Abstract: A composite golf club head includes a strike plate having a neck formed at an end of the strike plate. A rear portion is formed at an upper side of the strike plate and extends backwards. An inner plate, made up of multiple layers of fiber prepreg material, is adhered to an interior surface of the strike plate by a first of two adhesive sheets. A cover, made up of multiple layers of the fiber prepreg material, is adhered to the back of the rear portion by a second of the adhesive sheets. A bottom plate, made up of a metal material, is adhered to bottom portions of the strike plate and the cover by the adhesive sheets to close the head. A seat is formed inside the bottom plate, and a hole is defined through the seat. A balance member is engaged in the hole.

Abstract: The exemplary embodiment of the present invention comprises a non-contiguous hosel for attaching a golf club shaft to a golf club head. In an exemplary embodiment, two inserts are used to form a hollow shaft receptacle, or hosel. The two inserts are placed at substantially opposite portions of the club head. The placement of the inserts may be manipulated to vary the lie or loft angle of the golf club. In other embodiments, the two inserts may be joined, or multiple inserts may be used, in order to form a non-contiguous hosel.

Abstract: The method and apparatus of the present invention includes an alignment base for receiving a golf club head, an injector for injecting an adhesive material into a bore of the golf club head, and a mechanism for holding a shaft for attachment to the golf club head. The present invention allows for greater efficiency in the amount of adhesive material that is used to attach the shaft to the golf club head, and reduces the assembly time.

Abstract: A golf clubhead containing a main body and a face member, the main body including a main shell portion having a hollow and a tubular inner extension of a hosel protruding in the hollow, and at least a part of the tubular inner extension separating from the inner surface of the main shell portion. A method of making the golf clubhead which includes making a first lost form corresponding to the main shell portion, making a second lost form corresponding to the tubular inner extension, fixing the second lost form to the first lost form to make a third lost form corresponding to the main body, making a casting mold using the third lost form, and casting a metallic material into the main body using the casting mold.

Abstract: A method and apparatus for prescribing overall club length for iron-type golf clubs for an individual player wherein the method comprises measuring the erect height (PH) of a player to be fitted, providing the player with a fitting ball club (FBC) having a spherical ball with a hosel bore therein, one end of a golf club shaft in the hosel bore and a golf club grip on the other end of the shaft, having the player hold the fitting ball club in address position as if about to hit a golf ball therewith, measuring the wrist-to-floor distance (WFM) vertically from the player's higher wrist to the floor, locating in the first two columns of the FIG. 4 table data corresponding to the PH and WFM measurements, respectively, for the player, deriving an incremental length LCC from the third, length control club column of FIG. 4, and adding that incremental LCC length to 37½ inches, thereby giving a prescribed overall club length for that player.

Abstract: A metal wood-type golf club has a hollow body with a hosel bore disposed in the heel end. A hosel bore weight, selected from a plurality of hosel bore weights of different mass, is inserted into the bottom end of the hosel bore. Thereafter, the tip of a golf club shaft is inserted into the hosel bore and secured to the head to finish the club. The hosel bore weights preferably comprise weights of substantially identical size and shape adapted to conform to the interior surface of the bottom end of the hosel bore with the mass of the hosel bore weights being adjusted by varying their density.

Abstract: A golf club driver head comprised of a hollow body shell of a standard golf club driver shape. This shape has a front impact face plate, a bottom sole plate, a top crown shell, a curved rear wall, a heel, a toe, and a cylindrical hosel, which extends from the face, crown, and heel junction to attach to a shaft. This body is composed completely from cast or machined billet magnesium alloy. The body shell thickness is generally thicker than that in equivalent locations of metallic and other alloy driver heads of the same head volume. The face plate is thicker than that in the remainder of the body to provide a lower deflection surface, improve durability, and to maintain a forward center of gravity. The result of such a large head is a much larger hitting sweet spot and corresponding increased driver accuracy and control.

