发明名称 Adjustably weighted racquet
摘要 An adjustably weighted racquet includes a head having a frame with multiplicity of holes distributed throughout the frame for receiving strings. The frame has a plurality of bores distributed throughout the frame, each of which are spaced from the holes. A plurality of individual weights are each insertible in a respective one of the bores and are movable from bore to bore for weighting the racquet as desired. A device such as E-rings or spring-loaded ball bearings is also provided for detachably locking the weights in the bores.
申请公布号 US4685675(A) 申请公布日期 1987.08.11
申请号 US19850809243 申请日期 1985.12.16
申请人 HEIMAN, MELVIN 发明人 HEIMAN, MELVIN
分类号 A63B49/04;(IPC1-7):A63B49/04 主分类号 A63B49/04
代理机构 代理人
主权项
地址