公开(公告)号：US07739938B2

公开(公告)日：2010-06-22

申请号：US11856037

申请日：2007-09-15

Applicant: Michael L. Nair ,  John A. Condon

Inventor： Michael L. Nair ,  John A. Condon

IPC: F41A1/04

CPC classification number: B64F1/04 ,  B64C2201/084 ,  F41A21/18 ,  F41B11/62 ,  F41F1/00

Abstract: The launching of an unmanned projectile includes pre-packaging a barrel with a projectile, a pusher cup, and a gas generator. The gas generator generates gas to propel the projectile out of the barrel. A pressure chamber increases a pressure of the gas in the barrel. The pressure chamber comprises a front body portion connected to the gas generator; an aft body portion connected to the front body portion and the gas generator; and a vent sleeve positioned around the front body portion and adapted to provide an aperture through which the gas exits the barrel in order to control a level of gas pressure in the barrel. A triggering of the gas generator causes the pusher cup to push the projectile out of the barrel at a predetermined launch velocity in order to attain a predetermined self-propelled flight trajectory, wherein the triggering causes the pusher cup to exit the barrel.

Abstract translation: 发射无人射弹包括用弹丸预先包装桶，推杯和气体发生器。 气体发生器产生气体以将射弹推出枪​​管。 压力室增加了桶中气体的压力。 压力室包括连接到气体发生器的前主体部分; 连接到前主体部分和气体发生器的后体部分; 以及排气套，其定位在前主体部分周围并且适于提供孔，气体通过该孔离开筒体，以便控制桶中的气体压力水平。 气体发生器的触发导致推动器杯以预定的发射速度将射弹推出筒体，以便获得预定的自推进飞行轨迹，其中触发使推动杯离开枪管。

公开(公告)号：US20060242878A1

公开(公告)日：2006-11-02

申请号：US11270944

申请日：2005-11-10

Applicant: Jason Dubois ,  Simon Muska ,  Gary Zukowski ,  John Avedisian ,  Brett Curry

Inventor： Jason Dubois ,  Simon Muska ,  Gary Zukowski ,  John Avedisian ,  Brett Curry

IPC: F41C3/14

CPC classification number: F41A21/36 ,  F41A3/74 ,  F41A3/76 ,  F41A21/18 ,  F41C3/14 ,  F41G1/02

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.

Abstract translation: 用于发射高速弹药的左轮手枪包括框架，气缸，枪管和击发机构。 左轮手枪可以包括以下中的一个或多个，其中每一个特别适用于在高速弹药发射的情况下使用：用于调节枪管筒间隙的间隔件，用于消除枪管的后表面的拉削 ; 形成在筒的后开口中的用于容纳变形的弹丸的强制锥; 设置在锥体和/或筒后表面上的反射表面（例如，镜面），用于减少使用高速弹药造成的侵蚀; 在桶中增益扭转膛线，以更平滑地过渡到完全的射弹速度; 一个较大的直径，硬化的击球针衬套，用于最小化向后方向的黄铜流量; 以及在射击期间使瞄准器的横向偏移或漂移最小化的前视组件。

公开(公告)号：US06889612B1

公开(公告)日：2005-05-10

申请号：US10745674

申请日：2003-12-29

Applicant: Joey Liaw ,  Kuei-Fu Fan ,  Shi-Xing Chang ,  Shu-Fang Chen

Inventor： Joey Liaw ,  Kuei-Fu Fan ,  Shi-Xing Chang ,  Shu-Fang Chen

IPC: A01M29/20 ,  F41A21/18 ,  F42B4/02 ,  F42B4/04 ,  F42B4/16 ,  F42B5/02 ,  F42B5/26 ,  F42B8/02 ,  F42B8/14 ,  F42B10/26 ,  F42B10/38 ,  F42B14/02

CPC classification number: F42B4/16 ,  F41A21/18 ,  F42B4/02 ,  F42B4/04 ,  F42B5/02 ,  F42B5/26 ,  F42B8/02 ,  F42B8/14 ,  F42B10/26 ,  F42B10/38 ,  F42B12/20

Abstract: A long-distance blast banger including a cartridge loaded with a blast banger made up from plastic material. The blast banger encompasses a sound explosives cup and a delay cup. The sound explosives cup is loaded with a sound explosives agent having components including perchloryl potassium, magnesium powder and aluminum powder. A sufficient sound value is acquired through appropriate compacting of the sound explosives cup, and therefrom realizes uniform shattering of the cup into small fragments that are insufficient to cause injury. Furthermore, at least two helical grooves extending from a bottom to a top of the cartridge are defined on an inner wall thereof, and ear attachments are configured on a base of an outer wall of the blast banger so as to correspond with the helical grooves, thereby engendering a spinning stability effect during flight time of the blast banger, reducing wind resistance, and thus increasing flight range.