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 is provided in which a front heel face of the club defines a bore for receiving one end of a hosel, the hosel defining a substantially right angled bend. A free end of the hosel engages the putter shaft. The hosel provides a desired offset distance from the club strike face. Rotation of the hosel relative to the bore also provides an adjustment mechanism by which the lie angle and face balancing of the club may be achieved. Shaft inserts are also provided to adjust lie angles and offset distances.

Abstract: A hollow iron clubhead having a low center of gravity and enabling free selection of a material for the clubface can be readily produced by press working. The hollow iron clubhead mainly comprises a clubface member, a front body member and a rear body member. A blank for forming the clubface member, a blank for forming the front body member and a blank for forming the rear body member are prepared by blanking. The clubface blank and the front body blank are integrally welded together and shaped by hot drawing to form the front body member. The rear body blank is shaped by hot drawing to form the rear body member. The front body member and the rear body member are integrally joined together by welding.

Abstract: A golf club head having a stamped metal cup-shaped front section welded to a cast body, and a split hosel comprising upper and lower hosel elements, both integrally cast within the body of the club head for reduction of weight in the hosel area. The lower hosel element including varying boss members for receiving the bottom of a shaft. Each individual boss member having a shaft opening corresponding to a pre-determined club lie and club face angle.

Abstract: A golf club head having a split hosel comprising upper and lower hosel elements, both integrally cast within the body of the club head for reduction of weight in the hosel area. The lower hosel element having a boss member for receiving the bottom of a shaft. The boss member being variably disposed at a pre-determined position in th elower hosel to provide both a pre-selected club lie and a club face angle. The body therefore having a universal casting with only the welding of the boss into the lower hosel element being varied. The toe portion of the cast body forming a section of the front face surface thereby removing welding away from the aesthetically critical toe portion and easing buffing and polishing procedures in the toe portion in addition to providing structural integrity to the club head.

Abstract: A round, substantially uniform diameter tubular golf club shaft of simplified configuration, having interchangeable butt and tip ends, either of said ends adapted to fit and directly attach to the external surface of a standard female hosel of a golf clubhead or to fit and directly attach to a standard golf club grip.

Abstract: A golf club head (20) having a body (22) with a front wall (30) with an opening (32) and a striking plate insert (40) is disclosed herein. The golf club head (20) has a volume between 370 cubic centimeters and 425 cubic centimeters. The golf club head (20) has a mass between 140 grams and 215 grams. The golf club head (20) has a moment of inertia, Izz, about the Z axis through the center of gravity of the golf club head ranging from 3200 g-cm2 to 3900 g-cm2.

Abstract: A golf putter head having a rearward center of gravity. The head comprises a body having a face portion, a sole portion and an aft-mass portion, where the body is at least partially made from a first material. The putter head also has a cap made from a second material having a lower density than the first material. The body and cap define a void and the center of gravity of the putter head is within the void.

Abstract: A shot control hosel is disclosed for customizing golf clubs. The disclosed embodiments of the invention provide a set of hosels, each hosel having a conical body. The body has a central axis, a top portion and a bottom portion. A cylindrical opening extends from the top portion to the bottom portion and is adapted to accommodate a golf club shaft. A flange may be provided on the body and may be adapted to engage a notch within a bore of a golf club head. A resilient barb on the smaller of the top portion and the bottom portion is provided to secure the hosel within the bore.

Abstract: A temporary shaft-component connection for assembling a selected golf club shaft with a club head and/or hand grip segment, to facilitate custom club design and fitting to suit the needs and preferences of an individual golfer. The temporary shaft-component connection is particularly designed for use with nonmetallic club shafts formed from a graphite-based composite material or the like having a range of different lengths and stiffness (whip) characteristics. In a shaft-head connection, a metal adapter insert is mounted onto a lower end of the club shaft and includes one or more flat surfaces for reception into a matingly shaped socket in the hosel of a selected club head to prevent relative rotation between the club shaft and head. A compression nut carried on the shaft is threaded onto the hosel to axially engage and retain a thrust flange on the shaft or adapter or adapter insert, to prevent axial separation of the club head and shaft.

