Abstract: Customizable golf putters are disclosed. The putters include a putter face; a putter head that is configured to be reversibly connected to the putter face (with the putter head being selected from a plurality of different putter head styles); and a hosel that is configured to be reversibly connected to any of a plurality of hosel receiving channels that are accessible on a top surface of the putter head (the hosel is also selected from a plurality of different hosel styles). The golf putters further include a threaded shaft connector that is configured to reversibly connect the hosel to a putter shaft. In addition, the golf putters include one or more peg fillers, which are configured to be inserted into empty hosel receiving channels.

Abstract: 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.

Abstract: Customizable golf putters are disclosed. The putters include a putter face; a putter head that is configured to be reversibly connected to the putter face (with the putter head being selected from a plurality of different putter head styles); and a hosel that is configured to be reversibly connected to any of a plurality of hosel receiving channels that are accessible on a top surface of the putter head (the hosel is also selected from a plurality of different hosel styles). The golf putters further include a threaded shaft connector that is configured to reversibly connect the hosel to a putter shaft. In addition, the golf putters include one or more peg fillers, which are configured to be inserted into empty hosel receiving channels.

Abstract: A length adjustable golf club includes a club head attached to a shaft at a lower end. A length adjusting kit includes a shaft insert that attaches to the shaft at an upper end. The shaft insert includes a coupling port that accepts one of an extension block or a grip connector. To provide length adjustments of the overall club length, one or more extension blocks may attached between the shaft insert and the grip connector. A grip assembly having a reinforcing sleeve connects to the grip connector and extends over the shaft and any extension blocks.

Abstract: 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.

Abstract: An insert (510) comprising a core (532) and one or more extensions (530) extending from the core. The insert is adapted to be inserted into a cavity of a hollow tube-shaped member (512). The hollow member can be a motorcycle handlebar or footrest. The insert can be made of metal or a polymer and can be an extrusion product.

Abstract: Examples of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a body portion of a golf club head may include a cavity having an opening and an internal structure defined by a wall portion and a base portion. A hosel portion may include an insert portion and a neck portion extending therefrom. The hosel portion may be attached to the body portion by an interference fit between the neck portion and the opening of the cavity. The insert portion may be received inside the cavity and may be spaced apart from the internal structure of the cavity. A space between the insert portion and the internal structure of the cavity may be partially or entirely filled with an adhesive to hold the hosel portion in place. Other examples may be described and claimed.

Abstract: Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion having a toe portion, a heel portion, a top portion, a sole portion, a front portion, a back portion, a hosel portion, a first interior cavity, and a hosel transition portion between the first interior cavity and the hosel portion. The golf club head may include a second interior cavity extending into the hosel transition portion and connected to the first interior cavity. The body portion may include a port connected to the first interior cavity. The first interior cavity may be filled with a polymer material from the port. The golf club head may include a mass portion located at or below a horizontal midplane of the body portion. Other examples and embodiments may be described and claimed.

Abstract: Disclosed is a putter assembly. When fully assembled, the putter allows an individual using said putter (the “player”) to strike a golf ball with either one of the three available striking surfaces. Said choice of striking surfaces allows the player to utilize the front load putting method, and in alternative, the left or the right handed side putting method. The putter assembly comprises of three primary components: 1) U-shaped striking plate, incorporating the left, right and the front striking plate, wherein each of said striking plates further comprises of an impact area; 2) the frame, comprising of the back connecting member, with a disc for stacking weight plates, and the front connecting member, with a hosel for attaching thereto a shaft; 3) and the shaft, allowing the player to manipulate the movement of the putter. The assembly also incorporates putter alignment features, designed to help the player improve his/her shot accuracy.

Abstract: Embodiments of golf clubs with adjustable loft and lie and methods of manufacturing golf clubs with adjustable loft and lie are generally described herein. The invention relates in particular to a golf club head with an adjustment portion that allows a user to change the loft and lie. The separate adjustment portion of the club head can couple the upper hosel to the body at a plurality of positions. An insert part of the adjustment portion has an upper section for receiving the upper hosel portion, a middle section, and a lower section. The sections of the adjustment portion can be coupled together by a fastener so that the sections are rotationally movable.

