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公开(公告)号：US2490787A
公开(公告)日：1949-12-13
申请号：US70970946
申请日：1946-11-14
发明人： DIXON PAUL H
IPC分类号： F41A3/78
CPC分类号： F41A3/78
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公开(公告)号：US11187478B2
公开(公告)日：2021-11-30
申请号：US16320330
申请日：2017-07-04
申请人： Thomas Weinland
发明人： Thomas Weinland
IPC分类号： F41A5/10 , F41A3/78 , F41A3/86 , F41A25/02 , F41A3/84 , F41A5/02 , F41A5/04 , F41A3/80 , F41A25/14 , F41A25/06 , F41A3/94
摘要： A barreled firearm having a mass-locked breechblock and a recoil-damping element which is connected on one side to a frame assembly and on another side to a barrel assembly including a barrel. A housing part of the barrel assembly is mounted in the frame assembly in an axially slidable manner. A support element stationary relative to the barrel is mounted in a breechblock housing or in the frame assembly in an axially slidable manner. Alternatively, a support element stationary relative to the frame assembly is mounted in a breechblock housing in an axially slidable manner. The breechblock housing is guided by the frame assembly in an axially slidable manner and the breechblock housing is supported by the support element by means of a spring element. This design absorbs or reduces recoil when a shot is fired from the barreled firearm.
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公开(公告)号：US10458732B2
公开(公告)日：2019-10-29
申请号：US15132801
申请日：2016-04-19
申请人： NEMO Arms, Inc.
发明人： Daniel R. Neitzling
摘要： A semi-automatic or automatic rifle comprising a barrel attached to and upper receiver and including a compressible bolt carrier extension system. The compressible bolt carrier extension system includes a bolt carrier, an extension spring, two pins, and a reciprocation bolt carrier extension piece. As a whole, the compressible bolt carrier extension system makes possible the use of elongated upper and lower receivers to be used for chambering long-action or other center fire cartridges for use with AR rifles such as the M-16, and M4 etc., eliminating the need for any buffer or buffer tubes other than those commercially available. A further advantage of the compressible bolt carrier extension system is the reduction of felt recoil as the system fully loads during the recoil stroke as it pushes against the buffer absorbing additional recoil energy. The system can be incorporated into firearms using a variety of cartridges.
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公开(公告)号：US09945625B2
公开(公告)日：2018-04-17
申请号：US15156625
申请日：2016-05-17
发明人： John Kokinis , Paul Gettings , Daniel Fisher
摘要： A short-length, belt fed machine gun for convenient use includes: (A) a receiver having a length in the range of about 17.75 inches to about 20.3 inches, (B) a barrel assembly, and (C) a gas cycling assembly. A gas port of the barrel assembly has a width of between about 0.063 inches and 0.200 inches. The distance between a center of the gas port and the breach of the barrel is between about 7.605 inches and about 9.395 inches. The gas cycling assembly features a unique polymer kinetic energy dampener assembly located longitudinally rearward of the operating rod, which is useful in achieving a desired cycle rate of the gun (e.g., about 600 rounds per minute (RPM)) and in minimizing muzzle climb. A unique mounting bushing selectively, removably mounts to the gas cylinder in order to achieve a shortened gun with many of the advantages of conventional longer weapons.
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公开(公告)号：US09612066B2
公开(公告)日：2017-04-04
申请号：US14760542
申请日：2014-01-14
申请人： Kriss Systems SA
摘要： Firearm comprising a projectile barrel (15), a firing chamber body (16) fixed to the barrel, a breech mechanism (12) for loading a projectile in the firing chamber and ejecting the spent cartridge from the firearm after detonation, a mobile bolt (1), and a receiver structure (13) that supports and guides the mobile bolt. The mobile bolt comprises lateral bearings projecting laterally from opposite sides of the bolt, a first pair of lateral bearings (4, 4′) positioned towards a front portion of the bolt and a second pair of the lateral bearings (10, 10′) positioned towards a rear portion of the bolt. The receiver structure comprises sidewalls (2, 2′) each have bolt bearing raceway grooves (3, 3′) slidably receiving and guiding the lateral bearings of the bolt, wherein a profile of a first portion (3a) of the bolt bearing raceway groove defines a non-constant height (H(y)) between upper and lower guide edges (18, 19) that varies as a function of the distance (y) from the firing chamber body (16), said profile comprising a velocity control portion with a slope (P) configured to impart a braking effect on the bolt during its sliding movement to slow down the rate of fire.