Abstract translation: 一种长距离的爆炸风扇，包括装有由塑料材料制成的喷丸的筒。 爆炸声包括一个声音爆炸物杯和延迟杯。 声音爆炸物杯上装有一种具有高氯化钾，镁粉和铝粉等成分的声爆炸剂。 通过声音炸药杯的适当压实获得足够的声音值，从而使杯子均匀地破碎成不足以造成伤害的小碎片。 此外，从盒的底部延伸到顶部的至少两个螺旋槽被限定在其内壁上，并且耳部附件被构造在鼓风机的外壁的基部上以与螺旋槽对应， 从而在爆炸期间产生纺丝稳定性，降低风阻，从而提高飞行范围。

公开(公告)号：US20030037475A1

公开(公告)日：2003-02-27

申请号：US09934614

申请日：2001-08-21

Inventor： Chih-Chen Juan

IPC: F41A021/00

CPC classification number: F41A21/18

Abstract: A lacquer bullet gun barrel having an inner wall, on which a plurality of projections are circularly arranged. The projections are separated by vent grooves and have top surfaces which form a broken circular circumference around a firing path for a lacquer bullet. Thus a reduced contact surface between the lacquer bullet and the inner wall results.

Abstract translation: 一种具有内壁的漆弹枪枪筒，多个突起被圆形布置在其上。 突起通过排气槽分开，并且具有围绕用于漆弹的烧制路径形成断圆形圆周的顶表面。 因此，导致漆子和内壁之间的接触表面减小。

公开(公告)号：US06427373B1

公开(公告)日：2002-08-06

申请号：US09571151

申请日：2000-05-16

Applicant: Wil Schuemann

Inventor： Wil Schuemann

IPC: F41A2100

CPC classification number: F41A21/18

Abstract: The rifling in a barrel of a firearm is modified in proximity to the muzzle to reduce the radial difference between the land diameter and the groove diameter to urge a bullet to expand fully into the grooves and ensure rotation of the bullet about its longitudinal axis and without any lateral velocity component. Preferably, the land diameter is increased to a diameter somewhat less than the groove diameter but in the alternative the groove diameter may be reduced to a diameter somewhat more than the land diameter.

Abstract translation: 在枪口枪口的枪口在枪口附近被修改，以减小土地直径和槽直径之间的径向差异，以促使子弹完全扩展到槽中，并确保子弹围绕其纵向轴线的旋转， 任何横向速度分量。 优选地，平台直径增加到稍小于凹槽直径的直径，但是在替代方案中，凹槽直径可以减小到略大于平台直径的直径。

公开(公告)号：US5765303A

公开(公告)日：1998-06-16

申请号：US723361

申请日：1996-09-30

Applicant: Henry A. Rudkin, Jr. ,  Donald Barker

Inventor： Henry A. Rudkin, Jr. ,  Donald Barker

IPC: F41A21/18 ,  F41A21/00

CPC classification number: F41A21/18 ,  Y10T407/15 ,  Y10T407/23 ,  Y10T82/10 ,  Y10T82/2502 ,  Y10T82/2529

Abstract: Rifling for the barrel of a firearm includes a first gain twist region for increasing the rotational velocity of a bullet as it travels from the breech towards the muzzle end of the barrel, and a second region in which the rifling is of a constant twist so that the bullet exits the muzzle end of the barrel at a constant rotational velocity. The bore defined in the barrel is tapered in a direction from the breech end to the muzzle end so that the diameter of the muzzle opening of the barrel is less than the diameter of the breech opening. The angle of the rifling is variable with the rate of the gain twist of the rifling. The gain twist of the rifling in the barrel is formed by a button, preferably having a sinusoidal shaped periphery, which is pulled through the barrel during the manufacturing process. The smooth periphery of the button prevents shredding of the barrel when the button is twisted at different speeds to provide the variable gain twist of the rifling in different sections of the barrel. In a further aspect of the invention, an apparatus is provided for selectively varying the rotational speed of the button to form the desired gain twist of the rifling during manufacture of the barrel.

Abstract translation: 用于枪械枪的步枪包括第一增益扭转区域，用于当子弹从后枪朝向枪管的枪口端行进时增加子弹的旋转速度，以及第二区域，其中膛线具有恒定的扭转，使得 子弹以恒定的旋转速度离开枪管的枪口端。 在筒体中限定的孔在从后膛端到枪口端的方向上是锥形的，使得枪管的枪口开口的直径小于枪口的直径。 膛线的角度随着膛线的增益扭曲率而变化。 枪管中的膛线的增益扭曲由优选地具有正弦形周边的按钮形成，该按钮在制造过程中被拉过枪管。 当按钮以不同的速度扭转时，按钮的平滑周边防止料筒的破碎，从而在筒的不同部分提供膛线的可变增益扭曲。 在本发明的另一方面，提供了一种装置，用于选择性地改变按钮的旋转速度，以在筒的制造过程中形成期望的膛线增益扭矩。

