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61. 发明授权

US5983774A Machine gun 失效
标题翻译：机枪
公开(公告)号：US5983774A
公开(公告)日：1999-11-16
申请号：US813898
申请日：1997-03-07
申请人： Ion Mihaita
发明人： Ion Mihaita
IPC分类号： F41A3/46 , F41A5/18 , F41A19/01 , F41G1/28
CPC分类号： F41A5/18 , F41A19/01 , F41A3/46 , F41G1/28
摘要： A gas-operated firearm having a novel bolt construction that includes a locking roller that delays momentarily the action of the bolt upon the firing of the firearm, such delay permitting the bullet to exit the barrel before the bolt can move. The delay is achieved by tapping a portion of the gas generated by the cartridge only after the bullet passes a gas port in the gun barrel to release the locking roller.
摘要翻译：一种具有新型螺栓结构的气动枪械，其包括锁定辊，该锁定辊在火器点火时暂时延迟螺栓的作用，这样的延迟允许子弹在螺栓可以移动之前离开枪管。延迟通过在子弹穿过枪管中的气体端口以释放锁定辊之后，通过点击由盒产生的气体的一部分来实现。

62. 发明授权

US5682007A Self-regulating linear inertial guidance breech-lock release and cycling mechanism for repeating firearms 失效
标题翻译：自动调节线性惯性引导后膛锁释放和重复火器循环机制
公开(公告)号：US5682007A
公开(公告)日：1997-10-28
申请号：US476350
申请日：1995-06-07
申请人： David R. Dobbins
发明人： David R. Dobbins
IPC分类号： F41A3/46 , F41A3/44
CPC分类号： F41A3/46
摘要： A breech bolt lock-up device for a firearm absorbs linear inertial forces and utilizes the absorbed inertial force to linearly cycle the firearm. The lock-up device includes an inner lock sleeve and an outer lock sleeve. A locking device will releasably lock the inner lock sleeve with the outer lock sleeve. A cam member is axially aligned with the inner lock sleeve and the outer lock sleeve. The cam member is engagable with the locking device for releasing engagement between the inner lock sleeve and the outer lock sleeve. The cam member linearly reciprocates relative to the gun barrel. A cam spring is provided for storing linear inertia energy when the cam member moves forward. A recoil spring will store linear inertia energy when the cam member moves rearwardly.
摘要翻译：用于枪支的后膛螺栓锁定装置吸收线性惯性力并利用吸收的惯性力线性循环火器。锁定装置包括内锁套和外锁套。锁定装置可释放地将内部锁定套与外部锁定套锁定。凸轮构件与内锁套筒和外锁套筒轴向对准。凸轮构件可与锁定装置接合，用于释放内部锁定套筒和外部锁定套筒之间的接合。凸轮构件相对于枪管线性地往复运动。提供凸轮弹簧，用于在凸轮构件向前移动时存储线性惯性能。当凸轮构件向后移动时，反冲弹簧将存储线性惯性能量。

63. 发明授权

US4677898A Hand firearm 失效
标题翻译：手枪
公开(公告)号：US4677898A
公开(公告)日：1987-07-07
申请号：US831154
申请日：1986-02-19
申请人： Satish K. Malhotra
发明人： Satish K. Malhotra
IPC分类号： F41A3/46 , F41D3/00
CPC分类号： F41A3/46
摘要： The breech block of a hand firearm consists essentially of a breech block carrier being displaceable against the force of a return spring, and a breech block being supported for relative movement in the breech block carrier and being traversed by an ignition pin. The barrel of the hand firearm is firmly connected with the stock or similar part thereof. In order to reduce the return speed of the breech block without increasing its mass, the breech block carrier is provided, behind the closing element being longitudinally displaceable in the same, with a latch which is located in the plane of symmetry of the lock and can be displaced transversely to the direction in which the barrel extends. In closed position of the breech block, the latch is in contact, with little play, by means of a rearward oblique face thereof, with a counter face of the stock or the like part. Moveover, the latch and the breech block have faces of equal slope adapted for cooperation as a pair of "inclined planes".
摘要翻译：手枪的后膛块基本上由抵抗复位弹簧的力移动的后膛支架构成，并且后膛块被支撑用于后膛挡块载体中的相对运动并且被点火销横穿。手枪的枪管与原料或其类似部分牢固地连接。为了在不增加其质量的情况下降低后膛块的返回速度，提供了后挡块载体，在闭合元件之后可以在其中纵向移位，其中闩锁位于锁的对称平面中，并且可以横向于筒延伸的方向。在后膛块的关闭位置，闩锁通过其后倾斜面与库存等的相对面接触，几乎不起作用。移动，闩锁和后膛挡块具有适合作为一对“倾斜平面”的相等斜率的面。

