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71. 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。

72. 发明授权

US4398448A Buffered bolt assembly 失效
标题翻译：缓冲螺栓总成
公开(公告)号：US4398448A
公开(公告)日：1983-08-16
申请号：US288828
申请日：1981-07-31
申请人： Clifford E. LaFever
发明人： Clifford E. LaFever
IPC分类号： F41A3/26 , F41D11/12
CPC分类号： F41A3/26
摘要： A buffered bolt assembly is disclosed for use in an automatic weapon. A b is received in a sleeve on a bolt carrier and is movable therein both axially and rotationally. One or more cam pins on the bolt are received in respective cam guides in the sleeve to control the bolt's rotational position as a function of its axial position. The aft end of the bolt is provided with at least one and preferably two aftward-projecting bolt extensions, for which corresponding slots are provided in the aft surface of the sleeve. When the bolt carrier and bolt are in the battery or firing position, the bolt extensions protrude through their respective slots. The bolt extensions are of such a length that during the recoil stroke of the bolt assembly, the aft ends of the bolt extensions are flush with the rear outer surface of the aft wall of the sleeve. When the rearward motion of the bolt carrier is stopped by the collision of the stationary buffer with the aft surface of the sleeve, the bolt extensions impact the buffer simultaneously with the sleeve, decelerating the bolt at the same rate as the bolt carrier. During the following forward stroke, the buffer also accelerates both the bolt and the bolt carrier simultaneously. As a result, the load on the latch and the cam pins is reduced.
摘要翻译：公开了一种用于自动武器的缓冲螺栓组件。螺栓容纳在螺栓承载件上的套筒中，并且可在其中轴向和旋转地移动。螺栓上的一个或多个凸轮销被容纳在套筒中的相应的凸轮引导件中，以根据其轴向位置来控制螺栓的旋转位置。螺栓的后端设置有至少一个并且优选地两个向后突出的螺栓延伸部，其中相应的狭槽设置在套筒的后表面中。当螺栓承载件和螺栓处于电池或点火位置时，螺栓延伸部分突出穿过其相应的槽。螺栓延伸部具有这样的长度，使得在螺栓组件的反冲行程期间，螺栓延伸部的后端与套筒的后壁的后外表面齐平。当固定缓冲器与套筒的后表面碰撞而阻止螺栓承载件的向后运动时，螺栓延伸部与套筒同时冲击缓冲器，以与螺栓承载件相同的速率减速螺栓。在下一个向前行程中，缓冲器同时加速了螺栓和螺栓承载件。结果，闩锁和凸轮销的负载减小。

73. 发明授权

US4024793A Energy absorbing device and detent for constant recoil slide 失效
标题翻译：能量吸收装置和固定反冲式滑块的制动器
公开(公告)号：US4024793A
公开(公告)日：1977-05-24
申请号：US620601
申请日：1975-10-08
申请人： Edward R. Larrison , Ray O. Reade
发明人： Edward R. Larrison , Ray O. Reade
IPC分类号： F41A3/70 , F41A19/64 , F41D11/12
CPC分类号： F41A19/64 , F41A3/70
摘要： A clamp and wedge attachment to fixed and moving components frictionally ages the components which become disengageable upon application of overriding forces. The wedge has an enlarged detachable loading end which fits between two tines of the clamp which acts as flexure springs. This structure eliminates the slide bounce problem encountered in adapting the M39, 20MM Automatic Revolver Cannon to a constant recoil mode of operation.
摘要翻译：与固定和移动部件的夹具和楔形件附接件摩擦地接合在施加覆盖力时可脱开的部件。楔形件具有可放大的可拆卸的装载端，该装载端适合用作弯曲弹簧的夹具的两个尖齿之间。这种结构消除了使M39,20MM自动左轮手枪适应恒定反冲操作模式时遇到的滑动反弹问题。

74. 发明授权

US3886844A Small arm 失效
标题翻译：小ARM
公开(公告)号：US3886844A
公开(公告)日：1975-06-03
申请号：US42053973
申请日：1973-11-30
申请人： STEYR DAIMLER PUCH AG
发明人： KEPPLINGER HANNES , WAGNER KARL
IPC分类号： F41A3/86 , F41A3/94 , F41A25/22 , F41D11/12
CPC分类号： F41A25/22 , F41A3/86 , F41A3/94
摘要： A barrel is fixed in a barrel-carrying member and provided on its outside peripheral surface with a piston and formed with transverse bore means, which communicate with the inside of the barrel and open on the outside peripheral surface thereof forwardly of said piston. An action slide comprises a cylinder, which is spaced around said barrel and defines therewith an annular chamber, which is sealed by said piston and is defined by flow-obstructing means spaced from said piston beyond said transverse bore means. The action slide is capable of a recoil movement relative to said barrel so as to decrease the size of said annular chamber. A counter-recoil spring cooperates with said action slide and tends to move said action slide opposite to the direction of said recoil movement.

