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    • 13. 发明授权
    • Morris 80 plastic tour bolt
    • US10845170B2
    • 2020-11-24
    • US16299353
    • 2019-03-12
    • Elgie Allen Morris
    • Elgie Allen Morris
    • F42B6/06F42B10/04F42B6/04
    • F42B6/06F42B6/04F42B10/04
    • When combined with a metal point, this ten inch plastic pistol crossbow bolt is designed to extend past the barrel of a pistol crossbow so it can be used for recreational shooting, competition shooting, small game hunting, pistol crossbow fishing and pistol crossbow scuba fishing. The main fault of the standard pistol crossbow bolt is they are less than seven inches in length and do not extend past the end of a pistol crossbow barrel. Therefore, their use is limited to target points and recreational shooting only. Other faults of the standard short pistol crossbow bolts are their high travel speed. They are very difficult to be viewed in flight, causing most bolts to be lost after one use. Also, their irretrievability from any commonly used target. Therefore, they cannot be found and scored in any type of shooting competition. This ten inch bolt is a solid one piece unit made of a strong but, light weight plastic compound. It has a NOCK to securely hold the bow string in place. Most bolts do not have a nock. it has two FLAT WINGS for elevation stabilizing which creates an accurate and stable bolt flight. No other bolt has this type of flat wings. These features allow this bolt to be easily viewed in flight. This also allows this bolt to be used for competition shooting because these bolts can be easily located, scored and then retrieved from any type competition target. The shaft has a THREADED TIP to accept almost any type metal point.
    • 14. 发明授权
    • Low cost guiding device for projectile and method of operation
    • 射弹使用成本低的导向装置及操作方法
    • US09587923B2
    • 2017-03-07
    • US15057215
    • 2016-03-01
    • BAE SYSTEMS ROKAR INTERNATIONAL LTD
    • Gil WurzelAssaf Malul
    • F42B10/06F42B15/01F42B10/64F42B10/04F42B10/26F42B15/10
    • F42B15/01F42B10/04F42B10/26F42B10/64F42B15/10
    • A guiding assembly is adapted to be connected to a projectile and comprising a rear main unit adapted to be connected to the front end of the projectile, and a front main unit rotatably connected at its rear end to the front end of the rear main unit. The front main unit is adapted to rotate about a central longitudinal axis. A relative speed control unit is operable between the rear main unit and the front main unit and capable of providing spin braking force to slow the relative speed of rotation of the front main unit. An at least one guiding fin radially extends from the front main unit. The pitch angle of the fin is controllable by a return spring connected to the fin so that the pitch angle of the fin is growing as the aerodynamic pressure on the fin lowers and it is growing smaller as the aerodynamic pressure on the fin gets bigger.
    • 引导组件适于连接到射弹,并且包括适于连接到射弹前端的后主单元,以及在其后端可转动地连接到后主体前端的前主单元。 前主体适于围绕中心纵向轴线旋转。 相对速度控制单元可在后主单元和前主单元之间操作并且能够提供旋转制动力以减慢前主单元的相对旋转速度。 至少一个引导翅片从前主单元径向延伸。 翅片的俯仰角可以通过连接到翅片的复位弹簧来控制,使得当翅片上的空气动力压力降低时翅片的俯仰角度增加,并且随着翅片上的空气动力学压力变大,翅片的俯仰角变小。
    • 16. 发明授权
    • Stackable, easily packaged and aerodynamically stable flechette
    • 可堆叠,易于包装和空气动力学稳定的薄膜
    • US08375860B2
    • 2013-02-19
    • US13101018
    • 2011-05-04
    • David A. BittleRobert V. WeberJulian L. Cothran
    • David A. BittleRobert V. WeberJulian L. Cothran
    • F42B10/04F42B12/02
    • F42B12/362F42B10/08
    • A flechette has a forward section or body (12) containing its center of gravity. A quill (10) is connected to the forward section and is integrally connected to a pair of fins (15A, 15B) each having a longitudinal angle and a radial angle. When the two fins are viewed from the aft of the flechette, the pair of fins demonstrate an S-shaped orientation. The size, shape and orientation of the fins provide aerodynamic stability to the flechette while allowing the flechette to be stacked with like-shaped flechettes in rows and columns or in a radial, circular arrangement. When stacked in rows and columns or in a circular arrangement, each flechette has its nose oriented in the same forward direction.
    • 指示器具有包含其重心的前部或主体(12)。 羽毛笔(10)连接到前部,并且一体地连接到每个具有纵向角度和径向角度的一对翅片(15A,15B)。 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。 散热片的尺寸,形状和方向为收割机提供空气动力学稳定性,同时允许收割机以行和列或径向圆形布置堆叠有类似形状的收敛片。 当以行和列或圆形布置的方式堆叠时,每个收割机的鼻子朝向相同的向前方向。
    • 17. 发明申请
    • Aerodynamic projectile
    • 气动弹丸
    • US20120199034A1
    • 2012-08-09
    • US12317868
    • 2008-12-29
    • Gary E. GibsonMichael A. Varacins
    • Gary E. GibsonMichael A. Varacins
    • F42B12/40F42B12/72F42B10/04
    • F42B10/06F42B12/40
    • An aerodynamic projectile is provided having a shell with an aerodynamic structure and a controlled center of gravity, and which exhibits improved aerodynamics and resulting accuracy, and which is suitable for less lethal uses. The projectile shell has a closed front cavity housing a payload, such as a marking agent, therein. The projectile shell also has an open rear portion to provide access to the open rear cavity, and to decrease the weight of the projectile and appropriately locate the center of gravity. The projectile shell also includes a plurality of fins on a sidewall member to enhance the accuracy of the projectile.
    • 提供了具有空气动力学结构和受控重心的外壳的空气动力学抛射体,其具有改善的空气动力学和所得精度,并且适用于较少致命的用途。 抛射体壳体具有封闭的前腔,其中容纳有效载荷,例如标记剂。 抛射体壳体还具有敞开的后部部分,以提供进入开放的后腔,并且减少弹丸的重量并适当地定位重心。 抛射体壳体还包括在侧壁构件上的多个翅片以增强射弹的精度。