64. 发明授权

US4553469A Low-recoil firearm with noncircular guide rod for angularly locating bolt carrier assembly 失效
标题翻译：具有非圆形导杆的低后坐枪，用于角度定位螺栓支架组件
公开(公告)号：US4553469A
公开(公告)日：1985-11-19
申请号：US639526
申请日：1984-08-08
申请人： Maxwell G. Atchisson
发明人： Maxwell G. Atchisson
IPC分类号： F41A3/46 , F41A3/72 , F41A5/18 , F41A11/00 , F41A15/12 , F41A17/46 , F41A19/46 , F41G1/06 , F41D5/10 , F41D11/12
CPC分类号： F41A5/18 , F41A11/00 , F41A15/12 , F41A17/46 , F41A19/46 , F41A3/46 , F41A3/72 , F41A35/02 , F41G1/06
摘要： A locked breach, gas operated long action firearm capable of firing heavy caliber shotgun or rifle shells with substantially reduced recoil. The gas piston and bolt carrier assembly are supported for recoil movement along a single guide rod which extends the entire length of the gun, permitting a longer recoil path resulting in reduced impulse due to recoil. The guide rod has a noncircular or radially-assymmetrical cross-section mating with a corresponding opening in the gas piston, so that the bolt carrier assembly remains in alignment over the entire recoil path. Separate close-bolt and open-bolt embodiments are disclosed, and the open-bolt embodiment is selectively capable of firing either semi-automatic or full-automatic while permitting reliable cartridge feeding from a box or drum magazine.
摘要翻译：一个锁定的违规，气体长时间行动的火器，能够发射重口径的霰弹枪或步枪炮弹，后退力大大减少。气体活塞和螺栓支架组件被支撑用于沿着延伸枪的整个长度的单个导杆的反冲运动，允许更长的反冲路径导致由于后坐而引起的减小的冲击。导杆具有与气体活塞中的对应开口配合的非圆形或径向不对称横截面，使得螺栓承载组件在整个反冲路径上保持对准。公开了单独的闭合螺栓和开放螺栓的实施例，并且开启螺栓实施例可以选择性地能够点燃半自动或全自动，同时允许从盒或滚筒盒中进行可靠的盒输送。

65. 发明授权

US3346982A Bolt assembly for semi-automatic firearms 失效
标题翻译：半自动枪支螺栓组件
公开(公告)号：US3346982A
公开(公告)日：1967-10-17
申请号：US50526365
申请日：1965-10-26
申请人： RHEINMETALL GMBH
发明人： THEODOR LOFFLER , GERHARD FREUDIG
IPC分类号： F41A3/46 , F41A3/64 , F41A3/66
CPC分类号： F41A3/66 , F41A3/46 , F41A3/64

66. 发明授权

US2900877A Recoil-action machine gun 失效
标题翻译：反动机枪
公开(公告)号：US2900877A
公开(公告)日：1959-08-25
申请号：US59030356
申请日：1956-06-08
申请人： SLOAN MCCLENAHAN DOUGLAS
发明人： SLOAN MCCLENAHAN DOUGLAS
IPC分类号： F41A3/46 , F41A3/66 , F41A3/82 , F41A11/00 , F41A13/12 , F41A19/43
CPC分类号： F41A11/00 , F41A3/46 , F41A3/66 , F41A3/82 , F41A13/12 , F41A19/43

67. 发明授权

US2890626A Locking members for a composite breech block 失效
标题翻译：复合后膛块的锁定构件
公开(公告)号：US2890626A
公开(公告)日：1959-06-16
申请号：US58400756
申请日：1956-05-10
申请人： SIG SCHWEIZ INDUSTRIEGES
发明人： RUDOLF AMSLER
IPC分类号： F41A3/46 , F41A3/70 , F41A5/24
CPC分类号： F41A3/70 , F41A3/46 , F41A5/24

68. 发明授权

US1396832A Gun 失效
公开(公告)号：US1396832A
公开(公告)日：1921-11-15
申请号：US30822319
申请日：1919-07-02
申请人： AUTO ORDNANCE CORP
发明人： GRAHAM OLIVER B
IPC分类号： F41A3/46 , F41A3/82 , F41A11/00 , F41A15/14 , F41A17/38 , F41A17/64 , F41A19/34 , F41A29/04
CPC分类号： F41A11/00 , F41A3/46 , F41A3/82 , F41A15/14 , F41A17/38 , F41A17/64 , F41A19/34 , F41A29/04

69. 发明授权

US1340891A Breech-closure 失效
标题翻译：后膛关闭
公开(公告)号：US1340891A
公开(公告)日：1920-05-25
申请号：US20387317
申请日：1917-11-26
申请人： AUTO ORDNANCE CORP
发明人： GRAHAM OLIVER B
IPC分类号： F41A3/46
CPC分类号： F41A3/46

70. 发明授权

US10018433B2 Linear locking barrel system for firearm 有权
公开(公告)号：US10018433B2
公开(公告)日：2018-07-10
申请号：US15406677
申请日：2017-01-14
申请人： Armscor Precision International
发明人： Martin O. Tuason , Frederick E. Craig
IPC分类号： F41A3/00 , F41A3/46 , F41C3/00
CPC分类号： F41A3/46 , F41C3/00
摘要： A linear locking barrel system for a firearm may include a frame, a slide movably mounted on the frame and defining a barrel channel, a barrel at least partially positioned in the barrel channel of the slide and being movable with respect to the frame and slide along a linear path, and a locking member configured to lock movement of the slide with the barrel for at least a portion of rearward recoil movement of the barrel. The locking member has an engaged condition in which the locking member locks the barrel and slide together and a disengaged condition in which the locking member releases the slide from the barrel during rearward recoil movement.

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