Nonrectilinear Breech Block Motion (e.g., Tilting Rotary, Etc.) Patents (Class 89/184)
  • Patent number: 11493292
    Abstract: An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearm's gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pin's annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end. The extractor recess is constructed so that the face of the bolt is round and the adjacent lugs fully supported. The extractor engages approximately 17% more of a seated ammunition cartridge's rim as compared to the prior art AR15/M16 extractor. The result is an improved bolt and bolt carrier which provides for increased operational reliability.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: November 8, 2022
    Assignee: LWRC International LLC
    Inventor: Jesus S. Gomez
  • Patent number: 11092402
    Abstract: Various embodiments for an angled action firearm that counteracts muzzle rise are described. The angled action firearm includes a receiver having a first receiver end and a second receiver end. The receiver has a top surface sloping upwards from the first receiver end to the second receiver end. The angled action firearm further includes a slide moveably coupled to the receiver having a bottom surface opposite that of the top surface of the receiver. The slide has a first slide end and a second slide end, where the angled bottom surface of the slide slopes upward from the first slide end to the second slide end. The angled action of the slide causes downward pressure during recoil counteracting muzzle rise.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: August 17, 2021
    Assignee: GGC Holdings, LLC.
    Inventor: William E. Brown
  • Patent number: 8065950
    Abstract: An automatic pistol essentially consists of an immovable barrel, a breech with a firing pin and a cartridge extractor, a breech frame, a spring-loaded device for the removal of gas with a gas piston and a gas cylinder, a firing mechanism and a magazine. The barrel is fitted with an end piece, which is located in the lower part of the rear end of the barrel. The design of the breech allows for the displacement of its front part downwards, when the breech is in its front end position. The front part of the breech is fitted with side locking lugs. The corresponding locking grooves are located in the cavities on the end piece of the barrel. The gas piston has an opening for ejecting the cartridge casing. In the course of the backward movement, the gas piston unlocks the breech and draws it back. In the forward movement, the breech is carried forward and pushed downwards. The gas cylinder is located at the front part of the barrel and encompasses the barrel. Along the length of the barrel gas ducts are fixed.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: November 29, 2011
    Assignee: Hans Wrage & Co. GmbH
    Inventor: Victor Anatolevich Kaminsky
  • Patent number: 7997183
    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: April 9, 2007
    Date of Patent: August 16, 2011
    Assignee: KRISS Systems SA
    Inventors: Jan Henrik Jebsen, Renaud Kerbrat
  • Patent number: 7726230
    Abstract: The semiautomatic pistol has a rigidly fixed barrel and sights attached thereto. The body of the pistol receives a breechbolt that moves axially in line with the fixed barrel. Cartridges are transferred from the magazine up to the action in the breechbolt, and spent cartridge cases are ejected out of a side eject port disposed on the pistol. Dismounting of the breechbolt is facilitated by a pivotal dismounting post at the rear of the eject port.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: June 1, 2010
    Inventor: Saim Alper Erdem
  • Patent number: 7370567
    Abstract: An improved armored plating system having a series of elongate tubes arranged in parallel fashion to form a protective array. Each tube has a rectilinear cross section with slanted sidewalls so that each tube partially overlaps the following tube and is partially overlapped by the previous tube. As such, the protective array may be placed on a curved surface while having no gaps in protection. The protective array is formed as alternating tubes slide past one another from opposing directions. A series of laminated members and an embossed member are slideably inserted into each tube and layered upon one another.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: May 13, 2008
    Assignee: Rampgate, Ltd.
    Inventors: Dan Jones, Devane Clarke
  • Publication number: 20080083323
    Abstract: An improved armored plating system having a series of elongate tubes arranged in parallel fashion to form a protective array. Each tube has a rectilinear cross section with slanted sidewalls so that each tube partially overlaps the following tube and is partially overlapped by the previous tube. As such, the protective array may be placed on a curved surface while having no gaps in protection. The protective array is formed as alternating tubes slide past one another from opposing directions. A series of laminated members and an embossed member are slideably inserted into each tube and layered upon one another.
    Type: Application
    Filed: March 22, 2005
    Publication date: April 10, 2008
    Inventors: Dan Jones, Devane Clark
  • 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: 6257116
    Abstract: A slide action pistol including a frame; a barrel supported on said frame and having a bore on an axis of the barrel; a handgrip portion of the frame provided with a cavity therein for receiving a magazine; a firing assembly including a trigger, hammer and firing pin arranged in operative relationship; and, a slide having one end engaged with the barrel and an opposite end pivotally connected to the handgrip portion, the slide arranged to pivot upwardly and rearwardly when the pistol is fired.