Abstract: A golf club head adapted for attachment to a shaft is provided. The head includes a first portion that forms an integral face and neck, with the neck having a keyed section. A second portion of the club head provides a body with a crown region and a sole region, the crown region including a keyway. A third portion is also provided in the form of a hosel tube with a top end being configured and dimensioned to receive the shaft. The hosel tube is received in the neck and fixed thereto. The first portion is fixed to the body to form a cavity, with the keyed section mating with the keyway.

Abstract: A golf club head having a stamped metal cup-shaped front section welded to a cast body. Crown/face and sole/face transition seams included within the front section at a distance away from the welding site. The front section including a wing element extending around and below the hosel. The front section formed from a single sheet metal plate. A split hosel comprising upper and lower hosel elements, both integrally cast within the body of the club head for reduction of weight in the hosel area. The lower hosel element including a boss member for receiving the bottom of a shaft. The boss member being variably disposed at a pre-determined position to provide both a pre-selected club lie and a club face angle. The body having a universal casting with only the welding of the boss into the lower hosel element being varied.

Abstract: A golf putter and method of making a putter is provided in which a front heel face of the putter defines a bore for receiving one end of a hosel, the hosel defining a substantially right angled bend. A free end of the hosel engages the putter shaft. The hosel provides a desired offset distance from the club strike face. Rotation of the hosel relative to the bore also provides an adjustment mechanism by which the lie angle and face balancing of the club may be achieved.

Abstract: Disclosed herein is a golf club head comprising a forged face cup, which comprises a hitting face and at least one sidewall, a cast member, and a stamped member, wherein the face cup, the cast member and the stamped member are welded together to form the golf club head. The hitting face and the at least one sidewall form a face cup. The hitting face may have a thickened central portion and a relatively thinner intermediate region. The hitting face defines a rectangular area of about 0.5 inch by 1.0 inch, and wherein initial ball speeds generated by the golf club head impacting golf balls are within 2% of a peak initial ball speed within the rectangle.

Abstract: Golf clubs, of putter and wood-type especially, each include an attachment between shaft and club head which is of a compliance to allow the club head to behave more closely as a ‘free-body’ in providing vertical gear-effect when striking the ball. The compliance is related to freeing the club head for rotation about an axis 35 which extends through the center of mass 31 with an orientation perpendicular to the shaft axis 37 in a plane parallel to the shaft axis 37 and containing the heel-toe axis 34 through the center of mass 31. In this regard, the compliance about axis 35 is not less than the force-couple bending compliance of a length of 1000/K, or 3000/K, or more preferably 10000/K, millimetres of the shaft measured from the tip-end. The rotational axis 35 is spaced by less than 0.33 K millimetres, or not more than 4,25 or less than 2 millimetres, from the shaft axis 37.

Abstract: A slotted hosel and related attachment system and method are provided for securely affixing a golf club head to the end of a golf club shaft. The hosel is formed to extend generally upwardly from a heel end of the club head and has a generally cylindrical shape defining an upwardly open hosel bore. At least one and preferably multiple laterally open slots are formed in the hosel to reduce the weight thereof. A relatively thin-walled liner sleeve is slide-fitted into the hosel bore and thereafter expanded to form dimples therein protruding outwardly into secure mechanical interlocking relation with the hosel. The end of the club shaft is thereafter slide-fitted into the liner sleeve and securely affixed therein by epoxy or the like.

Abstract: A putter comprising a grip having an anatomically correct shape to promote proper grasping of the putter, a shaft having a first end and a second end, wherein the grip is attached to the first end of the shaft, a hosel attached to the second end of the shaft, a head attached to the hosel, the head having a striking face, and an alignment feature of the putter adapted to ensure correct assembly of the head onto the shaft.