75. 发明授权

US3866516A Semi-automatic piston employing a pivotally, slideable member 失效
标题翻译：半自动活塞采用可枢转的，可滑动的构件
公开(公告)号：US3866516A
公开(公告)日：1975-02-18
申请号：US38359273
申请日：1973-07-30
申请人： FRISOLI DAVID M
发明人： FRISOLI DAVID M
IPC分类号： F41A3/06 , F41A3/32 , F41D3/06 , F41D11/12
CPC分类号： F41A3/32 , F41A3/06
摘要： There is disclosed an automatic weapon which utilizes structure providing an improved action. A slide member is coupled to a barrel member. The barrel is rigidly secured to a frame and does not move during firing. The slide is caused to move during recoil such that it pivots and is urged to move a relatively large distance in a short time thus providing an improved retardation action and further compensating for barrel rise during recoil.
摘要翻译：公开了一种使用提供改进动作的结构的自动武器。滑动构件联接到筒构件。枪管牢固地固定在框架上，在发射过程中不会移动。在反冲期间导致滑块移动，使得其在短时间内枢转并且被迫移动相对较大的距离，从而提供改进的延迟动作，并进一步补偿在后座期间的桶升高。

76. 发明授权

US3650177A Device for controlling the firing frequency in automatic firearms 失效
标题翻译：用于控制自动火灾中闪电频率的装置
公开(公告)号：US3650177A
公开(公告)日：1972-03-21
申请号：US3650177D
申请日：1970-07-01
申请人： MAUSER WERKE AG
发明人： HUPP GERHARD , MADER HELMUT
IPC分类号： F41A19/03 , F41D11/12
CPC分类号： F41A19/03
摘要： A device for changing the firing frequency of rapidly firing automatic firearms in which a buffer case attached to the housing of the firearm contains a buffer spring urging the head of the buffer case into the housing of the reciprocating breech block. A hydraulic cylinder is surrounded by a recoil spring and the latter is disposed within the buffer spring and has a cylinder head arranged within the buffer head. A number of radially slidable locking pins in the cylinder head is adapted to be locked to an axial locking bolt on the breech block when the latter moves in one direction in which the two mentioned springs are put under higher tension while the buffer head and cylinder are moved with the breech block in the same direction. The piston and piston rod are stationary and the pressure fluid in the hydraulic cylinder is displaced by the moving cylinder through bores in the piston from one side to the other side thereof until an axially slidable seal closes the bores in the piston. The pressure fluid can now return the one side of the piston only through radial throttling bores in the piston rod which has an axial bore extending through the center of the piston and this causes a delay in the return of the breech block in the other direction. Preferably, an axially adjustable needle valve in the piston rod controls the discharge ends of the radial bores into the axial bore of the piston rod and permits a predetermined continuous change in the firing frequency of the firearm down to a very low number of shots per minute.
摘要翻译：一种用于改变快速点火自动火器的发射频率的装置，其中附接到枪支壳体的缓冲器壳体包含缓冲弹簧，该缓冲弹簧将缓冲器壳体的头部推进到往复式后膛块的壳体中。液压缸被反冲弹簧包围，后者设置在缓冲弹簧内，并具有设置在缓冲头内的气缸盖。气缸盖中的多个可径向滑动的锁定销适于当后者沿一个方向移动时锁定在枪闩上的轴向锁定螺栓上，其中两个所述弹簧处于较高的张力下，而缓冲头和缸是与后膛移动方向相同。活塞和活塞杆是静止的，并且液压缸中的压力流体被移动的气缸通过活塞的一侧的另一侧移动，直到轴向可滑动的密封件关闭活塞中的孔。压力流体现在可以仅通过活塞杆中的径向节流孔返回活塞的一侧，该活塞杆具有延伸穿过活塞中心的轴向孔，并且这导致枪闩在另一个方向返回的延迟。

