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41. 发明申请

US20100126372A1 Supercavitating Water-Entry Projectile 有权
标题翻译：超级入水射弹
公开(公告)号：US20100126372A1
公开(公告)日：2010-05-27
申请号：US12275630
申请日：2008-11-21
申请人： Antonio Paulic , Alex Fu
发明人： Antonio Paulic , Alex Fu
IPC分类号： F42B10/22
CPC分类号： F42B10/22 , F42B10/38 , F42B10/46
摘要： A water-entry projectile capable of supercavitation and spin-stabilization comprises a forward section having one or more forward stepped sections, each stepped section being symmetrical in rotation about an axis and having a radius at an aft end that is different from a radius of a front end of an adjacent rearwardly located stepped section; an aft section having an aft stepped section, the aft stepped section being symmetrical in rotation about the axis and having a maximum radius larger than a maximum radius of the forward section; and wherein the aft section is located substantially aft of a center of gravity of the projectile.
摘要翻译：能够进行超空化和自旋稳定化的入水射弹包括具有一个或多个前部阶梯部分的前部部分，每个阶梯部分围绕轴线旋转对称，并且在后端具有与半径不同的半径相邻的后向定位的台阶部分的前端; 具有后段部的后段，所述后台阶部分围绕所述轴线旋转对称，并且具有大于所述前部的最大半径的最大半径; 并且其中所述后部基本上位于所述射弹的重心的后方。

42. 发明授权

US07484459B2 Firearm ammunition projectile 失效
标题翻译：枪支弹药弹
公开(公告)号：US07484459B2
公开(公告)日：2009-02-03
申请号：US10531490
申请日：2003-10-15
申请人： Christophe Fichot , Pierre Deloume , Jean-Jacques Dorrzapf
发明人： Christophe Fichot , Pierre Deloume , Jean-Jacques Dorrzapf
IPC分类号： F42B10/22 , F42B10/24
CPC分类号： F42B10/52 , F42B10/22
摘要： An ammunition projectile for a firearm comprising a projectile having a nose and a cap which is designed to slow down sufficiently, when traveling through air so as to be stopped by a bulletproof vest while the projectile still has a precise and reliable trajectory. The projectile (10) has a generally truncated nose (11) and a cylindrical cap (12). The nose (11) is provided with a central, essentially circular flat section (13) which can be made larger or smaller and which has a diameter of between 10 and 50% of the diameter of the projectile at the base of the nose (11) or the cap (12). The lateral face of the truncated nose (11) is provided with five indentations (14) which are disposed symmetrically in relation to axial planes and which are obtained by one of stamping, milling, or some other suitable machining method.
摘要翻译：一种用于枪支的弹药弹，包括具有鼻子和帽子的弹丸，其被设计成在穿过空气时被充分减速，以便在弹丸仍具有精确和可靠的轨迹的同时由防弹背心停止。射弹（10）具有大致截头的鼻部（11）和圆柱形帽（12）。鼻子（11）设置有中心的，基本上圆形的平坦部分（13），其可以被制成更大或更小，并且其直径在鼻子底部处的射弹直径的10％至50％）或帽（12）。截头鼻（11）的侧面设置有五个凹口（14），这五个凹口（14）相对于轴向平面对称地设置，并且通过冲压，铣削或一些其它合适的加工方法之一获得。

