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25 条记录 (耗时 0.042 秒)

    Frangible bullet
    21.
    发明授权
    Frangible bullet 有权
    易碎的子弹

    公开(公告)号：US06694888B2

    公开(公告)日：2004-02-24

    申请号：US09969948

    申请日：2001-10-02

    申请人： Bill Jopson ,  Howard Davis

    发明人： Bill Jopson ,  Howard Davis

    IPC分类号： F42B1000

    CPC分类号： F42B7/08 ,  F42B7/10 ,  F42B12/34

    摘要： A frangible hollow point bullet is disclosed. The bullet (or slug) is formed from a frangible material such as sintered copper to provide a bullet-shaped body. A plurality of coaxial, substantially cylindrical cavities having progressively decreasing bore diameters are formed in the nose of the bullet-shaped body, extending rearwardly therefrom, to provide a bullet that both expands and fragments in a semicontrolled fashion upon impact with a target. In a preferred embodiment, at least one of the coaxial cavities is multiply scored to provide a substantially symmetric fragmentation pattern and controlled and uniform fragment size. Controlling the aggregate depth of the coaxial cavities enables the retention of a recoverable base or shank that is suitable for ballistic investigation following bullet impact. Bullets and slugs, made in accordance with the present invention, have standard calibers and, when incorporated into conventional cartridges and shotgun shell casings respectively, may be fired at subsonic, sonic or supersonic velocities by conventional weapons.

    摘要翻译： 公开了一种易碎空心点子弹。 子弹（或s子）由诸如烧结铜的易碎材料形成以提供子弹形体。 多个具有逐渐减小的孔直径的同轴的基本上圆柱形的空腔形成在子弹形体的鼻部中，从其向后延伸，以提供子弹，当与靶碰撞时，它们以半导体方式膨胀和分段。 在优选实施例中，至少一个同轴空腔被多次刻痕以提供基本上对称的碎裂图案和受控且均匀的碎片尺寸。 控制同轴腔的聚集深度使得能够在子弹冲击之后保留适合于弹道调查的可回收底座或柄。 根据本发明制造的子弹和s，具有标准的口径，并且当分别结合到传统的筒和霰弹壳壳中时，可以通过常规的武器以亚音速，声音或超音速的速度发射。

    Boat loading device for high top vehicles
    25.
    发明授权
    Boat loading device for high top vehicles 失效
    高层车辆的装船装置

    公开(公告)号：US3930584A

    公开(公告)日：1976-01-06

    申请号：US458448

    申请日：1974-04-05

    申请人： Howard Davis ,  Euphemia M. Davis

    发明人： Howard Davis ,  Euphemia M. Davis

    IPC分类号： B60P3/10 ,  B60R9/04

    CPC分类号： B60P3/1016

    摘要： An elongated support arm is provided and pivotally supported from an elevated portion of one marginal portion of a vehicle onto whose top a boat is to be placed. The support arm is pivoted to the vehicle for swaying movement of the arm about a horizontal axis generally parallelling the marginal portion of the vehicle from which it is supported between a lowered position with the free end of the arm inclined downwardly and outwardly for contact with the surface upon which the vehicle rests and a raised position with the free end of the arm swung upward to a position with the arm vertically disposed and the free end thereof generally aligned with the top of the vehicle onto which the associated boat is to be positioned. The elevated portion of the vehicle to which the support arm is pivotally attached is disposed at a height equal to at least one half the effective length of the support arm and the free end of the support arm includes mounting structure pivotally supported from the support arm and releasably anchorable to the upper marginal portion of a boat to be loaded on top of the vehicle.

    摘要翻译： 提供细长的支撑臂，并且从车辆的一个边缘部分的升高部分枢转地支撑，车辆的顶部上将放置一个船。 支撑臂枢转到车辆，以便摇摆臂围绕水平轴线的运动，该水平轴线大致平行于其所支撑的车辆的边缘部分，该下降位置与臂的自由端向下和向外倾斜以向外接触， 车辆停靠在其上的表面，并且具有臂的自由端的升高位置向上摆动到具有垂直布置的臂的位置，并且其自由端大体上与相关联的船将要定位在其上的车辆的顶部对准。 支撑臂可枢转地附接到的车辆的升高部分设置在等于支撑臂的有效长度的至少一半的高度处，并且支撑臂的自由端包括从支撑臂枢转地支撑的安装结构， 可拆卸地锚固到船的上部边缘部分，以装载在车辆的顶部上。