Patent ID: 9375619
Filing Date: 2016-06-28
CPC Classification: A63B

Claim Text:
1. An adjustable length golf club shaft for a wood-type club comprising: a grip portion, the grip portion having an end region including an end point and further includes an upper shaft and grip cover; a locking element located within the grip portion; and a lower shaft having an inner surface that is engaged with the locking element, wherein the locking element is configured to engage the inner surface of the lower shaft, wherein a total length of the golf club shaft is adjustable by a distance of at least one inch and a total weight of the golf club shaft in a weight zone is less than 110 g when the shaft is in a fully retracted position, the weight zone being defined as all portions of the golf club shaft that are located between the end point of the grip portion to 11″ along a central axis of the golf club shaft toward a tip portion of the shaft; wherein the golf club shaft can withstand torsional forces of at least 5 N-m and axial forces of at least 500 N when applied to the longitudinal axis of the shaft.