A golf putter alignment system for viewing an orientation of a putter face relative to a putting line. A mirrored viewing surface is retained at a viewing angle by a selective, adjustable mounting system with an engaging portion, a pivot joint for angular adjustment, and a sliding joint for lateral position adjustment. The pivot joint can be a sleeve joint with an outer sleeve pivotable about a longitudinal axis relative to a core member. The sliding joint can be formed with the viewing surface slidable in relation to an elongate member, such as by being retained by a housing that is slidable in relation to the elongate member. A scope surface with an alignment scope can be retained in spaced relation to the viewing surface. In embodiments, the viewing surface can be disposed within the putter head, and a block of transparent material can have a face forming the putter face.

A golf putter has a hollow shaft that has a longitudinal channel, a grip that surrounds a portion of the shaft, a putter head, and an adjustable counter-balance weight system. The weight system has a rod that has a four-sided configuration and at least one weight. Each weight has an annular weight housing that has a four-sided channel extending longitudinally therethrough, and with each weight housing having a threaded opening. The rod extends through the channel of the weight housing of the at least one weight, and a threaded setting screw is threaded through the threaded opening and impinges on one of the four sides of the rod to secure the weight inside the four-sided channel.

A golf ball aligning device comprises a shaft having a first and a second end, a handle mounted to the first end and a head member mounted to the second end. The head member further comprises a ball opening extending through the height of the head member having a chamfered or rounded bottom edge to engage a golf ball. An alignment grid on the top face of the head member comprises a crosshair pattern centered with the ball opening. A golf ball engaged with the bottom edge may be manipulated and oriented relative to the alignment grid for setting the trajectory of a shot.

A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.

A face insert for a golf club head, preferably a putter head, is disclosed herein. The face insert comprises a pair of stacked plates, each with a plurality of hinge features. The hinge features of the lower plate extend through openings in the upper plate so that the plates are locked together, and the edge surfaces of the hinge features combine to create a striking surface that increases topspin of a golf ball.

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 golf putter head that can improve the golfer's ability by providing function features that create a consistent setup of putter head position in relation to the golf ball and golfer position in relation to the putter. Once the setup is consistent, further increase in the consistency of the golfer's stroke can be attained through building muscle memory. From the putter stroke, the hitting face can impart an accurate forward motion to the golf ball upon being stricken by the putter head. The putter can provide tactile feedback to the golfer during the golf swing while imparting a forward roll to the golf ball upon striking and can simplify the visual alignment of the putter head to the golf ball.

A head includes a head body and a face plate. The face plate includes a plate front surface and a plate rear surface. The head body includes an opening at which the face plate is disposed, a back support portion that includes a back receiving surface abutting on an outer peripheral edge portion of the plate rear surface and that supports the face plate from a back side, a face outer portion that is a part of a hitting face and that is located on a face peripheral side relative to the plate front surface, and a body groove that is located on the back side of the face outer portion and that is recessed toward the face outer portion.

A shaft for a putter includes decorative sheaths that may beautify the shaft while retaining lightweight stiffness and avoiding breaking the sheaths.

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.