Abstract: An adjustable weight retention assembly comprising a hollow body having first outer diameter and a proximal and distal end; a flange abutting the proximal end having a second outer diameter greater larger than the first; and a plurality of concentric rings circumscribing the hollow body; wherein the assembly is formed of a high specific gravity polymer composition. A set of golf clubs containing a plurality of adjustable weight retention assemblies, as well as a set of adjustable weight retention assemblies are also described.

Abstract: A golf club head for use in a golf club. The club head has a moulded main body with weighted inserts to improve striking characteristics. The club head includes a shaft anchoring element to attach the club head to a golf club shaft. In one embodiment the club head includes a hardened insert to form a striking face on the golf club. In a further embodiment, the golf club head is formed during a two-step process, first the moulding of a main body, then, the moulding of a insert to form a front face.

Abstract: A golf club is provided which includes a metal wood club head with a hosel receiving tube that extends from the neck to the sole, and a hosel configured and dimensioned to be received in the hosel receiving tube. The club shaft is received in a bore in the hosel, which may be oriented to produce a desired lie angle and loft. The hosel has an oblong and tapered geometry and is insertable into the tube bore from the sole. The hosel may positively engage the club head, and a ferrule also may be included.

Abstract: The hosel of a club may be bent to change lie, loft and face angle of clubs made of 431; 17-4 and 15-5 stainless steel. These may be bent to a maximum of two degrees. Nickel and iron clubs may be bent to bend a maximum of four degrees. Club not bendable for lie, loft, and face angle are short based clubs; no hosel metal clubs; and any club heads made of tilatium, tri-alloy, ceomets, duralomium, graphite, wood and other materials to brittle to bend. 17-4 and 15-5 stainless are considered not bendable for most club makers because they require special bending equipment. The lie, loft and face angle of all non-bendable clubs may be changed by using the Club Link.

Abstract: An iron golf club with a head whose center of gravity is easy to adjust, preventing the center of gravity from being biased toward a hosel or a heel. A head body 8 includes a face 3 in a front, a heel 6 at a lower portion of a first side of the face 3 and a hosel 7 above the heel 6. A shaft 2 is connected to the hosel 7 that is formed with a hollow portion 9. By forming the hollow portion 9 that way, it becomes easier to adjust the center of gravity of the head 1, preventing the center of gravity from being biased toward the hosel 7 and the heel 6. To prevent the increase of weight of the hosel 7 eventually leads to preventing the center of gravity of the head 1 from getting too high.

Abstract: A golf club head adapted for attachment to a shaft is provided. The head includes a first portion that forms an integral face and neck, with the neck having a keyed section. A second portion of the club head provides a body with a crown region and a sole region, the crown region including a keyway. A third portion is also provided in the form of a hosel tube with a top end being configured and dimensioned to receive the shaft. The hosel tube is received in the neck and fixed thereto. The first portion is fixed to the body to form a cavity, with the keyed section mating with the keyway.

Abstract: A golf club having a sufficiently high strength in a welded portion even if a material that should avoid heat treatment is used. A reinforcing plate 21 is provided in a portion where a face member 16 is welded to a sole 4 of a head 1. Even if Ti15-5-3 whose toughness is lowered due to changes in tissues caused by welding heat, sufficiently high strength can be obtained in the welded portion.

Abstract: A golf club is provided which includes a metal wood club head with a hosel receiving tube that extends from the neck to the sole, and a hosel configured and dimensioned to be received in the hosel receiving tube. The club shaft is received in a bore in the hosel, which may be oriented to produce a desired lie angle and loft. The hosel has an oblong and tapered geometry and is insertable into the tube bore from the sole. The hosel may positively engage the club head, and a ferrule also may be included.

