Abstract: A golf club, and particularly a putter, is provided with an alignment line which extends along a length of the putter shaft and a length of the putter head. The alignment line is disposed in a plane perpendicular to the axis of the shaft and parallel to the face of the putter head and allows a golfer to align the face of the club perpendicular to an imaginary line along which a golf ball is to be driven. The body of the putter head is a skeletal frame and is covered with a plastic coating to fill up the openings in the body and provide a flat striking surface.

Abstract: A metal-wood golf club having a removable sole plate that exposes a recessed cavity or multiple recessed cavities within the sole, into which lead tape or another suitable weighting material can be inserted to achieve precise weight distribution and modifying the center of gravity within the head. All added weight is in the sole, below the original center of gravity, making the club easier to hit. This system allows the custom clubmaker, or the individual golfer, to add weight in the center, toward the toe, heel, face, rear, or any combination thereof within the clubhead in order to adjust the club's center of gravity to the golfer's particular swing characteristics. Once the weight or weights have been added, the sole plate cover is reattached by means of a locking screw that covers, protects, and secures the weights in place within the recessed cavity.

Abstract: The use of hot pressing for weighting of a golf club head is disclosed herein. The preferred weighting material is a multiple component material that includes a high-density component and a binding component. A preferred multiple component material includes tungsten and tin. The hot pressing process is performed in an open air environment at standard atmospheric conditions.

Abstract: A modular-design putter head, having an extruded main body with detachable, heat treated face and hosel bracket. A unique floating-face feature imparts a trampoline effect when a ball is struck. A flexible hosel, fastened at two points at the rear of the main body acts as a spring for softer touch. Acoustical properties are enhanced with an internal echo chamber which can be filled with foam. A further departure of the traditional putter design and method of manufacture involve the use of extruded metal to form the main putter head. The extruded stock can be cut to desired lengths allowing for economical production of different weight putter heads.

Abstract: A putter head fashioned from a block metal having a conventional face, but having a mass relieved portion behind the face, with greatest mass relief at the sole of the club and a lesser amount of mass relief extending upwardly to the top surface of the club which has conventional dimensions and shape. Since the greatest amount of mass relief is at the bottom of the club, the mass relief is said to be inverted. A pair of inclined ribs behind the central portion of the face add stiffness to the club. The club has a raised center of gravity intended to be in alignment with the center of a golf ball. A plug of heavy metal may be centered on the center of gravity to add stiffness at the zone. Although the club would typically be made out of aluminum or steel, a club, without the plug, could be made of an ultra heavy metal, such as depleted uranium, and be no heavier than a regular club due to the inverted mass relief.

Abstract: The use of hot pressing for weighting of a golf club head is disclosed herein. The preferred weighting material is a multiple component material that includes a high-density component and a binding component. A preferred multiple component material includes tungsten and tin. The hot pressing process is performed in an open air environment at standard atmospheric conditions.

Abstract: A golf club, the body of the club head is constructed from a first material and has a center of gravity and is adapted to receive a weight member, at least one weight member constructed from a second material having a density greater than that of the first material, the weight member having a center of gravity and is securely received in the club head body in a manner so that the center of gravity of the weight member is positioned below the center of gravity of the club head body.

Abstract: A golf club head with resilient bodies is designed by introducing a concept of movable body to build a casing including a faceplate and a limitation stopper, then dispose at least a resilient element inside for connecting and positioning the casing with a main housing of club head to thereby complete a resilient golf club head. The novel golf club head is taking advantage of buffer function of the enclosed resilient element to have defects of the conventional golf club head eliminated and provide a secondary auxiliary elastic force, reduce resistant force, and offer stable displacement of the center of gravity of the club head.

Abstract: A golf club head includes a plurality of exterior walls which define a hollow interior cavity. The golf club head further includes an interior wall structure extending from one of the walls into the interior cavity. The interior wall structure defines a chamber therein. The chamber contains a flowable weighted material and a lighter weight flowable filler material. Both the weighted and the filler materials can be inserted and removed from the chamber through an aperture in the wall.

