发明名称 Exercise resistance device with magnets
摘要 An exercise resistance device for use in an exercise apparatus includes a rotatable shaft and an impeller rotatable within a fluid filled sealed chamber. A rotating member is joined for rotation with the rotatable shaft. The rotating member is external to the sealed chamber and is magnetically coupled to the impeller.
申请公布号 US6945916(B2) 申请公布日期 2005.09.20
申请号 US20030419513 申请日期 2003.04.21
申请人 KURT MANUFACTURING COMPANY, INC. 发明人 SCHROEDER DUANE G.
分类号 A63B21/00;A63B21/008;A63B69/16;(IPC1-7):A63B69/16 主分类号 A63B21/00
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