Abstract: A golf putter is provided. The putter is made of a substantially large (between 25 and 45 mm diameter) parallel thin walled shaft wherein part of the bare shaft forms the grip. A protruding curved end cap forms part of the grip to assist in consistency of positioning the hands when taking a grip of the putter. A thin walled end plate closes off the shaft to the putter head all being designed to maximize “feel” when strokiing the ball.

Abstract: A golf putter is provided. The putter is made of a substantially large (between 25 and 45 mm diameter) parallel thin walled shaft wherein part of the bare shaft forms the grip. A protruding curved end cap forms part of the grip to assist in consistency of positioning the hands when taking a grip of the putter. A thin walled end plate closes off the shaft to the putter head all being designed to maximize “feel” when stroking the ball.

Abstract: A golf club head adapted for attachment to a shaft is provided. The head includes a first portion that forms an integral face and neck, with the neck having a keyed section. A second portion of the club head provides a body with a crown region and a sole region, the crown region including a keyway. A third portion is also provided in the form of a hosel tube with a top end being configured and dimensioned to receive the shaft. The hosel tube is received in the neck and fixed thereto. The first portion is fixed to the body to form a cavity, with the keyed section mating with the keyway.

Abstract: A golf putter is provided. The golf putter includes a head having a cavity. An insert member is supported within the cavity by Neoprene resilient O-rings and a shaft or hosel member is connected to the insert. Because the insert member is insulated from the head by the resilient O-rings, less impact energy is dissipated within the head. The insert member is arranged to be at the sweet spot of the head.

Abstract: A golf club head of the present invention is the one in which a head main body of a hollow structure is formed of; a face portion having a face surface; the crown portion adjacent to the face portion; and a sole portion adjacent to the face portion, a through hole for inserting a shaft into the crown portion is provided, the hosel portion for supporting a tip portion of the shaft is joined to a back surface of the face portion, and the hosel portion is made to be in a non-contact state with the crown portion.

Abstract: A golf putter including a head attached rigidly to a shaft through the center of mass to minimize lateral rotation and to promote a pendulum like stroke, having optimized mass and shape to create a powerful “sweet spot” enabling consistent distance control, superior “feel” and increased “touch” while providing tangible “forgiveness” for random changes in dynamics introduced by less skilled players; the head having a continuous face comprised of a non-radial contour to provide improved rebound trajectory by initiating overspin and minimizing outside effects on the ball until all gyroscopic properties allow it to become a stabilized mass. The head includes a narrow sole to decrease drag, a doze to brush back taller grass, increasing the odds of making putts launched from less manicured greens or fringe areas, and semi circular markings approximating the radius of a golf ball to enable alignment of the ball with the “sweet spot”.

Abstract: A golf club having a transparent hosel is provided. The ends of the hosel may further include connecting portions adapted to receive the connecting portions of a shaft and clubhead. The connecting portions may include an inner post and an outer sheath adapted to form an interference fit with the connecting portions of the shaft or clubhead.

Abstract: A golf club head of the present invention. A cast head body 31 is constituted by a hollow outer shell. Said hollow outer shell define a top portion 35, a sole portion 37, a heel wall 45, a toe portion 39 and a face opening portion 33. A shaft securing portion 43 is formed adjacent to the heel wall and extended from the top portion to the sole portion. And a first hollow portion 47 is formed between the shaft securing portion and the heel wall of the head body.

Abstract: The present invention relates to golf clubs, more particularly to a stabilized golf club that accounts for human factors in its design and configuration. In accordance with one embodiment a berish bracket is attached to two points on a club head for increased controllability The shaft attaches to the berish and provides the force necessary to propel the ball forward but, due to the configuration of the berish bracket, the forces is applied at two points along the club head. In accordance with another embodiment, the club shaft is configured to point forward of the moment of mass of the club head, thereby further increasing controllability In accordance with other embodiments, a configurable knuckle is configured between the club shaft and the berish bracket for is optimizing controllability for an individual golfer.

