame supporting a rotatable cylinder defining a plurality of cartridge-receiving chambers and a firing control housing made of a non-metallic material. The firing control housing attaches to the cylinder frame and supports firing control mechanism components, such as a trigger and a pivotable hammer actuated by the trigger. In one embodiment, the firing control housing may be made of a polymer and the cylinder frame may be metal.
    Type: Application
    Filed: August 1, 2008
    Publication date: February 19, 2009
    Inventor: JOSEPH J. ZAJK
  • Patent number: 7254913
    Abstract: A revolver for firing high velocity ammunition includes a frame, a cylinder, a barrel, and a firing mechanism. The revolver may include one or more of the following, each of which is especially adapted for use in the context of firing high velocity ammunition: spacers for adjusting a barrel-cylinder gap, for eliminating broaching of the rearward surface(s) of the barrel; a forcing cone formed in the rearward opening of the barrel for accommodating deformed projectiles; a reflective surface (e.g., mirrored surface) provided on the cone and/or barrel rearward surfaces, for reducing erosion resulting from using high velocity ammunition; gain-twist rifling in the barrel for a smoother transition to full projectile velocity; a larger diameter, hardened firing pin bushing for minimizing brass flow in the rearward direction; and a front sight assembly that minimizes lateral shift or drift of the sight pin during firing.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: August 14, 2007
    Assignee: Smith & Wesson Corp.
    Inventors: Jason Robert Dubois, Simon Michael Muska, Gary E. Zukowski, John W. Avedisian, Brett Curry
  • Patent number: 7243451
    Abstract: A universal cylinder of a revolver comprises a cylindrical case, this case has apertures for cartridges, executed in the case, and the open zone grooves of a lateral cylindrical surface for input and output cartridges.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: July 17, 2007
    Inventors: Vladimir Gutkin, Galina Gutkin
  • Patent number: 6928763
    Abstract: A mechanism for indexing the movement of a firearm cylinder to load and unload cartridges from a plurality of cartridge-receiving chambers in the cylinder. The firearm may generally comprise a cylinder, a supporting structure rotatably carrying the cylinder and a loading gate cutout. The indexing mechanism may comprise a cylinder indexing member, which in one embodiment may be a stop pin. The cylinder is configured to be stoppingly engaged by the indexing member when the cylinder is rotated in a first direction to align a cartridge-receiving chamber with the loading gate cutout in the frame, thereby creating an indexed position of the cylinder. Preferably, a plurality of indexed positions are created to allow each chamber to be aligned with the loading gate cutout for loading and unloading cartridges. In one embodiment, the cylinder is further freely rotatable in a second direction opposite the first direction without stopping engagement between the cylinder and indexing member.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: August 16, 2005
    Assignee: Sturm, Ruger and Company
    Inventors: Joseph J. Zajk, Jeffrey R. Cornish
  • Patent number: 6658780
    Abstract: The shooting device, such as a revolver, has a housing with a barrel-receiving opening defined therein. A cylinder and a barrel are attached to the housing. The barrel has a rear section with a cylindrical segment that slidably engages the cylindrical segment. A spring has one end attached to the rear section of the barrel and a second opposite end attached to the cylindrical valve for urging the valve against a groove section of the cylinder so there is a tight fit between the valve and the cylinder during the firing of the bullet. This prevents any pressure loss when the bullet is fired.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: December 9, 2003
    Inventor: Aris Papadimas
  • Patent number: 6647654
    Abstract: A removable cylinder for a revolver according to the present invention includes a plurality of cartridge chambers, each appropriately sized to receive a blank cartridge therein. The cartridge chambers are sealed at their distal end to prevent debris from a fired blank cartridge from entering the revolver barrel. The cylinder may further include passages (e.g., vent ports or grooves) in communication with the cartridge chambers to vent exhaust gases released from the blank cartridges in response to revolver actuation. The revolver may further include a laser transmitter assembly to project a laser beam toward a target in response to revolver actuation to simulate firearm operation.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: November 18, 2003
    Assignee: Beamhit, LLC
    Inventors: Mike Iten, Chris Harrison, Stephen P. Rosa, Motti Shechter
  • Patent number: 6634128
