CAVITATION CORE OF A FIREARM PROJECTILE
    1.
    发明公开

    公开(公告)号:US20230243629A1

    公开(公告)日:2023-08-03

    申请号:US17638282

    申请日:2020-06-30

    CPC classification number: F42B10/46 F42B10/08

    Abstract: The invention relates to firearm projectiles, primarily for destroying underwater targets in the case of underwater or air-to-water fire. A cavitation core of a firearm projectile results in an increase in target destruction efficiency by virtue of approximating the contour (R) of the cavitation core to the contour of the cavity (W) in the water, increasing the mass of the core and allowing loss of cavitation stability and rolling in a non-uniform (heterogeneous) and compressible water-containing medium.

    FLECHETTE FOR DIRECT FIRE WEAPONS
    2.
    发明申请
    FLECHETTE FOR DIRECT FIRE WEAPONS 有权
    直升机火炬手

    公开(公告)号:US20160363425A1

    公开(公告)日:2016-12-15

    申请号:US14446370

    申请日:2014-07-30

    Abstract: A flechette for use with a gun barrel having a tapered bore with a diameter at the initial bore section greater than the diameter at the emergent bore. The flechette includes a body constructed of a ductile material and having an elongated axis aligned with the axis of the tapered bore when positioned in the load end of the bore. The body also includes a cylindrical bulkhead as well as a bourrelet that are axially spaced from each other along the flechette and have an outside diameter substantially the same as the diameter at the initial bore section of the tapered bore. An elongated boom is attached at the tail end of the body while a penetrator is attached at the forward end of the body. Upon launch, both the bulkhead and bourrelet are compressed radially inward by the bore reduction so that the body is substantially cylindrical upon exit from the discharge end of the bore.

    Abstract translation: 用于枪筒的指示器,其具有在初始孔部分处的直径大于出口孔处的直径的锥形孔。 该收集器包括由延性材料构成的主体,并且当定位在孔的负载端时具有与锥形孔的轴线对准的细长轴线。 主体还包括一个圆柱形隔板以及一个沿着熔断器彼此轴向隔开并且具有与锥形孔的初始孔部分处的直径基本相同的外径的料槽。 细长的吊杆连接在身体的尾端,而穿透器附接在身体的前端。 在发射时,舱壁和舷窗都通过孔径减小而径向向内压缩,使得当从孔的排出端出来时,主体基本上是圆柱形的。

    Sub projectile or flechette launch system

    公开(公告)号:US4210082A

    公开(公告)日:1980-07-01

    申请号:US168504

    申请日:1971-07-30

    Applicant: Jack Brothers

    Inventor: Jack Brothers

    CPC classification number: F42B10/08 F42B12/60 Y10S102/703

    Abstract: An explosive flechette launching system which includes a central core expive driver having stacked coaxially thereabout a plurality of disc plates which have layered and sandwiched therebetween for radial launching a multiplicity of flechettes. In one embodiment, the flechettes are oriented and pointed in a radial direction and each are provided with divergent tail piece which is releasably fitted into a mating recess in a driver piston abutting said explosive driver. The fin assembly is provided with a central bore and is slidably carried by the flechette body so that when disposed in said launching system, the fin assembly is positioned at the pointed end thereof and supported by wedge supports along the fins and intermediate the disc plates. The entire assembly is protectively encapsulated or covered with a thin membrane or skin. The explosive driver is designed to provide or generate a radial plane, high pressure wave for launching the flechettes. In the other embodiment the flechettes are oriented, between the plates, transverse to the direction of flight or side launch to provide a relatively large surface area against which the explosive energy can act.

    Projectile stabilizers, projectiles with stabilizers, and methods of manufacturing

    公开(公告)号:US11821712B2

    公开(公告)日:2023-11-21

    申请号:US17198010

    申请日:2021-03-10

    CPC classification number: F42B10/08 F42B6/003 F42B10/04

    Abstract: A projectile and stabilizer therefor are provided. The sliding stabilizer is used instead of fixed or glued tail feathers, vanes or other fletching as a means for stabilizing projectile flight. The invention improves current projectile technology with reduced assembly labor cost, the elimination of bow clearance issues, improved accuracy with the consistent production of the sliding stabilizer, easy replacement of the stabilizer in the field, and improved projectile storage. A sliding stabilizer is designed to slide along the shaft of a projectile and comprises a circumferentially extending wing and a plurality of fins. In use, the stabilizer is positioned at the front of the projectile prior to launch, and the projectile slides quickly through the stabilizer until secured at a stop position at or near the trailing end of the projectile. An annular arrow fletch and arrow stabilizer are also provided. The annular arrow fletch may be used for; stabilizing arrow flight, providing better clearance and functionality then conventional fixed glued tail feathers. A stabilizer may be used with light emitting diode arrow nocks. The stabilizer may improve arrow shaft stabilization technology with reduced assembly labor cost, the elimination of facial and or face mask interference issues providing more clearance, improved accuracy, repeatable production with the consistent injection mold production of the annular arrow fletch, easy replacement of the annular arrow fletch in the field, and improved arrow storage. An annular arrow fletch may incorporate a metallic contact point, which will work with all light emitting nocks. A design of an annular arrow fletch may be affixed to an arrow by an arrow nock and may comprise an annular wing, a central elongated cylindrical cylinder with a cap and a plurality of fins with micro-groves and a metal contact. In use, the annular arrow fletch is affixed at the aft end of the arrow by an arrow nock prior to launch.

