发明名称 Variably-weighted exercise hoop
摘要 A variably-weighted exercise hoop includes a plurality of large hollow balls, a plurality of plugs corresponding to and received in the balls, and a cable extending through and securing together the combined balls and plugs. A fixed quantity of pellets is enclosed in each combined ball and plug, and that quantity is varied by the manufacturer to achieve hoops of different weights using only one mold, whereby users of different abilities can have suitable hoops. The pellets provide both audible and physical rhythms for a user as the hoop rotates.
申请公布号 US6379288(B1) 申请公布日期 2002.04.30
申请号 US19990420135 申请日期 1999.10.18
申请人 LIU CHI-CHANG 发明人 LIU CHI-CHANG
分类号 A63B19/00;A63B21/065;(IPC1-7):A63B21/065 主分类号 A63B19/00
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