Patent ID: 7695376

Claim:
A golf club moveable disc shaft angle technology assembly comprising: a shaft; a club head having a face arranged for striking a golf ball and a back arranged opposite the face of the club head; said shaft having, at one end, a round member with a face that opposes the face of the club head when the shaft is attached to the club head; a thin round member having a hole in its center; said thin round member having two surfaces, with one surface opposing the round shaft member and the other opposing the face of the club head when the shaft and thin round member are attached to the club head; a round opening in the face of the club head for receiving both the thin round member and the round shaft member; a smaller round opening through the center of the round opening in the face; said smaller round opening configured to open to the back of the club head for accepting a threaded post there-through; a threaded post attached to the round shaft member and arranged to extend through both the hole in the center of the thin round member and the smaller round opening; a nut removably attached to the threaded post from the back of the club head to secure the round shaft member and thin round member to the club head; an adjustable fastening arrangement that makes use of the face of the round shaft member that opposes the thin round member, a substantial portion of the face of the thin round member that opposes the round shaft member, the face of the thin round member that opposes the face of the club head, and the round opening in the face of the club head; said adjustable fastening arrangement including a combination of half-spherical divots on the surface of the round opening in the face of the club head and half-spherical protrusions on the face of the thin round member that opposes the round opening in the face of the club head; said adjustable fastening arrangement arranged such that a combination of said half-spherical divots and said half-spherical protrusions mate the thin round member to the round opening in the face of the club head, in any of a number of positions; said adjustable fastening arrangement including a combination of a half-spherical protrusion on the surface of the round shaft member that opposes the face of the club head and half-spherical divots on the face of the thin round member that opposes the round shaft member; said adjustable fastening arrangement arranged such that a combination of said half-spherical protrusion and said half-spherical divots mate the round shaft member to the face of the thin round member that opposes the round shaft member, in any of a number of positions; the half-spherical divots are arranged in a substantially circular path adjacent the perimeter of either the thin round member or the surface of the round opening in the face of the club head, and cover a substantial portion of the perimeter.