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公开(公告)号：US20160245608A1
公开(公告)日：2016-08-25
申请号：US15001059
申请日：2016-01-19
申请人： Outlander LLC
发明人： STEVE HAYES , ROY CHESTER
摘要： A conversion device for converting a firearm designed to fire a cartridge of a certain size and caliber to another size and caliber cartridge is disclosed. In some embodiments, the conversion device is suitable for converting an AR-15 type firearm to be able to fire .22 caliber cartridges. Disclosed embodiments of the conversion device 100 may comprise an appropriately sized chamber insert 1 to fit in the chamber of the firearm, a bolt 2, an extractor 4, extractor plunger 3, extractor spring 5, firing pins 6, firing pin springs 9, a bolt spring rod 10 and block 11, a bolt return spring 12, slide rails 14, lock rings 17, and lock pins 15.
摘要翻译： 公开了一种转换装置，用于将设计成将一定尺寸和口径的盒子的火焰转换成另一尺寸和口径筒的枪械。 在一些实施例中，转换装置适用于转换AR-15型枪支以能够射出口径的筒。 转换装置100的公开的实施例可以包括适当尺寸的腔室插入件1，以装配在枪支的腔室中，螺栓2，提取器4，提取器柱塞3，抽出器弹簧5，击发销6，击发弹簧9， 螺栓弹簧杆10和块11，螺栓复位弹簧12，滑轨14，锁定环17和锁定销15。
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公开(公告)号：US20150354910A1
公开(公告)日：2015-12-10
申请号：US14760542
申请日：2014-01-14
申请人： Kriss Systems SA
摘要： Firearm comprising a projectile barrel (15), a firing chamber body (16) fixed to the barrel, a breech mechanism (12) for loading a projectile in the firing chamber and ejecting the spent cartridge from the firearm after detonation, a mobile bolt (1), and a receiver structure (13) that supports and guides the mobile bolt. The mobile bolt comprises lateral bearings projecting laterally from opposite sides of the bolt, a first pair of lateral bearings (4, 4′) positioned towards a front portion of the bolt and a second pair of the lateral bearings (10, 10′) positioned towards a rear portion of the bolt. The receiver structure comprises sidewalls (2, 2′) each have bolt bearing raceway grooves (3, 3′) slidably receiving and guiding the lateral bearings of the bolt, wherein a profile of a first portion (3a) of the bolt bearing raceway groove defines a non-constant height (H(y)) between upper and lower guide edges (18, 19) that varies as a function of the distance (y) from the firing chamber body (16), said profile comprising a velocity control portion with a slope (P) configured to impart a braking effect on the bolt during its sliding movement to slow down the rate of fire.
摘要翻译： 火器包括一个弹丸筒（15），一个固定在镜筒上的一个射出腔体（16），一个用于将射弹装载到射出腔中的后枪机构（12），以及在引爆之后从枪支弹出废墨盒 1）和支撑并引导移动螺栓的接收器结构（13）。 移动螺栓包括从螺栓的相对侧向侧面突出的侧向轴承，朝向螺栓的前部定位的第一对横向轴承（4,4'）和定位在第二对侧向轴承（10,10'）的第二对侧向轴承 朝向螺栓的后部。 接收器结构包括侧壁（2,2'），每个侧壁具有可滑动地接收和引导螺栓的侧向轴承的螺栓轴承滚道槽（3,3'），其中螺栓轴承滚道槽的第一部分（3a） 限定了根据距离燃烧室主体（16）的距离（y）变化的上和下引导边缘（18,19）之间的非恒定高度（H（y）），所述轮廓包括速度控制部分 斜坡（P）被配置为在其滑动运动期间在螺栓上施加制动作用以减慢火焰的速度。
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公开(公告)号：US09207032B2
公开(公告)日：2015-12-08
申请号：US14230302
申请日：2014-03-31
申请人： Smith & Wesson Corp.