Abstract: A golf putter constructed to appear to be completely constructed from an elastrometric material. The putter has a putter head molded from urethane material and constructed so that it appears to have to be constructed entirely of that material. The putter preferably is color coordinated so that the putter may match a desired motif.

Abstract: An apparatus allows a golfer to improve his or her swing. A striking pin is mounted on a club head using a rigid bracket. The golfer swings so as to strike a golf ball with an end surface of the striking pin. Progressively smaller striking pin end surface areas may be used. After practicing using the striking pin, a golfer removes the striking pin and continues with normal play.

Abstract: An iron golf club which enables a further fine adjustment of the weight balance, moment of inertia and the like of a head. Four vertical balance weights 11A, 11B, 11C and 11D are disposed on different positions on a rear face 10, respectively. The first and fourth vertical balance weights 11A and 11D of larger specific gravity are provided on a toe or heel side of the rear face 10A. In the center of the rear face 10A are provided the second and third vertical balance weights 11B and 11C of smaller specific gravity. Through the combination of the balance weights 11A, 11B, 11C and 11D of various shapes and specific gravity, the weight balance of the head 1 can be freely adjusted. Also, the position of the center of gravity of the head 1 can be positioned backwards, thus enlarging the sweet area. In addition, as the denser balance weights 11A and 11D are provided near the toe 7 or the heel 6, the toe 7 and heel 6 of the head 1 can be weighted.

Abstract: An iron type golf club head includes a body having a front face arranged for impact with a golf ball, a back face, a heel portion and toe portion. A perimeter weighting element protrudes rearwardly from the front face and defines a primary cavity in the back face of the body. The perimeter weighting element includes a top rail and a sole which extend between the body heel and toe portions along an upper portion and a lower portion, respectively, of the body. An interior wall extends from a first end located adjacent the body heel portion through the primary cavity between the top rail and the sole to a second end located adjacent the body toe portion. The interior wall defines a secondary cavity within the primary cavity, and a weight adjustment member is disposed in the secondary cavity. The weight adjustment member is selected from a plurality of weight adjustment members and is used to overcome manufacturing tolerances and to adjust golf club swingweights.

Abstract: A golf club such as so-called metal wood, enabling a separate balance weight to be joined easily and firmly to a head body made of titanium or titanium alloy. A receiving base 22 made of titanium or titanium alloy is provided between a balance weight 21 and a body shell member 18 which forms the head body. The balance weight 21 is joined to the receiving base 22 by caulking, then the receiving base 22 is welded to the inside face of the body shell member 18. Thus, in welding the balance weight 21 to the body shell member 18, there is no longer any limitation to the material of the balance weight 21. In a preferred form of the invention, the balance weight 21 is caulked to the receiving body by pressing the balance weight 21 into a recess 24 formed in the receiving base 22, with a claw portion 25 formed in the receiving base 22 cutting into the balance weight 21.

Abstract: Disclosed is a set of golf clubs. The clubs are divided into at least a first group and at least a second group of golf clubs. The first group desirably comprises a plurality of club heads each having a main body of low density metallic material. The second group of golf clubs desirably comprises a plurality of club heads each having a main body of higher density metallic material than the density of the metallic material of the main body of each of the heads of the first group. The first group of clubs desirably comprises lower numbered clubs than the second group of clubs.

Abstract: A metalwood type golf club head is disclosed including an reinforcing outer support band which provides additional strength and mass on outer surfaces of the club head and further includes an elongated weighted insert formed with said reinforcing band to add additional weight to outer peripheral surfaces of the club head.

Abstract: A golf club having a hosel that is permanently connected to a sole plate, traverses the club head, and is attached to the shaft. The sole plate is attaches to the bottom of the club head and a replaceable striking surface attaches to the front of the club head.

Abstract: A golf club head has a perimeter formed by bending a tube into a desired perimeter shape, and securing a member over at least part of the loop to at least cover the loop opening and form the striking face. At least one plug of weighting material fills a portion of the tube at a predetermined location on the loop to form a weighted portion. Successive plugs of the weighting material and a lighter weight material may completely fill the tubular loop. Each plug is inserted while the material is in a flowable condition and the loop is held in a suitable orientation based on the location of the plug. The material is allowed to harden before adding the next plug.