公开(公告)号：US5337504A

公开(公告)日：1994-08-16

申请号：US1717

申请日：1993-01-07

Applicant: Herbert Krumm

Inventor： Herbert Krumm

IPC: F41A21/18

CPC classification number: F41A21/18

Abstract: The present invention relates to a gun tube having a spin curve with a variable spin angle as well as a rifling force R(x) over the path of the projectile (x) through the gun tube when a projectile is fired, as well as a predetermined caliber d, projectile mass m.sub.G, mass moment of inertia J about the longitudinal axis of the projectile, gas pressure force P(x) on the projectile bottom and projectile velocity v(x). In order to realize, within the framework of manufacturing tolerances, an accurate spin curve corresponding to diverse desired characteristics of the rifling force, it is provided that the rifling force R(x) is determined according toR(x)=R.sub.max R.sub.n (x)where R.sub.max is the maximum rifling force value which is a function of a predetermined final spin angle .beta..sub.E and R.sub.n (x) is a predetermined, standardized rifling force curve with a defined onset of spinning, a defined initial spin angle and a defined spin profile, with the development of the spin on the caliber diameter being determined from the following differential equation: ##EQU1## and from R.sub.max for a given final spin angle .beta..sub.E.

Abstract translation: 本发明涉及一种具有可变旋转角的旋转曲线的枪管以及在射弹射出时通过枪管的射弹（x）的路径上的膛力R（x），以及 预定口径d，弹丸质量mG，关于弹丸纵轴的质量惯性矩J，弹丸底部的气压力P（x）和射弹速度v（x）。 为了在制造公差的框架内实现对应于膛线力的不同期望特性的精确的自旋曲线，提供了根据R（x）= RmaxRn（x）确定膛力R（x） 其中Rmax是作为预定最终自旋角βE的函数的最大步枪力值，并且Rn（x）是具有确定的旋转开始，定义的初始旋转角和限定的旋转轮廓的预定的标准化膛线力曲线 随着径向直径的旋转的发展由以下微分方程确定：对于给定的最终旋转角β，从＆lt; IMAGE＆gt;和Rmax确定。

公开(公告)号：US5191165A

公开(公告)日：1993-03-02

申请号：US769258

申请日：1991-10-01

Applicant: Leif Oskarsson ,  Sigge Andersson ,  Bengt Pettersson

Inventor： Leif Oskarsson ,  Sigge Andersson ,  Bengt Pettersson

IPC: B29C53/82 ,  B29C70/08 ,  B29C70/56 ,  F41A21/02 ,  F41A21/18

CPC classification number: F41A21/18 ,  B29C53/821 ,  B29C70/083 ,  B29C70/085 ,  B29C70/56 ,  F41A21/02

Abstract: The disclosure relates to a method of producing rifled, non-metallic barrels of composite material in the form of a fiber-reinforced thermosetting matrix for rocket and grenade launcher ordnance, and barrels produced in accordance therewith. The characterizing feature of the present invention is that this results in barrels with the same fiber content in both the lands of the barrel rifling and in its rifling grooves which has been realized in that a porous fluffy mat with a high capacity to absorb the matrix material is employed in the rifled portion of the barrel.

公开(公告)号：US4924614A

公开(公告)日：1990-05-15

申请号：US710981

申请日：1985-03-12

Applicant: Dietrich Hoffmann ,  Harald Weisser

Inventor： Dietrich Hoffmann ,  Harald Weisser

IPC: F41A21/18

CPC classification number: F41A21/18

Abstract: The invention discloses a gun barrel with a novel pattern of a rifling curve. The latter proceeds at start of motion from the parabolic curve y=A+Bx+Cx.sup.2 and is supplemented with a constant D, to which is added a freely selectable exponent =d. Due to the freely selected exponent as parameter the ridge force maximum can be displaced at almost equal level between the start of motion and the barrel mouth. At the barrel mouth the ridge force drops to a minimum.

Abstract translation: 本发明公开了一种具有膛线曲线的新型图案的枪管。 后者从抛物线曲线y = A + Bx + Cx2开始运动，并补充有常数D，向其中添加可自由选择的指数= d。 由于自由选择的指数作为参数，脊力最大值可以在运动开始和桶口之间几乎相等的水平位移。 在桶口处，脊力下降到最小。

公开(公告)号：US4353181A

公开(公告)日：1982-10-12

申请号：US900484

申请日：1978-04-27

Applicant: John S. Pedgonay

Inventor： John S. Pedgonay

IPC: F41A21/18 ,  F41F17/10

CPC classification number: F41A21/18

Abstract: A rifled gunbarrel has stepped relief narrowing width of lands on the sides which normally transmit torque to projectiles, the narrowing extending about one projectile length to the muzzle for isolating the influence of torsional relaxation of gunbarrel, which is normally a trajectory-perturbing factor on projectile emergence, while continuing radial contact for projectile guidance along the gunbarrel axis as the gunbarrel unwinds.

Abstract translation: 一个膛线枪膛具有阶梯式的减小宽度的两侧的通常将扭矩传递到射弹的侧面，狭窄延伸大约一个射弹长度到枪口，以隔离枪管的扭转松弛的影响，这通常是射弹的轨迹扰动因素 随着枪管退出，沿着枪支轴线的射弹引导继续径向接触。