The present invention relates to an iron-type golf club head having a hollow body cavity, a hosel with a shaft-receiving bore that communicates with the hollow body cavity to form a continuous cavity structure, and a center of gravity located closer to the toe than to the heel. The iron-type golf club head preferably includes a face component with a striking face and a rear extending sole portion, and may also include supporting ribs within the continuous cavity structure, a hosel cutout covered by a cover made from a lower-density material than that of the hosel, and through-holes extending through a wall of the hosel.

A golf club such as a putter is disclosed where the elongated putter shaft and the player grip are angled with respect to one another such that a central axis of the shaft is not parallel to an axis of a shaft channel in said grip. In other aspects, the club can be self-balancing, and in other aspects, the club can have a forward or a rearward lean. In the invention, force applied to the grip of the club will be transferred to a club head through said shaft where said shaft is at an angle with respect to said grip.

In a golf club head assembly a body member has a top-forward angled front face, the face comprising a plurality of generally forward-facing teeth. The golf club head assembly further comprises a loft angle adjustment mechanism attached to the body member for adjusting a loft angle of the face. The mechanism includes a hosel element releasably attached to a bar rotatably mounted to an upper side of the body member parallel to the face. The bar is rotatably journaled or mounted in a pair of bar supports attached to the body member. Set screws reside in threaded holes in the bar supports, the set screws operable to releasably lock the bar in a selected orientation relative to the body member, where the selected orientation of the bar corresponds to and determines the loft angle of the front face. The forward angle of the front face, the angles of the teeth, and loft angle of the face are jointly chosen to impart a pure rolling motion onto a struck golf ball.

In a golf club head assembly a body member has a top-forward angled front face, the face comprising a plurality of generally forward-facing teeth. The golf club head assembly further comprises a loft angle adjustment mechanism attached to the body member for adjusting a loft angle of the face. The mechanism includes a hosel element releasably attached to a bar rotatably mounted to an upper side of the body member parallel to the face. The bar is rotatably journaled or mounted in a pair of bar supports attached to the body member. Set screws reside in threaded holes in the bar supports, the set screws operable to releasably lock the bar in a selected orientation relative to the body member, where the selected orientation of the bar corresponds to and determines the loft angle of the front face. The forward angle of the front face, the angles of the teeth, and loft angle of the face are jointly chosen to impart a pure rolling motion onto a struck golf ball.

A universal connector for an adjustable golf club is provided. Such a universal connector includes a first member having a head portion and a body portion and having a bore for receiving a terminal end of a shaft. The connector also includes a second member having a bore for receiving a portion of the first member therein. The first member includes a first anti-rotational member and the second member includes a second anti-rotational member. The first and second anti-rotational members are engageable with one another to prevent relative rotation of the first member relative to the second member about a longitudinal axis of the connector. The second member includes a third anti-rotational member, the third anti-rotational member configured to mate with an anti-rotational member of the golf club head to prevent relative rotation of the second member relative to the head.

A universal connector for an adjustable golf club is provided. Such a universal connector includes a first member having a head portion and a body portion and having a bore for receiving a terminal end of a shaft. The connector also includes a second member having a bore for receiving a portion of the first member therein. The first member includes a first anti-rotational member and the second member includes a second anti-rotational member. The first and second anti-rotational members are engageable with one another to prevent relative rotation of the first member relative to the second member about a longitudinal axis of the connector. The second member includes a third anti-rotational member, the third anti-rotational member configured to mate with an anti-rotational member of the golf club head to prevent relative rotation of the second member relative to the head.

A golf club head including a striking face, a sole extending aft from the striking face, a crown extending aft from the striking face, a skirt extending between the sole and the crown, an interior cavity defined by the striking face, the sole, the crown, and the skirt, an aperture formed through the sole, the aperture having an aperture length and an aperture width, wherein the aperture length is substantially larger than the aperture width, and a stiffening member affixed to the sole, wherein a portion of the stiffening member resides within the aperture, wherein the sole is constructed of a first material having a first density, the stiffening member is constructed of a second material having a second density, and wherein the second density is at least 30% less than the first density.

A golf club head including a striking face, a sole extending aft from the striking face, a crown extending aft from the striking face, a skirt extending between the sole and the crown, an interior cavity defined by the striking face, the sole, the crown, and the skirt, an aperture formed through the sole, the aperture having an aperture length and an aperture width, wherein the aperture length is substantially larger than the aperture width, and a stiffening member affixed to the sole, wherein a portion of the stiffening member resides within the aperture, wherein the sole is constructed of a first material having a first density, the stiffening member is constructed of a second material having a second density, and wherein the second density is at least 30% less than the first density.

A golf club comprises a club head having a hosel, a shaft disposed within the hosel, a ferrule disposed about the shaft at a coupling between the shaft and the hosel, and a tagging device coupled to the ferrule. The tagging device can be at least partially disposed within the ferrule, and the tagging device can be a wireless communication device.

Golf club heads with improved aerodynamic properties. In an example, the golf club head has a club head frontmost point and a club head rearmost point. The golf club head may include a striking face and a sole connected to a bottom side of the striking face. The sole has a rearmost point and may have a closing ascent angle of less than about 35 degrees. The club head also includes a crown connected to a topside of the striking face. The crown has a rearmost point and may have a closing descent angle of less than about 35 degrees. The closing descent angle may also be within 85%-115% of the closing ascent angle of the sole. Toeward and heelward tripping structures may also be incorporated on the hosel to further improve aerodynamic properties of the golf club head.