公开(公告)号：US3408997A

公开(公告)日：1968-11-05

申请号：US43153065

申请日：1965-02-10

申请人： GASTON DE RUYMBECKE ,  GERARD DE RUYMBECKE

发明人： DE RUYMBECKE GASTON ,  DE RUYMBECKE GERARD

IPC分类号： C12G3/14 ,  F41B20060101 ,  F41B7/00

CPC分类号： F41B7/006 ,  C12G3/105

公开(公告)号：US20050124443A1

公开(公告)日：2005-06-09

申请号：US10969576

申请日：2004-10-20

申请人： John Summers

发明人： John Summers

IPC分类号： A63B65/02 ,  F41B20060101 ,  F42B6/08

CPC分类号： F42B6/08

摘要： Provided is a broadhead for an arrow having a shaft with a shaft bore. The broadhead comprises a ferrule and a plurality of blade members. The ferrule has a mating end and a tip end with a plurality of convex ridges being equiangularly spaced around the ferrule such that the ferrule has a tri-oval cross section. Each one of the ridges has a blade groove formed therein for receiving one of the blade members. The blade members each have a base portion that is shaped complementary to the blade groove so that the blade member may be axially insertable into the blade groove. The broadhead includes a shank extending outwardly from the mating end and which is threadably engagable into the shaft bore. An O-ring mounted on the shank is captured between the shank and the shaft bore when the broadhead is secured to the arrow at the mating end.

摘要翻译： 具有带有轴孔的轴的箭头的宽度。 宽头包括套圈和多个叶片构件。 套管具有配合端和具有多个凸脊的末端，多个凸脊围绕套圈等角地间隔开，使得套圈具有三椭圆形横截面。 脊中的每一个具有形成在其中的叶片槽，用于容纳叶片构件中的一个。 叶片构件各自具有与叶片槽互补的基部，使得叶片构件可以轴向地插入叶片槽中。 宽头包括从配合端向外延伸并且可螺纹接合到轴孔中的柄。 当宽杆固定在配合端的箭头时，安装在柄上的O形环被捕获在柄和轴孔之间。

公开(公告)号：US20050120609A1

公开(公告)日：2005-06-09

申请号：US10959120

申请日：2004-10-07

申请人： Jacques Chauvet

发明人： Jacques Chauvet

IPC分类号： A01K79/02 ,  A01K81/00 ,  A01K81/04 ,  F41B20060101 ,  F41B15/02

CPC分类号： A01K79/02 ,  F41B15/022 ,  F41B15/027

摘要： A shark deterrent device is disclosed. The device comprises at least two hollow cylindrical shafts, a tip, a twist-release mechanism, and at least one self-lock mechanism. The tip may be replaceable. The shark deterrent device is a retractable unit that is easy for a diver to carry and stow, and yet can be extended in order to deter a shark. The device is unlocked from its retracted position by twisting a collar, thereby unlocking the concentric shafts and allowing the unit to be fully extendable by hand. Once the unit is fully extended, a self-lock mechanism lock the unit to prevent it from retracting during use. The unit has a handle formed at one end of the outermost cylindrical shaft and a tip at the opposing end of the innermost cylindrical shaft. The tip may be replaceable and removed, and other useful tips may be attached.

摘要翻译： 公开了一种鲨鱼威慑装置。 该装置包括至少两个中空圆柱形轴，尖端，扭转释放机构和至少一个自锁机构。 尖端可以是可更换的。 鲨鱼威慑装置是一个可伸缩的装置，容易使潜水员携带和收起，而且可以延伸以防止鲨鱼。 该装置通过扭转一个轴环从其缩回位置解锁，从而解锁同心轴，并使该单元能够用手完全伸展。 一旦设备完全伸展，自锁机构就可锁定设备，以防止在使用过程中其退回。 该单元具有形成在最外圆柱形轴的一端处的手柄和在最内圆柱形轴的相对端处的尖端。 尖端可以是可更换和移除的，并且可以附加其他有用的尖端。