Abstract: Some embodiments include a club head for adjusting vertical spin of a golf ball. Other embodiments of related systems and methods are also disclosed.

Abstract: A resilient rod that provides adjustable directional resistance is disclosed. In one aspect of the invention, a resistance level may be determined based on a thickness of the rod and a position of an applied force with respect to a fulcrum point. In another aspect of the invention, at least one spine may be attached to the beam to increase a diameter of the beam along one axis. The resistance level may be determined based on the thickness of the rod, the position of the applied force and an orientation of the at least one spine with regard to the direction of the applied force. In other aspects of the invention, the resilient rods may be incorporated into a golf club that provides for adjustable resistance levels.

Abstract: The present invention concerns a set of golf club heads having progressive head sizing such that the size of the club heads in the set decreases as the loft angle of the club heads increases; and golf club sets including such club heads. The present invention also concerns weighting systems for use with the progressively sized club head set.

Abstract: A golf club incorporating an interchangeable shaft system includes a shaft, a shaft sleeve, a club head. The shaft sleeve is coupled to an end of the shaft and is received in a hosel included in the club head. The shaft sleeve is removably coupled to the club head. Hosel and shaft sleeve alignment features provide discrete orientations between the shaft and club head.

Abstract: An adaptable training putter head for use in a training putter includes a conventional style putting head, further including a cavity, an outer cutout, and an inner cutout; an alignment guide piece, further including an outer alignment guide, an inner alignment guide, and a center insert bridge piece; all mounted to the conventional style putting head, to which is also attached a hosel connector. The alignment guides can be hollow, can each include an upper and a lower body, and can include alignment guide cavities, which can contain alignment guide weights for adjusting weight and balance. The adaptable training putter head allows a golf player to visually ensure that a putting club is oriented correctly during a putting swing, to improve accuracy during golfing. The adaptable training putter head supports both regulation conformant and non-conformant configurations.

Abstract: An adjustable connector is provided including a first part and a second part, each part including a main body having a longitudinal axis. One part includes at least one first locator, and the other part includes at least two second locators. The connector is configured such that engagement of the first locator with different second locators results in different orientations of the longitudinal axes of the parts with respect to one another. Each part includes a frustum shaped surface, where the surfaces are configured to abut against each other in at least one orientation of the longitudinal axes.

Abstract: A golf club incorporating an interchangeable shaft system includes a shaft, a shaft sleeve, a club head. The shaft sleeve is coupled to an end of the shaft and is received in a hosel included in the club head. The shaft sleeve is removably coupled to the club head. Hosel and shaft sleeve alignment features provide discrete orientations between the shaft and club head.

Abstract: A variable length shaft assembly comprising at least one spacer, a shaft portion, and a threaded fastener, wherein the threaded fastener removably connects the spacer to the lower shaft, is disclosed herein. The variable length shaft assembly may further comprise at least two spacers that are stackable on a butt end of the shaft portion so a golfer can adjust the total length of the shaft. Methods of adjusting the length of a golf club shaft without damaging any portion of the shaft and variable length shaft kits are also disclosed herein.

Abstract: A golf club putter includes a clubhead body sufficiently weighted to define a center of gravity of the golf club, which center of gravity may be adjusted for left and right handed golfers. The putter includes a graphite or fiberglass composite shaft, elongated along a central axis continuously tapering radially inwardly, from: a larger outside diameter adjacent a tip end attached to the clubhead body, to: a smaller outside diameter adjacent a grip end. Preferably, the composite shaft is reverse tapered. The reverse tapered shaft comprises longitudinally oriented graphite or fiberglass fibers in an arrangement that enables shaft torsional distorting forces imposed at the grip end during putting to be imparted to the clubhead and a golf ball thereby.

