Patent ID: 7618329

Claim:
A coupler for mating a golf club shaft handle to a club head, comprising: a first pin adapted to fit into a handle end of a golf club shaft, the first pin defining a conical receptor section; a second pin adapted to fit into a club head of a golf club, the second pin defining a conical insertion section to be inserted into the receptor section of the first pin, the conical insertion section having a top and a base, the base having a radius greater than a radius of the top such that the length of the conical insertion section from the base to the top is greater than the radius of the base of the conical insertion section; and a coupling sleeve fixedly attached to one of the first pin and the second pin such that a spring exerts a force on at least one ball bearing through the coupling sleeve, and is reversibly attachable to the other of the first pin and the second pin to allow for mating of the golf shaft handle to the club head when the coupler is in use on a golf club.