发明人： Brett Curry
摘要： To prevent inertial forces from inadvertently releasing the slide of a semi-automatic pistol into battery, a slide stop retention mechanism is mounted on the frame. A finger extends from the mechanism and pivots under the force of a biasing spring into engagement with the slide stop when the slide is in the open position. The finger supports the slide stop. A force applied to the slide stop, either manually or via a cam on the slide when the slide is pulled back and released, will move the finger out of its supporting position and allow the slide to move to battery.
摘要翻译： 为了防止惯性力不经意地将半自动手枪的滑块释放到电池中，在框架上安装滑动止动保持机构。 手指从机构延伸并且在滑动件处于打开位置时，在偏置弹簧的作用下枢转，以与滑动止动件接合。 手指支撑滑块停止。 当幻灯片被拉回并释放时，手动或通过幻灯片上的凸轮施加到滑块上的力将使手指移出其支撑位置，并允许滑块移动到电池。
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29.发明申请公开(公告)号：US20150345881A1
公开(公告)日：2015-12-03
申请号：US14662487
申请日：2015-03-19
申请人： ROBERT IRVIN
发明人： ROBERT IRVIN
摘要： A buffer tube for firearms, including assault rifles, carbines, shotguns, and other rifles is disclosed. The floating buffer tube comprises a recoil mitigation mechanism, including a helical spring or an elastic or viscous energy absorption device, and a buttstock mounting bracket mounted outside the buffer tube. The buttstock mounting bracket can rotate relative to the buffer tube, which changes the axial angle of the buttstock relative to the firearm. The angle can be locked under an expansive force by forcing a bolt or pin into grooves to select the proper axial angle of the buttstock relative to the firearm in the field without the user having to disarm himself to perform the angle change.
摘要翻译： 公开了一种用于枪支的缓冲管，包括突击步枪，卡宾枪，霰弹枪和其他步枪。 浮动缓冲管包括反冲减轻机构，包括螺旋弹簧或弹性或粘性能量吸收装置，以及安装在缓冲管外部的对接安装支架。 对接安装支架可以相对于缓冲管旋转，从而改变对接杆相对于枪支的轴向角度。 通过将螺栓或销插入槽中可以在膨胀力下锁定角度，以在现场中选择相对于枪支的对接杆的适当轴向角度，而不需要用户解除自身以执行角度变化。
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公开(公告)号：US09103611B2
公开(公告)日：2015-08-11
申请号：US13569942
申请日：2012-08-08
申请人： Daniel R. Neitzling
发明人： Daniel R. Neitzling
摘要： A semi-automatic or automatic rifle comprising a barrel attached to and upper receiver and including a compressible bolt carrier extension system. The compressible bolt carrier extension system includes a bolt carrier, an extension spring, two pins, and a reciprocation bolt carrier extension piece. As a whole, the compressible bolt carrier extension system makes possible the use of elongated upper and lower receivers to be used for chambering long-action or other center fire cartridges for use with AR rifles such as the M-16, and M4 etc., eliminating the need for any buffer or buffer tubes other than those commercially available. A further advantage of the compressible bolt carrier extension system is the reduction of felt recoil as the system fully loads during the recoil stroke as it pushes against the buffer absorbing additional recoil energy. The system can be incorporated into firearms using a variety of cartridges.
摘要翻译： 一种半自动或自动步枪，包括一个连接到上接收器的筒体，并包括一个可压缩的螺栓承载件延伸系统。 可压缩螺栓承载件延伸系统包括螺栓承载件，延伸弹簧，两个销和往复螺栓承载件延伸件。 总的来说，可压缩的螺栓承载架延伸系统使得可以使用细长的上部和下部接收器来放置用于与诸如M-16和M4等的AR步枪一起使用的长效或其它中心消防盒， 不需要任何可商购的缓冲管或缓冲管。 可压缩螺栓托架延伸系统的另一个优点是当系统在反冲冲程期间完全负载时减小毛毡反冲，因为它推动缓冲器吸收额外的反冲能量。 该系统可以使用各种墨盒并入火器。
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