Abstract: A golf putter with repositionable shaft comprising a head, where the head is composed of a top surface, a striking face, a back face, a first end and a second end: three receiving holes along the top surface of the head, where the receiving holes include a threaded inner surface, and a bottom protrusion positioned horizontally within the receiving hole; a pair of plugs threaded into two of the receiving holes; a shaft fitted into one of the receiving holes, where the shaft repositions with the pair of plugs to fill each receiving hole; and a fitting at a bottom end of the shaft, where the fitting includes an insert with a bottom groove, where the bottom groove receives the bottom protrusion to lock the shaft into place within one of the receiving holes.

Abstract: In general, aspects of this invention relate to golf clubs or golf club components incorporating adjustment members that permit ready adjustability of golf club parameters and/or interchangeability of golf club components to change a golf club configuration, and methods for providing golf clubs. According to aspects of this invention, an adjustment member may be utilized to allow the adjustability of a golf club parameter to change a golf club configuration, while ensuring there is substantially no change to other club or club head variables, parameters or characteristics. According to another aspect of this invention, an adjustment member may be utilized to allow the adjustability of two golf club parameters independently to change a golf club configuration, while ensuring there is substantially no change to other club or club head variables, parameters or characteristics.

Abstract: A golf club includes: a shaft; a head mounted on the leading end of the shaft; and a shaft case having a substantially cylindrical shape and fixed to the leading end of the shaft and inserted into a hosel formed in the head, the shaft case being fixed to the head by a bolt inserted from the sole side of the head, wherein the shaft case includes a small-diameter cylindrical portion on the leading end side thereof and a key portion formed on the outer peripheral surface of the small-diameter cylindrical portion, and multiple slits having different depths and engageable with the key portion are formed in the deep portion of the inside of the hosel, whereby, by changing the slits engageable with the key portion, the insertion depth of the shaft case into the hosel can be changed.

Abstract: A golf club includes a head having a plurality of holding holes and a hosel part, the hosel part having a sleeve insertion hole; a shaft; a sleeve, the sleeve being inserted into the sleeve insertion hole and bonded to the shaft, the sleeve having a screw hole; and a connecting member having a screw part inserted into the screw hole of the sleeves and forms a screw-connection of the sleeve and the connecting member, wherein the shaft is configured to be fixed along one of a plurality of shaft axis lines by positioning the connecting member in one of the plurality of holding holes such that a lie angle is adjustable to be along one of the plurality of shaft axis lines.

Abstract: A golf club includes a golf club head and a shaft attached to the golf club head, the golf club including the golf club head provided with a shaft insertion hole having an upper opening and a lower opening, the shaft insertion hole having an internal surface provided with an undercut groove, the shaft having a tip end, a shaft sleeve adaptor attached to the tip end of the shaft, the shaft sleeve adaptor inserted into the shaft insertion hole through the upper opening and having a first thread portion, a fastener comprising a second thread portion engaging with the first thread portion of the shaft sleeve adaptor through the lower opening of the shaft insertion hole, and a washer held in the undercut groove of the shaft insertion hole and disposed between the fastener and the shaft sleeve adaptor.

Abstract: Golf club, golf club shaft and golf club head structures are presented. The golf club may include an adjustable shaft configured to be received in a slot formed in a crown of the golf club head. In some examples, the slot may include a plurality of receivers, such as apertures, configured to receive the shaft in various positions along the length of the slot. The various positions may be progressively closer to a central area of the ball striking surface in order to increase the power transferred to the ball upon striking it.

Abstract: A golf club includes a head, a removable assembly and a shaft. The head has a body, a striking panel and a sleeve. The body is coupled with the striking panel. The sleeve is sandwiched between the body and the striking panel. The sleeve includes a neck and an assembling portion. The neck protrudes from a combined structure of the body and the striking panel, and the assembling portion is sandwiched between and enclosed by the body and the striking panel. The neck has an assembling hole. The assembling portion has at least one engaging hole extending from a surface of the assembling portion to a circumferential wall of the assembling hole. At least one engaging medium is placed in the engaging hole. The removable assembly is disposed in the assembling hole and coupled with the engaging medium. The shaft has one end inserted into the removable assembly.