77. 发明授权

US3635123A Bolt accelerator 失效
标题翻译：螺栓加速器
公开(公告)号：US3635123A
公开(公告)日：1972-01-18
申请号：US3635123D
申请日：1969-04-07
申请人： GEN ELECTRIC
发明人： COLBY RICHARD H
IPC分类号： F41A3/50 , F41A3/78 , F41A5/08 , F41A7/00 , F41A9/01 , F41A9/34 , F41A15/00 , F41A19/06 , F41D1/02 , F41D5/02 , F41D11/12
CPC分类号： F41A5/08 , F41A3/78
摘要： A machine gun is disclosed having a receiver with a cam slot in the wall thereof, a barrel extension riding in said receiver, a bolt riding in said receiver and projecting into said barrel extension and having a control surface, and a bolt accelerator having a pivot element journaled to said barrel extension, a first roller traveling in said receiver cam slot, and a second roller riding on said bolt control surface.
摘要翻译：公开了一种机枪，其具有在其壁中具有凸轮槽的接收器，骑在所述接收器中的枪管延伸器，骑在所述接收器中的螺栓并且突出到所述枪管延伸部中并具有控制表面，以及具有枢轴的螺栓加速器元件，其卡在所述筒延伸部上，第一辊在所述接收凸轮槽中行进，第二辊位于所述螺栓控制表面上。

78. 发明授权

US3566744A Automatic gun receiver combination 失效
标题翻译：自动枪接收机组合
公开(公告)号：US3566744A
公开(公告)日：1971-03-02
申请号：US3566744D
申请日：1969-07-14
申请人： STONER EUGENE
发明人： STONER EUGENE M
IPC分类号： F41A3/78 , F41A5/02 , F41A5/08 , F41A9/37 , F41A19/33 , F41A19/59 , F41A19/64 , F41G1/28 , F41G1/46 , F41D5/02 , F41D11/12
CPC分类号： F41A5/08 , F41A3/78 , F41A5/02 , F41A9/37 , F41A19/33 , F41A19/59 , F41A19/64 , F41G1/28 , F41G1/46
摘要： The automatic gun receiver combination includes a recoiling barrel, bolt and bolt carrier, two ammunition feeding means, recoil assembly and buffer assembly. The recoiling barrel reciprocates axially in the receiver forwardly of the ammunition feeding means. A bolt is reciprocated axially past the feeding means by a recoiling bolt carrier. The bolt is also rotated into and out of a position in which it is locked to the barrel. Two cams extend along the length of the bolt carrier to cooperate with cam followers on each of the two ammunition feeding means, either of which may be selected to feed ammunition into the receiver. The recoil assembly is coupled between the barrel and receiver both for buffering recoil and counterrecoil of the barrel and for accelerating the bolt carrier in recoil relative to the barrel. The buffer assembly at the rear of the receiver both buffers the recoil force of the bolt and bolt carrier and mounts a sear, selectively engageable with the bolt carrier, such that when the sear and bolt carrier are engaged, the resulting interruption of the counterrecoil of the bolt and bolt carrier is buffered.

79. 发明授权

US3554077A Delay blowback mechanism for firearms 失效
标题翻译：延迟吹扫机制
公开(公告)号：US3554077A
公开(公告)日：1971-01-12
申请号：US3554077D
申请日：1969-04-21
申请人： HAROLD A SCHLAPIA JR
发明人： SCHLAPIA HAROLD A JR
IPC分类号： F41A3/54 , F41A3/78 , F41D1/08 , F41D11/12
CPC分类号： F41A3/78 , F41A3/54
摘要： A gun breechblock of less weight than would be required for purely inertial delay of breech opening under blowback action, is subjected to additional delay action derived from compressive bowing of a backup leaf spring which provides an initially high and progressively decreasing resistance to the blowback.

80. 发明专利

IL72107A BREECHBLOCK BUFFER FOR AN AUTOMATIC FIRING WEAPON 未知
公开(公告)号：IL72107A
公开(公告)日：1989-08-15
申请号：IL7210784
申请日：1984-06-14
申请人： OERLIKON BUEHRLE AG
IPC分类号： F41A3/78 , F41A3/94 , F41C27/00 , F41D11/12 , F16F9/28
摘要： A breechblock buffer serves for catching the recoiling breechblock following the firing of a cartridge. This breechblock buffer comprises a buffer piston and a compressible liquid. With the heretofore known breechblock buffers there is provided a container housing a compressed gas. The invention contemplates eliminating the need for such container. Instead of a gas container there is provided a packet or set of plate springs serving as an elastic structure. Furthermore, the breechblock buffer possesses a recoil buffer device. For guiding and sealing the buffer piston, a guide ring is arranged between two sealing rings.

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