A stroke counting putter assembly for tracking a number of strokes taken by a putter in a round of golf includes a putter that has a handle and a striking head for striking a golf ball. An impact sensor is coupled to the striking head to strike the golf ball when the striking head strikes the golf ball. A control circuit is coupled to the putter and the control circuit is electrically coupled to the impact sensor. The control circuit counts the number of times the impact sensor strikes the golf ball. A display is coupled to the handle and the display is electrically coupled to the control circuit. The display displays indicia comprising numbers communicating the number of times the impact sensor strikes the golf ball to communicate the number of strikes to a user.

An improved putter grip is provided. In one embodiment, the putter grip includes an enlarged heel portion that can be held in the fore-to-aft direction or the side-to-side direction, dependent upon the user's preference. The putter grip includes a front-facing surface between a right side surface and a left side surface. The putter grip also includes a rear-facing surface that is opposite of the front-facing surface. The rear-facing surface includes an upper portion, defining the enlarged heel, a lower portion, and an intermediate portion. The lower portion of the rear-facing surface is spaced apart from the front-facing surface by a reduced distance, and the intermediate portion is a continuous extension of the lower portion. As a result, the front-to-back width of the putter grip is greater in the upper portion than in the lower portion, with the intermediate portion defining a slightly concave exterior curvature.

A method and system for improving the accuracy of putting a golf ball that includes a golf glove for use with a putter grip that has a straight edge, with the golf glove having a visual line alignment feature/illustration that allows a golfer to place his or her hand in a repeatable, proper position on the grip of the putter. The golf glove employed is devoid of any putter attachment feature, such as hook-and-loop fastener material on the glove or the golf grip and is further devoid of any indicia affixed to the back-hand portion of a glove that could be viewed as an alignment indicia, as it only complicates and confuses a golfer when putting. Preferred embodiments include a golf glove that includes a marking forming a straight line that diagonally crosses the palm portion of the glove such that, when worn by a wearer, provides the wearer with a visual indication of the proper gripping position of a golf putter, such putter having a grip that has at least one flat surface and an edge extending down the axial length of the grip that can be aligned with the visual indicator markings/line on the golf glove.

A resilient face insert for a golf club head, preferably a putter head, is disclosed herein. In particular, the face insert comprises a plurality of hinge features spaced from a striking surface to ensure consistent ball speed across the striking surface. Each hinge feature comprises a tab portion that is spaced from the striking surface by a stem portion and that extends parallel to the striking surface, and is angled with respect to a horizontal y-axis. The orientation of hinge features with respect to the y-axis varies across the face, which reduces sidespin from mishits and produces consistent topspin regardless of impact location of a golf ball on the face insert.

A golf club head, preferably a putter head, comprising a replaceable face insert is disclosed herein. The golf club head comprises a body with face cavity and a secondary cavity in communication with, and disposed behind, the face cavity, and at least one opening extending through a top or sole portion into the secondary cavity. The replaceable face insert comprises a striking portion and a support structure extending from a rear surface of the striking portion. The support structure is received within the secondary cavity and the striking portion is received within the face cavity, and then a rod or bolt is inserted through the opening and through the support structure to reversibly secure the face insert to the body. A linear bearing may be disposed within the support structure to receive the rod or bolt.

A resilient face insert for a golf club head, preferably a putter head, is disclosed herein. In particular, the face insert comprises a plurality of hinge features spaced from a striking surface to ensure consistent ball speed across the striking surface. At least a portion of each hinge feature extends parallel to the striking surface without making contact with the striking surface. In the preferred embodiment, each hinge feature comprises a tab portion that is spaced from the striking surface by a stem portion and that extends parallel to the striking surface. The hinge features may be co-molded with a polymeric backing material having a plurality of parallel grooves in order to further improve performance of the face insert.

An improved golf club putter having a selectable hosel, each hosel having a characteristic lie angle and loft angle, wherein the hosel is mounted to the head of the golf club, and wherein the hosel has a position orientation feature which aligns the shaft and hand grip with respect to the putter head for accurate operation of the golf club putter.

This invention is directed toward a lie adaptor that can be used to adjust an angel at which the shaft attaches to the putter. In one embodiment, the lie adaptor is inserted into the hosel of a putter, and then secured to both the shaft and putter head. In another embodiment, the lie adaptor has a cavity in its upper portion into which the shaft fits. In either case, the lie adaptor can be made with a variety of angle adjustments possible, such that a golf shop or even an individual golfer can quickly, accurately, and economically adjust the putter lie.

A process for manufacturing a putter with a bi-material shaft is disclosed herein. The putter comprises a putter head, the bi-material shaft, a mass member and a grip. The bi-material shaft comprises a body with a tip end and a butt end. The body comprises a metal section extending from the tip end to a connection point, and a composite section extending from the butt end to the connection point. The mass member is positioned within an opening at the butt end of the shaft. Mass from the shaft is transferred to the club head and the mass member in the butt end of the shaft.

A golf club head with a multi-material construction in which a portion of the club head is a first material such as engineered stone or concrete and a second portion of the club head is a second material such as a metal, thermoplastic, or a composite.