Abstract: Golf club, golf club shaft and golf club head structures are presented. The golf club may include an adjustable shaft configured to be received in a slot formed in a crown of the golf club head. In some examples, the slot may include a plurality of receivers, such as apertures, configured to receive the shaft in various positions along the length of the slot. The various positions may be progressively closer to a central area of the ball striking surface in order to increase the power transferred to the ball upon striking it.

Abstract: A golf club interchanging connection structure for interchanging a club head and a shaft includes a tube seat, a club sleeve, a positioning mechanism, a screw, and a tapered gasket. The tube seat in the club head includes a tapered slot. The club sleeve placed in the tube seat has one end being fixed with the shaft and the other end being configured into a tapered shape and having a nut hole. The club sleeve has at least one positioning slot on its exterior. The positioning mechanism placed into the club head includes at least one positioning block corresponding to the positioning slot for positioning and fixing the club sleeve. The screw is screwed with the nut hole of the club sleeve, so as to lock the club sleeve. The tapered gasket is placed between the tapered end of the club sleeve and the tapered slot of the tube seat.

Abstract: A golf club interchanging connection structure for interchanging a club head and a shaft, in which a connecting part is in the club head and a female screw is formed in the connecting part, includes a nut hole position part, a club sleeve, and a screw. The nut hole position part includes a male screw on an outer surface thereof and a flange. The flange includes a leaning surface and a positioning hole. The male screw is screwed with the female screw in the connecting part. The club sleeve is placed within the connecting part and has one end being fixed with the shaft and the other end having a nut hole. The screw including a screw head is positioned through the positioning hole and screwed with the nut hole, and the screw head leans against the leaning surface to lock the shaft connected to the club sleeve.

Abstract: Methods and apparatus for interchangeably coupling golf club heads and shafts are described herein. Other embodiments may be described and claimed.

Abstract: Disclosed herein is a golf club including a shaft, a club head and several devices for releasably connecting the shaft to the club head.

Abstract: A golf club interchanging connection structure for interchanging a club head and a shaft includes a positioning mechanism, a club sleeve, an internal screw, and an anti-rotation external screw. The positioning mechanism is placed within the club head. The club sleeve, having one end being connected to and fixed with the shaft and the other end having a first male screw, is placed within the positioning mechanism. The internal screw comprises a nut hole, which is screwed with the first male screw of the club sleeve to lock the shaft connected to the club sleeve. The anti-rotation external screw comprises a second male screw on an outer surface thereof corresponding to a female screw in the club head, in which the second male screw of the anti-rotation external screw is screwed with the female screw, and the anti-rotation external screw leans against the internal screw.

Abstract: A golf club interchanging connection structure for interchanging a club head and a shaft, in which a connecting part is in the club head and a female screw is formed in the connecting part, includes a nut hole position part, a club sleeve, and a screw. The nut hole position part includes a male screw on an outer surface thereof and a flange. The flange includes a leaning surface and a positioning hole. The male screw is screwed with the female screw in the connecting part. The club sleeve is placed within the connecting part and has one end being fixed with the shaft and the other end having a nut hole. The screw including a screw head is positioned through the positioning hole and screwed with the nut hole, and the screw head leans against the leaning surface to lock the shaft connected to the club sleeve.

Abstract: A golf club interchanging connection structure for interchanging a club head and a shaft includes a tube seat, a club sleeve, a positioning mechanism, a screw, and a tapered gasket. The tube seat in the club head includes a tapered slot. The club sleeve placed in the tube seat has one end being fixed with the shaft and the other end being configured into a tapered shape and having a nut hole. The club sleeve has at least one positioning slot on its exterior. The positioning mechanism placed into the club head includes at least one positioning block corresponding to the positioning slot for positioning and fixing the club sleeve. The screw is screwed with the nut hole of the club sleeve, so as to lock the club sleeve. The tapered gasket is placed between the tapered end of the club sleeve and the tapered slot of the tube seat.

