1
Dave Marinelli: Time of motion, speed, and trajectory height measuring device. Silicon Pie, James R Young, June 6, 2000: US06073086 (159 worldwide citation)

A device for measuring the time of flight, speed, and trajectory height of a projectile, such as a baseball, football, hockey puck, or model rocket, or the time and speed of swing of a movable object, such as a baseball bat or golf club. Part of the device, called the object unit, is embedded, secur ...


2
Marinelli David J: A time of motion, speed, and trajectory height measuring device. Silicon Pie, Marinelli David J, YOUNG James R, July 22, 1999: WO/1999/036859

A device for measuring the time of flight, speed, and trajectory height of a projectile, such as a baseball, football, hockey puck, or model rocket, or the time and speed of swing of a movable object, such as a baseball bat or golf club. Part of the device, called the object unit, is embedded, secur ...



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