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13. 发明授权

US5228687A Football with gyroscopic ring 失效
标题翻译：足球与陀螺仪环
公开(公告)号：US5228687A
公开(公告)日：1993-07-20
申请号：US1455
申请日：1983-01-07
申请人： Mark T. Luecke , Craig C. Williamson
发明人： Mark T. Luecke , Craig C. Williamson
IPC分类号： A63B43/00
CPC分类号： A63B43/00 , A63B2243/007 , Y10S273/20
摘要： A football having a body formed of a foam material an oblate spheroid contour being substantially symmetrical about a major axis and a minor axis. An outwardly opening groove is formed in the outer surface of the body and extends circumferentially about the minor axis. A soft, resilient plastic ring is seated in the groove. The ring has a weight in the range of approximately one-third to approximately the weight of the foam body. Shallow dimples are formed on the outer surface of the body with the dimples arranged in a plurality of rows extending along the major axis of the body. Each row has a number of dimples located on a compound curve which passes through a meridian at the minor axis of the body, has loops on opposite sides of the meridian and terminates at the meridian at opposite ends of the body. The diameters of the dimples decrease from the largest diameters located adjacent the minor axis of the body to the smallest diameters adjacent the ends of the body along the major axis.
摘要翻译：具有由泡沫材料形成的主体的足球，扁球形轮廓基本上围绕长轴和短轴对称。在本体的外表面上形成向外开口的凹槽，并围绕短轴周向延伸。一个柔软的弹性塑料环位于凹槽中。该环的重量约为泡沫体重量的三分之一至大约的重量。在身体的外表面上形成有浅凹坑，其中凹坑布置成沿主体的长轴延伸的多列。每排具有位于复合曲线上的多个凹痕，该复合曲线穿过身体的短轴处的子午线，在子午线的相对侧上具有环，并且终止于身体相对端的子午线。凹坑的直径从身体的短轴附近的最大直径减小到与主体的端部相邻的最小直径。

14. 发明授权

US5215509A Rope jumping device 失效
标题翻译：绳跳装置
公开(公告)号：US5215509A
公开(公告)日：1993-06-01
申请号：US884906
申请日：1992-05-18
申请人： Burton C. Meyer
发明人： Burton C. Meyer
IPC分类号： A63B5/20
CPC分类号： A63B5/20 , A63B2208/12
摘要： A rope jumping device, including a rope having opposite ends, a platform and an elongated handle. The arm is rotatably mounted on the handle near one end thereof. An anchor is pivotally connected to the platform. One end of the rope is connected to the arm and the other end is connected to the anchor. The rope is of sufficient length such that a user, when standing on the platform, will be able to hold the handle above his or her head. Manipulation of the handle by rotation when the handle is elevated above the head of the user causes rotation of the arm, the rope and the anchor, with the rope describing a generally hyperbolic path above the pivotal connection of the anchor to the base. The arm is mounted on the handle for limited longitudinal movement relative to one end of the handle in addition to rotational mounting on the handle.
摘要翻译：一种跳绳装置，包括具有相对端的绳索，平台和细长手柄。臂可旋转地安装在手柄的一端附近。枢轴连接到平台上。绳索的一端连接到臂上，另一端连接到锚杆上。绳子具有足够的长度，使得用户在站在平台上时能够将手柄保持在他或她的头部上方。当手柄升高到使用者头部以上时，通过旋转来操纵手柄，使得手臂，绳索和锚固件旋转，绳索描述在锚固件的枢转连接之上的基本双重路径。除了在手柄上的旋转安装之外，臂安装在手柄上以相对于把手的一端有限的纵向移动。

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