    FEATHERS OF AN ARROW
    8.
    发明申请

    公开(公告)号:US20170350680A1

    公开(公告)日:2017-12-07

    申请号:US15607428

    申请日:2017-05-26

    Applicant: YEON KIM

    Inventor: YEON KIM

    CPC classification number: F42B6/06 F42B6/02 F42B6/04 F42B10/02 F42B10/08

    Abstract: The present invention relates to the improved feathers of an arrow, and more particularly, to the improved feathers of an arrow, which prevent instability of flight caused by a vortex generated during the flight of the arrow by forming a plurality of arrow feathers attached to the arrow, which has a cross section which is a curved surface and integrally forming an auxiliary surface having one surface which is the curved surface with the arrow feather to guarantee stable flight.

    METHOD FOR PACKING FIN-STABILIZED PENETRATORS IN A CARRIER SHELL
    9.
    发明申请
    METHOD FOR PACKING FIN-STABILIZED PENETRATORS IN A CARRIER SHELL 有权
    用于在载体壳中包装稳定稳定的穿孔器的方法

    公开(公告)号:US20130036933A1

    公开(公告)日:2013-02-14

    申请号:US13635599

    申请日:2011-03-10

    Inventor: Christer Thuman

    Abstract: The present invention relates to a method for packing fin-stabilized penetrators (8) in a carrier shell (1), which penetrators (8) comprise a front penetrator part (10) and a rear fin part (9, 9′) comprising fin sides (14, 14′), so that the empty space between the penetrators (8) and problems with the penetrators upon the release of the penetrators (8) from the carrier shell (1) are minimized, wherein the penetrators (8) are packed in groups (7) and are joined together to form larger packing units (6), in which each group (7) is arranged with a centrally located penetrator (8) flanked by at least three outer penetrators (8), which outer penetrators (8) are arranged so that their front penetrator parts (10) lie side to side against the fin sides (14, 14′) of the centrally located penetrator (8). The method is characterized in that the rear fin parts (9, 9′) of the penetrators (8) are made shorter than the front penetrator parts (10) of the penetrators (8), and in that the front penetrator parts (10) are made cylindrical for the distribution of load stresses, upon firing of the carrier shell, from the centrally located penetrator (8) rearwards in the direction of firing via the front penetrator parts (10) of the flanking penetrators (8).

    Abstract translation: 本发明涉及一种用于在载体壳体(1)中包装翅片稳定的穿透器(8)的方法,所述穿透器(8)包括前穿透部分(10)和包括翅片的后翅片部分(9,9') 使得穿透器(8)之间的空白空间和穿透器(8)从载体壳体(1)释放时与穿透器的问题最小化,其中穿透器(8)是 包装在组(7)中并且连接在一起以形成较大的包装单元(6),其中每个组(7)布置有侧面为至少三个外部穿透器(8)的位于中心的穿透器(8),该外部穿透器 (8)被布置成使得它们的前穿透部件(10)相对于位于中心的穿透器(8)的翅片侧面(14,14')一侧到另一侧。 该方法的特征在于,穿透器(8)的后翅片部件(9,9')制成比穿透器(8)的前穿透部件(10)短,并且前穿透部件(10) 被制成圆柱形,用于在穿过侧面穿透器(8)的前穿透部件(10)的方向上从位于中心的穿透器(8)向后方施加载体壳体的载荷应力分布。

    Two-Fin Stackable Flechette Having Two-Piece Construction
    10.
    发明申请
    Two-Fin Stackable Flechette Having Two-Piece Construction 失效
    具有两件式结构的双翅膀可堆叠式折页机

    公开(公告)号:US20120279413A1

    公开(公告)日:2012-11-08

    申请号:US13249719

    申请日:2011-09-30

    CPC classification number: F42B12/362 F42B6/003 F42B10/08 F42B39/007

    Abstract: A flechette has a forward body (20) containing its center of gravity which is connected to a tail section (24). The tail section has a pair of fins (24A, 24B) each having a preselected longitudinal angle and radial angle. When the two fins are viewed from the aft of the flechette, the pair of fins demonstrate a S-shaped orientation. The size, shape and orientation of the pair of fins provide aerodynamic stability to the flechette while allowing the flechette to be stacked with like-shaped flechettes. The two-piece assembly of the flechette easily accommodates the use of different density materials for the respective pieces.

    Abstract translation: 指示器具有包含其重心的前身(20),其连接到尾部(24)。 尾部具有一对翅片(24A,24B),每个翼片具有预选的纵向角度和径向角度。 当从收割机的后部观察两个翅片时,该对翅片呈现S形取向。 一对翅片的尺寸,形状和方向为收割机提供空气动力学稳定性,同时允许卷帘纸以类似形状的薄膜堆叠。 收割机的两件式组件可以容易地适应各种不同密度材料的使用。

Patent Agency Ranking