Abstract: An interchangeable threaded attachment means for securing a given object to a shaft. By way of example and not limitation, the attachment means is embodied in a golf club assembly, providing for the use of multiple golf club heads with a single shaft. The assembly means comprises a threaded collet adaptor which clamps onto the lower portion of a golf club shaft and is threaded into a female aperture on the top of a golf club head. The threaded female aperture has a series of progressively ramped threads which locks the male threaded collet adapter securely in place when tightened, thereby eliminating the lateral thread clearance and converting some of the axial tension, seen in typical 60° threads, to radial or compressive forces on the male threads. This design utilizes the compressive forces to compress the male thread component, gripping the shaft, and eliminating all clearances in the threaded joint that can allow vibration or noise in the joint.

Abstract: A golf club having removable components includes a club head, a shaft, and a connection assembly. The club head includes a hosel having an upper treaded portion and a lower portion with a faceted cross-section. The connection assembly includes a sleeve mounted on the tip end of the shaft and a screw-cap. The sleeve, which has an aperture for receiving the tip end of the shaft, includes a lower section that has a multi-faceted surface for engaging the lower portion of the hosel. The screw-cap is mounted over the sleeve and includes a body having an upper area and a threaded area, the latter of which is capable of engaging the upper threaded portion of the hosel to removably secure the shaft to the club head.

Abstract: Disclosed herein is a golf club including a shaft, a club head and several devices for releasably connecting the shaft to the club head.

Abstract: A golf club includes a head, a retaining ring, a tightening ring, an adjusting sleeve, a hosel, a fixing sleeve, a coupler, and a shaft. A pin is threadedly engaged with a transverse screw hole of the neck and a transverse screw hole of the hosel and extended into a transverse hole of the coupler, such that the shaft is pivotable about the pin to allow adjustment in the tilt angle between the shaft and the head. The golf club provides a tilt adjustable mechanism with a strong structure while providing reliable tilt adjustment.

Abstract: A connector used to assemble a golf club. The connector includes a shaft mount having bore and a first connector and a head mount having a shaft and a second connector. The bore is sized to mate with and secure the golf club shaft while the shaft is sized to mate with and secure the golf club head. First threads, formed on the first interchangeable connector, and second threads, formed on the second interchangeable connector, are of a common or universal size. The first threads on the first interchangeable connector and the second threads on the second interchangeable are threadably mateable to connect the shaft mount and the head mount together even though the bore and the shaft may each be one of a plurality of different sizes.

Abstract: This invention relates to a golf club head with an adjustable tilt mechanism which is designed to be mounted between a shaft and a head. Simply speaking, the neck of the head forms a long adjusting cavity and the shaft is held in the long adjusting cavity of the head by the pivot but pin permitting left or right swing. The shaft is further locked in the lock ring and clamped in place by the tie land and tie slot carved on the head to retain the shaft fast within the long adjusting hole of the head. This mechanism permits an adequate adjustment of tilt angle (an angle of elevation) of the face. At the case of a long flight of ball striking, the face at a desirable tilt angle will render the ball a low or high parabola along the flight course to fly over the obstacle.

Abstract: A golf club has a head with a hollow body. The head has a neck formed at an upper portion of the hollow body. A passage is longitudinally defined through the neck. A flange is formed at a lower end of the neck and inside the hollow body. A first threaded hole is defined through the flange and coaxial with the passage. A bolt is inserted through the first threaded hole. A second threaded hole is defined through a bottom surface of the head and coaxial with the first threaded hole and the passage. A shaft has a lower end inserted in the passage of the neck. A third threaded hole is defined at the lower end and engaged with the bolt.

Abstract: A golf club has a head with a hollow body. The head has a neck formed at an upper portion of the hollow body. A passage is longitudinally defined through the neck. A flange is formed at a lower end of the neck and inside the hollow body. A first threaded hole is defined through the flange and coaxial with the passage. A bolt is inserted through the first threaded hole. A second threaded hole is defined through a bottom surface of the head and coaxial with the first threaded hole and the passage. A shaft has a lower end inserted in the passage of the neck. A third threaded hole is defined at the lower end and engaged with the bolt.