Abstract: A cavity back type head golf club which can prevent distortion of the face at the time of striking the ball, and improve attractiveness. A cover 17 is fixed to a head body 16 having a cavity 18 on a rear side, to cover the rear face opening of the cavity 18. The method of fixing involves fixing by pressing. The cover 17 is pressed into a spot facing 21 of the head body 16, to give a dovetail joint. If the cavity 18 is made by machining, then even if machining marks remain, these cannot be seen.

Abstract: A golf club head (1) whose volume is delimited by a crown (3), a sole-plate (11), a belt (4), and a hitting surface (2), junctions between the belt (4) and the hitting surface (2) delimiting a heel (9) and a toe (10). The belt (4) comprises at least one arc-shaped portion (8, 32, 33, 34, 35) which forms a visible layer of the belt (4), while extending along the belt (4) between the heel (9) and the tip (10), the arc-shaped portion (8, 32, 33, 34, 35) being a peripheral weight made of a high-density material.

Abstract: The present invention provides for golf clubs, in particular woods, which include a three dimensional weighting system including at least two weight ports which are attached to the outside of the clubhead. The weights are directly axially aligned to, and form an equilateral triangle with the clubs center of gravity. The weights are preferably located in close proximity to the sole plate of the club in the rear toe and heel position. The two double sided, from top to bottom weights, facilitate vertical, horizontal and lateral movement of the club's center of gravity. The weights are made of various densities which can easily be interchanged to make the club lighter or heavier. This weighting system allows for individual customization of the club to increase or decrease the hooking or slicing of the ball. It also enables the club to have the greatest possible expansion of the moment of inertia, as well as the ability to lower or raise the clubs center of gravity to customize shot trajectory.

Abstract: The invention relates a golf club head with a structure which can stabilize the direction of the hit ball and can enhance a ball hitting feeling. In the golf club head, a recessed portion is formed in a face portion of a head main body formed of metal with the peripheral edge portion of the face portion remaining unrecessed. A face plate formed of material smaller in specific gravity than the head main body is mounted to the recessed portion. A frame member formed of material larger in specific gravity than the head main body and softer than the face plate and head main body is held by and between the peripheral wall of the face plate and the peripheral wall of the recessed portion.

Abstract: An improved neck weighting structure for golf club heads includes a neck, a neck weighting and a weight chamber. The neck extends from a shaft mount towards the lower rim of the sole of the golf club head and straddles the lower rim of the sole to reduce the gravitational center of the club head. The neck weighting projects from the neck near the shaft mount to cause the gravitational center to deviate towards the extended line of the head. The weight chamber accommodates weights of various mass for correcting the position of the gravitational center.

Abstract: An iron type golf club head which comprises a head body having a ball-striking front face, a rear side, a top, a bottom, a toe, and a heel; a recess formed in the head body proximate the head body rear side and bottom; and an inset positioned in the recess; the head body having a weight W.sub.1 and the inset having a weight W.sub.2, and wherein W.sub.2 /(W.sub.1 +W.sub.2) is between about 0.25 and 0.90.

Abstract: A golf putter which can stably maintain the directional stability of its head while being swung so that a golf ball can be rolled accurately along an intended line. Side walls extend rearwardly from both ends of a face portion of the putter. Each side wall carries a weight at its rear end, so that the head is lighter at its face end than its rear end. Thus, the directional stability of the head while swinging the ball improves.

Abstract: A golf club head (1) whose volume is delimited by a crown (3), a sole-plate (11), a belt (4), and a hitting surface (2), junctions between the belt (4) and the hitting surface (2) delimiting a heel (9) and a toe (10). The belt (4) comprises at least one arcuate portion (8, 32, 33, 34, 35) which forms a visible layer of the belt (4), while extending along the belt (4) between the heel (9) and the tip (10), the arcuate portion (8, 32, 33, 34, 35) being a peripheral weight made of a high-density material.

