Patent ID: 7850537
Filing Date: 2010-12-14
Classification: A63B

Abstract:
1. An apparatus for training a person to perform a swinging motion, comprising: a motor configured to drive an axle to spin on an axis; a first body attached to the axle and having a mass that rotates and creates a vibration when the axle spins; an attachment means that removably attaches the motor to a shaft of a swingable item; and a user-actuatable switch for activating the motor at least through substantially an entire swing of the swingable item, the entire swing comprising movement of the item from a first position to a different second position; wherein the first body is removable from and reattachable to the axle; and further comprising a second body that is removably attachable to the axle and also comprises a mass that rotates and creates a vibration when the axle spins.