Abstract: The present invention discloses an improved golf club structure, characterized in that the club head connected to the club stick having a plurality of holes around the periphery of the club head, so that when the club head hits the golf ball, most of the vibration waves and sound waves generated are dispersed out of these holes to reduce the force of the vibration wave conducted to the club stick as well as the vibration to the golfer's hand in order to avoid athletic injury. In the meantime, the present invention also has the effect of lowering the noise, and thus improves the accuracy of the direction of the striking golf ball. When the club head and the club stick are coupled by adhesive, some of the adhesives permeate into said holes to enhance the strength of the coupling.

Abstract: A golf club system for reducing the amount of clubs to be carried by a golfer. The golf club system includes a shaft member being designed for being held in the hands of the user. Each of a plurality of head assemblies is selectively coupled to the shaft member. Each of the head assemblies comprises a shank portion and a head portion. The shank portion of each of the head assemblies is selectively coupled to the shaft member whereby each of the head assemblies is designed for striking a golf ball when the shaft member is swung by the user. Each of the head assemblies is designed for causing the golf ball to move at an angle when the associated one of the head assemblies strikes the golf ball.

Abstract: An adjustable putter head and club shaft combination golf putter is adjustable in both shaft length and head angle. A main shaft includes a second shaft portion which telescopes inside a first shaft portion for adjusting the length of the main shaft. A gear assembly located between the second shaft portion and the putter head creates pivoting action of the putter head. When the main shaft is telescopically extended to its longest length, the putter head is located at almost a right angle with respect to the main shaft. As the main shaft is shortened, the putter head increases its angle to approximately 15° in a directly proportional manner.

Abstract: A method and apparatus for assembling a shaft to a golf club head is disclosed. The club head is positioned in a club head alignment device of the apparatus, which further includes a holding device and a press device with a jaw mechanism. A ferrule and a sleeve are placed on the tip end of the shaft, and the butt end is inserted into the holding device. The tip end of the shaft and the sleeve are inserted into a tapered bore in the hosel of the club head. The jaw mechanism of the press device is then enclosed around the shaft, and the press device is operated to force the sleeve further into the tapered hosel bore. The club head and partially attached shaft are then removed from the apparatus, and the ferrule is secured to the hosel to completely attach the shaft.

Abstract: A golf club has a head with a fixing hole defined therein to receive a connecting portion of a shaft fixed therein, and an adjusting means particularly provided therein to enable the head to be adjustable until a desired dynamic balance and stability of the golf club are reached. The adjusting means includes a connecting spindle having a first end thereof fixed in the connecting portion and a second end thereof formed with a connector inserted into the fixing hole of the head, and a fastening member threaded through a screw hole defined at one side of the fixing seat and extending into the fixing hole. A tip end of the fastening member formed with a cone surface is correspondingly abutted against an inclined surface formed around an annular groove defined around the connector.

Abstract: A golf club has a weight member provided between a shaft and a head thereof. The weight member is optionally made of materials with high density, and has a weight substantially equal to a weight of a standard head of a conventional golf club minus the weight of the head of the golf club of the invention. Thus, the weight of the head is less than the standard head of the conventional golf club and the whole weight of the golf club is equal to the conventional golf club, so that the twisting force applied to the head of the golf club is lessened, and the stability of the golf club is improved.

Abstract: A golf club with high accuracy in driving a golf ball is disclosed. The golf club includes a tapered hollow shaft having a thin end and a thick end, with a weight received in the hollow shaft. A head is formed with a neck that defines a stepped hole for fixedly receiving the thin end of the shaft. Importantly, the head is made less heavy than a related standard by an amount equivalent to the weight in the hollow shaft, and so the golf club has the same gross weight as a normal club.

Abstract: A dynamic balance mechanism includes an adjusting barrel adapted to be adjustably extending into the club head and having a portion of the shaft securely received inside the adjusting barrel. A rotation of the adjusting barrel adjusts the relative position between the club head and the shaft.