Patent ID: 8496539

Claim:
An adjustable length golf club comprising: a first shaft having a first end coupled to one of a head or a grip and a second end; a second shaft having a first end including a hollow portion and a second end coupled to the other one of the head or a grip, the hollow portion of the first end of the second shaft configured to movably receive the second end of the first shaft; a collar located on the hollow portion of the second shaft and having a first side and a second side, the collar having a first position wherein the first shaft and the second shaft are frictionally locked and a second position wherein the first shaft and the second shaft are movable relative to each other, the collar comprising a bore extending from the first side to a gap between the first side of the collar and the second side of the collar, the bore configured to receive a bolt, wherein the bolt is configured to engage the second side of the collar to expand the collar from the first position to the second position when the bolt is advanced into the bore; and a connection device comprising a first section configured to be connected to the second end of the first shaft, a second section configured to be inserted in the hollow portion of the first end of the second shaft to connect with the second shaft, wherein an outer diameter of the second section is greater than an outer diameter of the first section.