    Abstract: A 0.22 caliber long rifle removable conversion system kit for open top frame, black powder, ball and cap colt reproduction and replica revolver—recreation and gallery shooting comprises a barrel nut and a barrel sleeve nut being threaded to mate with a threaded portion of the outside diameter of the barrel sleeve and sized to fit snugly into the inside diameter of the outlet of the pistol barrel. Also included is a firing pin ring assembly comprised of a loading gate subassembly, firing pin subassembly and firing pin ring. Also included is a cartridge cylinder being cylindrical in shape with cartridge apertures configured to mate with and engage the existing rotation hand and locking lug of the pistol frame. Lastly included is a barrel wedge assembly comprising an expanding wedge subassembly and an unloading rod assembly comprising an unloading rod and an unloading rod housing.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: October 21, 2003
    Inventor: Laszlo Vastag
  • Patent number: 6609323
    Abstract: The present invention is directed to a revolver, where headspace is achieved differently and separately from the barrel, where [a cartridge is placed in the cylinder] and where that headspace is a function of caliber and varies per caliber/cylinder. The system of the present invention links a unique barrel and cylinder relationship so that each may be exchanged with the other set on the same frame. A tension ring is used to threadedly engage the interchangeable barrel relative to the interchangeable cylinder and revolver frame such that the predetermined headspace is preserved. And all being fit to differing headspace points within the single revolver frame. Each could be numbered so that confusion of which cylinder with which barrel be reduced.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: August 26, 2003
    Assignee: United States Fire-Arms Manufacturing Company
    Inventor: Douglas F. Donnelly
  • Patent number: 6574898
    Abstract: Revolver frame and barrel assembly including a frame, a barrel shroud carrying a sight and keyed in sight alignment with the frame, and a generally cylindrical barrel having a rifled bore and extending through the barrel shroud and threadably engaged in the frame retaining the shroud in assembly with the frame. An assembly tool engaged with and complementing the rifling grooves in the barrel applies predetermined torque to the barrel to assemble it with the frame.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: June 10, 2003
    Assignee: Smith & Wesson Corp.
    Inventors: Norman Spencer, William T. Oakley, Craig Albert Mariani, Richard Frederick Mikuta, Kevin Richard Fleury, Brett Curry, Richard Anthony Picard, Joseph A. Galarneau, James Valley
  • Patent number: 6481137
    Abstract: In a revolving firearm having a barrel and a rotating cartridge cylinder actuated by an axially slidable pump-action type foregrip, indexing means are provided for converting the back and forth movement of the foregrip into a stepwise rotational movement of the cartridge cylinder for bringing one chamber of the cartridge cylinder after another in axial alignment with the barrel.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: November 19, 2002
    Inventor: Johann Franz Kornberger
  • Publication number: 20020078614
    Abstract: In a revolving firearm having a barrel and a rotating cartridge cylinder actuated by an axially slidable pump-action type foregrip, indexing means are provided for converting the back and forth movement of the foregrip into a stepwise rotational movement of the cartridge cylinder for bringing one chamber of the cartridge cylinder after another in axial alignment with the barrel.
    Type: Application
    Filed: April 2, 2001
    Publication date: June 27, 2002
    Inventor: Johann Franz Kornberger
  • Patent number: 6397506
    Abstract: A single-action revolver can be fired rapidly by relatively unskilled shooters and by shooters with limited manual dexterity. The revolver contains a hammer-cocking assembly having a reciprocating cylinder-actuating rod with a proximate end that passes rearwardly through the respective longitudinal bores of the frame and cylinder to contact the hammer and with a distal end that extends forwardly along the barrel. A shooter can easily fire the revolver rapidly by first moving the cylinder-actuating rod with one hand to cock the hammer and rotate the cylinder, and by then pulling the trigger with another hand to release the hammer and fire the revolver.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: June 4, 2002
    Inventor: William D. Oglesby, Jr.
  • Patent number: 6330761
    Abstract: A removable blast shield for a firearm is presented. The firearm comprises a frame, a barrel affixed to the frame, a receiver having a chamber for receiving a cartridge therein, and the blast shield. The receiver aligns the chamber with the barrel and has a forward end, which is spaced from a rear end of the barrel to provide a gap through which propellant gases from the cartridge pass. The blast shield has a forward portion and a bridging portion. The forward portion of the blast shield engages against a surface of the barrel and a surface of the frame such that the barrel secures the blast shield to the frame. The bridging portion extends rearwardly from the forward portion to bridge the gap. The bridging portion is formed substantially harder than the frame for resisting erosion by the propellant gases.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: December 18, 2001
    Assignee: Smith & Wesson Corp.
    Inventors: Michael S. Duval, Brett Curry, Norman Spencer