发明名称 Velocity meter for sports implements
摘要 A velocity meter attachable to a baseball bat or other hand-held swingable sports implement to indicate swing velocity. The meter is provided with a ratchet wheel rotatable within a case whose cover has a window exposing a pointer on the upper face of the wheel. Affixed to the under face of the wheel at an eccentric position thereon is an inertia weight. The teeth of the wheel are engaged by a retractable pawl which permits counterclockwise motion of the wheel but prevents clockwise motion except when the pawl is retracted to permit meter resetting.
申请公布号 US5133213(A) 申请公布日期 1992.07.28
申请号 US19900603014 申请日期 1990.10.25
申请人 BERNSTEIN, JEROME D.;AMRHEIN, CHRIS 发明人 BERNSTEIN, JEROME D.;AMRHEIN, CHRIS
分类号 G01P3/16 主分类号 G01P3/16
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