    Type: Grant
    Filed: July 27, 1999
    Date of Patent: July 10, 2001
    Inventors: Jacob L. Moczijdlower, Vera R. Pini Leitao, Luiz M. Vianna Camargo
  • Patent number: 6112636
    Abstract: A gas-operated pistol which comprises a frame having a handgrip and adapted to receive a magazine. A slide is mounted for alternating longitudinal movement along the frame. A barrel is provided which is able to pivot at its muzzle end and rotate upwards from a locking engagement via locking means with the frame to allow a cartridge to be removed. An actuating means rotates the barrel upwards after the high pressure period has passed. A cylinder is located above the barrel and communicates with the barrel bore via a passage. The action of propellant gases in the cylinder on the piston urges the slide rearwards. This arrangement reduces the effect of felt recoil on the firer when using very powerful cartridges.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: September 5, 2000
    Inventor: Bernard Christian Besselink
  • Patent number: 4569270
    Abstract: The invention concerns an automatic, mass-obturated hand firearm comprising a body (1) with handle (2), a barrel (3) joined to the body, a breech block (4) with guide (5) constituted by the body and with cocking and firing mechanism (7), the guide of the breech block ascending rearward so that the rearward path of motion of the breech block deviates upward from the center-line (8) of the barrel. The purpose is to eliminate the problem of automatic hand firearms that during shooting the barrel tends to rise upwards.As taught by the invention, when the breech block (4) is in its forward position its center of gravity (9) is located forward of the handle (2). The breech block (4) is preferably disposed to have its major part forward of the rear end (10) of the barrel (3). Furthermore, the center of gravity (9) of the breech block (4) is preferably located forward of the rear end (10) of the barrel (3).
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: February 11, 1986
    Inventor: Jali Timari
  • Patent number: 4056038
    Abstract: A semi-automatic sporting rifle, firing high powered center fire cartridges, is easily and quickly convertible to a 22 rimfire rifle without loss of feel or balance. The dual purpose rifle features a short stroke, gas operating system which is rendered inactive when the rifle is converted to 22 rimfire action. In the conversion, a locking bolt assembly and magazine for high powered ammunition are replaced by a non-locking bolt and a combined cartridge adapter and magazine holder for 22 calibre rimfire ammunition. The principal components of the firearm, including barrel, receiver, firing mechanism, action spring, magazine latch, bolt connecting link, charging handle, sights, stock and forearm, are common to both forms of the rifle. The conversion may be accomplished by using only a pointed object, such as a bullet point or ball point pen.
    Type: Grant
    Filed: May 12, 1976
    Date of Patent: November 1, 1977
    Inventor: Hans M. Rath
  • Patent number: 4014247
    Abstract: A gas-operated, magazine fed firearm includes a shell carrier for receiving shells from the magazine and lifting them into chambering position. An integral shell stop and carrier latch lever pivotally mounted in the receiver latches the shell carrier in its lowered, shell-receiving position and releases a single shell from the magazine to be moved onto the shell carrier by the magazine spring. The shell stop lever blocks the following shell from moving onto the shell carrier and releases the shell carrier for transferring the shell to chambering position. The shell stop lever shifts laterally to permit shells to be loaded past the carrier into the magazine from the feeding end.
    Type: Grant
    Filed: November 19, 1974
    Date of Patent: March 29, 1977
    Assignee: Ithaca Gun Company, Inc.
    Inventor: James Tollinger
  • Patent number: 3998126
    Abstract: A delayed blow back bolt action for a firearm includes a bolt and a slide which are movable together in the receiver frame and are disposed for limited movement with respect to one another. The bolt and slide have cooperating camming surfaces which cause a relatively large displacement of the slide in relation to the displacement of the bolt when the forces attendant to the discharge of a round in the firearm are initially applied to the bolt. The bolt is provided with a lug which engages a locking recess in the receiver frame of the firearm, and the lug and recess have cooperating camming surfaces, such that a surface of the recess provides an opposing force to the force generated by the discharge of a round from the firearm, which force is exerted against one end of the bolt. As such a force is supplied to the end of the bolt, the locking lug is forced out of the locking recess, thereby camming the slide in a direction which is along the longitudinal axis of the bolt.
    Type: Grant
    Filed: September 3, 1974
    Date of Patent: December 21, 1976
    Inventor: Ross Rudd