Patent ID: 8636604
Filing Date: 2014-01-28
Classification: A63B,Y10T

Abstract:
1. A golf club for improving a golf swing, such golf club consisting of: a. a club head; b. a club shaft attached to the club head and that rotates within the club head; c. a stop that limits the rotational range of the club shaft in respect to the club head; and d. a tension actuator that attaches to the club shaft and club head and provides tension against the rotation of the club head about the club shaft except when either (i) the club shaft is rotated during a club swing to create a rotational force greater than the tension force that pushes the club head to a rest position, and thereby forces the club head to rotate to the end of the rotational range of the stop in the club head before contact with a golf ball is made, or (ii) upon contact with a golf ball.