43. 发明授权

US5932836A Range limited projectile using augmented roll damping 失效
标题翻译：范围有限弹丸使用增强滚动阻尼
公开(公告)号：US5932836A
公开(公告)日：1999-08-03
申请号：US926153
申请日：1997-09-09
申请人： Charles O. White
发明人： Charles O. White
IPC分类号： F42B8/12 , F42B10/22 , F42B10/26 , F42B10/48 , F42B10/54
CPC分类号： F42B10/22 , F42B10/48 , F42B10/54
摘要： A training projectile that utilizes flutes or flats to augment roll damping characteristics and thereby cause the projectile to crossover into a gyroscopically unstable trajectory pattern at a predetermined time. Prior to the crossover, the training projectile maintains a gyroscopically stable trajectory, which enables extrapolation to ascertain the trajectory of a non-training projectile that does not have an augmented roll damping section. The unstable trajectory pattern substantially reduces the distance the training projectile can traverse, thereby reducing the amount of area required for a training range.
摘要翻译：一种训练抛射体，其利用凹槽或平面来增加滚动阻尼特性，从而使射弹在预定时间内交叉成陀螺不稳定的轨迹图案。在交叉之前，训练抛射体保持陀螺稳定的轨迹，这使得外推能够确定没有增加的滚动阻尼部分的非训练射弹的轨迹。不稳定的轨迹图形大大减少了训练射弹可以穿过的距离，从而减少训练范围所需的面积。

44. 发明授权

US4789117A Bodies with reduced base drag 失效
标题翻译：减少基础阻力的机构
公开(公告)号：US4789117A
公开(公告)日：1988-12-06
申请号：US947164
申请日：1986-12-29
申请人： Robert W. Paterson , Michael J. Werle , Walter M. Presz, Jr.
发明人： Robert W. Paterson , Michael J. Werle , Walter M. Presz, Jr.
IPC分类号： B64C21/10 , B62D35/00 , B64C23/00 , F04D29/68 , F42B10/22 , B64C1/38
CPC分类号： F42B10/22 , B62D35/00 , B64C23/00
摘要： A body adapted to move downstream through a fluid has a downstream extending smooth surface terminating at a blunt base. A plurality of adjacent U-shaped, downstream extending troughs in the smooth surface intersect the blunt base to form trough outlets. The troughs are appropriately spaced apart, sized and configured to flow full over their entire length and cause fluid to flow into the space immediately behind the blunt base, thereby reducing base drag on the body.

45. 发明授权

US4776535A Convoluted plate to reduce base drag 失效
标题翻译：旋转板减少基础阻力
公开(公告)号：US4776535A
公开(公告)日：1988-10-11
申请号：US117770
申请日：1987-11-05
申请人： Robert W. Paterson , Michael J. Werle , Walter M. Presz, Jr.
发明人： Robert W. Paterson , Michael J. Werle , Walter M. Presz, Jr.
IPC分类号： B64C21/10 , B62D35/00 , B62D37/02 , B64C23/00 , F42B10/22 , B64C1/38
CPC分类号： F42B10/22 , B62D35/00 , B64C23/00
摘要： A body adapted to move downstream through a fluid has a downstream extending smooth surface terminating at a blunt base. Extending transversely across the smooth surface and disposed upstream of the blunt base is a thin, downstream extending plate closely spaced from the smooth surface. At least the downstream end portion of the plate is convoluted such that its downstream end is wave shaped. The convolutions are designed to generate pairs of counterrotating vortices which delay boundary layer separation from the smooth surface and cause fluid to flow into the space immediately behind the blunt base, reducing base drag on the body. The device generates very little drag of its own.
摘要翻译：适于通过流体向下游移动的主体具有终止于钝底的下游延伸的平滑表面。横向延伸穿过光滑表面并设置在钝底部的上游是与光滑表面紧密隔开的薄的下游延伸板。板的至少下游端部分被卷曲，使得其下游端是波浪形的。卷积被设计成产生成对的逆旋转涡流，其延迟边界层与光滑表面的分离，并使流体流入紧邻基底的空间中，从而减少身体上的基底阻力。该设备自身产生很小的拖动。