Abstract: Disclosed is a golf club head in which a mass-adjusting weight is inserted into the inside of a cylindrical hosel portion, wherein a flange that can be deformed in a radial direction of the hosel portion is formed in a peripheral portion of the foregoing weight and the diameter of the flange is increased so as to fix the foregoing weight to the foregoing hosel portion.

Abstract: A golf club where the center axis of a shaft is precisely aligned to that of a head when connecting the shaft to the head, with improved bonding strength therebetween. A shaft insertion hole 7 is formed on a distal end face 6A of a hosel 6 of a head 2. A shaft 3 is inserted into the hole 7 and is bonded thereto with an adhesive 10. An enlarged portion 8 is formed, which is in the form of a chamfered portion with a peripheral slope formed at an opening portion of the hole 7. The enlarged portion 8 is provided with a ring body 11, while the shaft 3 is inserted into a through-hole 12 formed in the ring body 11. As the shaft 3 is inserted to penetrate through the through-hole 12 of the ring body 11, the shaft 3 is held by the ring body 11 in place within the enlarged portion 8 so that a uniform gap between a distal portion 3A of the shaft 3 and the hole 7 is insured and the thickness of an adhesive can be distributed uniformly. Also, various angles of a golf club such as a lie angle can be formed accurately.

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 damping connector for golf club, which has a bridge abutted the first and second halves of the golf club, a first protrusion inserted into the first half of the golf club and a second protrusion inserted into the second half of the golf club. With such an arrangement, the golf club has excellent, yet stable flexibility to deflect so as to have consistent shot.

Abstract: A golf club has a shaft, a connecting pin, a pin and a nut. One end of the connecting pin is securely inserted into the shaft, the other end of the connecting pin is threaded and is exposed from the shaft. The head is mounted on the shaft and has a neck with a passage for the shaft inserting into the passage in the neck. A baffle formed in the passage in the neck and has a through hole for the connecting pin extending through the through hole. The nut is screwed with the thread on the connecting pin and abuts the baffle. Consequently, the head is securely attached to the shaft with the connecting pin and the nut. With such an arrangement, the head is adjustable relative to the shaft prior to an adhesion process.

Abstract: A golf club head is formed of a metal shell, a metal neck tube, and a metal ball-hitting plate. The shell is provided with a neck seat having a through hole in communication with the hollow interior of the shell. The neck tube is lodged in the through hole of the neck seat such that the outer end of the neck tube forms with the neck seat a neck portion of the golf club head. The shell is further provided on the outer surface with an open space corresponding in shape to the ball-hitting plate. The ball-hitting plate is fused with the shell by brazing such that the ball-hitting plate covers the open space of the shell. The shell is made by casting. The neck tube is made by a mechanical process. The ball-hitting plate is made by forging, or punching and pressing.

Abstract: A golf club head comprises a head portion and a neck portion which has a cross section with a flexible section. The longitudinal direction of the cross section of the flexible section and the heel-toe direction of the golf club head form an angle ranging between zero and 90 degrees. In light of the short axial direction of the cross section of the flexible section having a better flexibility, when the golf club head hits a ball, the flexibility in the left front direction or the right front direction is better than other direction. The ball has a tendency to travel along the predetermined side so as to correct the golfer's habit to hit the ball to travel in other side.

Abstract: The method and apparatus of the present invention includes an alignment base for receiving a golf club head, an injector for injecting an adhesive material into a bore of the golf club head, and a rotating mechanism for holding and rotating a shaft for attachment to the golf club head. The present invention allows for greater efficiency in the amount of adhesive material that is used to attach the shaft to the golf club head, and reduces the assembly time.

Abstract: A golf club having an interior hosel that is disposed inward from a striking plate to allow for compliance of the striking plate during impact with a golf ball. The present invention also includes a method for producing the golf club in which the interior hosel is attached to a lateral extension of a face member. The lateral extension is connected to the striking plate. The striking plate is preferably composed of a forged titanium material.