发明名称 Adjustable weight exercise methods and apparatus
摘要 An exercise dumbbell includes a handle and weight plates maintained in spaced relationship relative thereto. At least one latch is movable into and out of engagement with desired weight plates to prevent movement of the engaged weight plates in a first direction, and thereby secure same relative to the handle. At least one catch is connected to the at least one latch and operable in a second, discrete direction to encourage the latch to remain engaged with the weight plates.
申请公布号 US6402666(B2) 申请公布日期 2002.06.11
申请号 US20000747214 申请日期 2000.12.21
申请人 KRULL MARK A. 发明人 KRULL MARK A.
分类号 A63B21/072;A63B21/075;(IPC1-7):A63B21/075 主分类号 A63B21/072
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