46. 发明授权

US4700630A Ammunition round 失效
标题翻译：弹药圆
公开(公告)号：US4700630A
公开(公告)日：1987-10-20
申请号：US902297
申请日：1986-08-29
申请人： Leroy J. Sullivan
发明人： Leroy J. Sullivan
IPC分类号： F42B30/04 , F42B7/10 , F42B10/22 , F42B14/02 , F42B14/06 , F42B11/00
CPC分类号： F42B14/064 , F42B10/22 , F42B14/02 , F42B7/10
摘要： In an ammunition round a substantially full bore diameter bullet has a plurality of elongate grooves either helically formed or parallel with the longitudinal axis of the bullet and a sabot which has a body and fingers which engage with the grooves and seal the bullet in a casing, the sabot having a slightly larger diameter than the bullet so that the sabot is engraved by the rifling slots in the barrel through which the round is to be fired, in order to rotate the bullet. In alternative constructions the grooves contain elongate elements or a plurality of spherical elements to prevent the conically tapered slug or bullet from tilting or cocking in the barrel after firing.

47. 发明授权

US4644866A Ammunition round 失效
标题翻译：弹药圆
公开(公告)号：US4644866A
公开(公告)日：1987-02-24
申请号：US621735
申请日：1984-06-18
申请人： Leroy J. Sullivan
发明人： Leroy J. Sullivan
IPC分类号： F42B30/04 , F42B7/10 , F42B10/22 , F42B14/02 , F42B14/06 , F42B11/00
CPC分类号： F42B14/064 , F42B10/22 , F42B14/02 , F42B7/10
摘要： In an ammunition round a substantially full bore diameter bullet has a plurality of elongate grooves either helically formed or parallel with the longitudinal axis of the bullet and a sabot which has a body and fingers which engage with the grooves and seal the bullet in a casing, the sabot having a slightly larger diameter than the bullet so that the sabot is engraved by the refling slots in the barrel through which the round is to be fired, in order to rotate the bullet. In alternative constructions the grooves contain elongate elements or a plurality of spherical elements to prevent the conically tapered slug or bullet from tilting or cocking in the barrel after firing.
摘要翻译：在弹药周围，基本上全径径的子弹具有多个细长槽，其与子弹的纵向轴线螺旋形成或平行，并且具有主体和指状物，其与槽啮合并将子弹密封在壳体中，该膛体具有比该子弹稍大的直径，使得该膛座被圆筒中的反射槽刻划，以便旋转该子弹。在替代构造中，凹槽包含细长元件或多个球形元件，以防止圆锥形锥形或子弹在点火之后在筒中倾斜或翘起。

48. 发明授权

US1521406A Projectile 失效
公开(公告)号：US1521406A
公开(公告)日：1924-12-30
申请号：US49484021
申请日：1921-08-24
申请人： BOWN TAYLOR LESLIE
发明人： BOWN TAYLOR LESLIE
IPC分类号： F42B10/22
CPC分类号： F42B10/22

49. 发明授权

US1428683A Projectile 失效
标题翻译：射弹
公开(公告)号：US1428683A
公开(公告)日：1922-09-12
申请号：US24786018
申请日：1918-08-01
申请人： KENNEDY DOUGAN
发明人： KENNEDY DOUGAN
IPC分类号： F42B10/22 , F42B14/06
CPC分类号： F42B10/22 , F42B14/06

50. 发明授权

US11549789B2 Optimized subsonic projectiles 有权
公开(公告)号：US11549789B2
公开(公告)日：2023-01-10
申请号：US16433821
申请日：2019-06-06
申请人： The United States of America, as represented by the Secretary of the Navy
发明人： Lucius A. Taylor , Joseph T. Burkart
IPC分类号： F42B5/02 , F42B33/00 , F42B10/24 , F42B10/00 , F42B10/32 , F42B10/44 , F42B10/38 , F42B10/22 , F41A1/00 , F42B12/74
摘要： Various embodiments of optimized subsonic projectiles are provided. For example, one exemplary subsonic projectile can include an elliptical nose cone, a cylindrical body and a boattail with various design features that can be used in a subsonic ammunition cartridge where the subsonic projectile is stabile throughout at least a segment of a flight allowing for better accuracy, maintaining low drag, maximizing range and achieving desired performance while ensuring the projectile stays below the speed of sound and lowering a noise profile of projectile and a launcher firing the projectile.

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