Abstract: An improved golf club head includes a striking piece, a balance weight and a head body. The striking piece is made of titanium alloy by pressing and has a hitting plate and a connection portion integrally connected to the hitting plate for connecting with a golf shank. A bottom periphery of the hitting plate provides a toe portion extended outwardly. On a bottom surface of the hitting plate further affixes two nuts at two side locations thereof. The balance weight has a middle and two side protruding ribs extending upwardly according to the shape of the head body, in which each of the two side protruding ribs has a counter screw hole for receiving the two nuts and connecting with the hitting plate of the striking piece by screwing two screws through the two counter screw holes and the two nuts respectively. The head body has a hollow chamber for receiving the balance weight and is made of the same material as the striking piece. The head body also has an opening.

Abstract: In accordance with the present invention, a golf putter head is provided having a body portion which includes a front face having an opening which extends all the way from the front face through the body portion. An elastomeric material having a Durometer value to produce substantial resilience is located within this opening in such a manner that there is no metal backing for the elastomeric material. In one embodiment the opening extending inwardly from the front face also extends downwardly to the bottom surface of the putter to assist in locating the elastomeric material within the putter. In accordance with another embodiment of the invention the front face of the putter includes latterly spaced slots on either side of the opening. These slots further assist in locating the elastomeric material within the body portion. In another embodiment of the invention a pair of vertical walls are provided which are connected to a rear face of the body portion and are located perpendicular to the putting surface.

Abstract: A golf club head having an elongated weight formed adjacent the leading edge and located in a heel to toe direction.

Abstract: A golf putter with a novel head design consists of solid materials laminated horizontally to yield a single surface alignment aid on the surface that strikes the golf ball (the front face/face). Optional alignment markings on the top surface of the putter, centered over the point on the face where there in minimal torque when the head strikes the golf ball ("sweet spot"), combine with the single surface alignment aid on the face to form a single surface two-dimensional alignment system. The resilient nature of the solid materials used for the preferred embodiment of this putter head imparts a softer "feel" to the golfer, reduces skid of the ball after the ball is struck, and produces a light-weight club, allowing the golfer to use a fuller complete stroke for each putt, thereby improving precision and accuracy from putt to putt.

Abstract: An iron or putter golf club head having a larger sweet area and the lower center of gravity. Weights 12a and 13a of beryllium copper alloy are provided along peripheral portions of a head body 11a of titanium alloy at its face 1a and back 2a side respectively. Specifically, the back weight 13a has a weight-sole portion 20a integrally extending down to a sole 3a. The weight-sole portion 20a is widened at its toe and heel sides relative to its intermediate portion. Thus, the weight distribution of the head is capable of being greatly concenterated on the peripheral portion of the head to enlarge a sweet area. In addition, owing to the weight-sole portion 20a, the center of gravity can be effectively lowered.

Abstract: An iron or putter golf club head which enables the enlarging of a sweet area. In a peripheral portion of a back 2a of a head body 11a made of titanium alloy is formed an embedding groove 13a. Into the embedding groove 13a is press-fitted a balance weight 12a of beryllium copper alloy. The balance weight 12a has an integral extention 16a extending down to a sole of the head body 11a. After the press-fitting process, a cavity 18a is formed in an area of the back 2a surrounded by the balance weight 12a by milling. Owing to the annular balance weight and the cavity provided at the back 2a, the weight distribution of the head is capable of being greatly concenterated on the peripheral portion of the head. In addition, the above extension 16a enables the lowering of the center of gravity of the head body 11a, thus providing a golf club head with which balls are capable of being easily controlled.

Abstract: An iron or putter golf club head having a larger sweet area and the lowered center of gravity. A head body 11a made of pure titanium or titanium alloy is provided with three separate weights such as a back weight 12a, a face weight 13a and a sole weight 14a. The back weight 12a is annular, being positioned along a peripheral portion of a back 2a side. The face weight 13a is semi-annular, being positioned along the face la side except a top 4a side. The sole weight 14a is widened at its toe and heel side. Thus, the weight distribution of the head is greatly concentrated on the peripheral portion thereof to enlarge a sweet area. Particularly, the center of gravity of the head can be lowered owing to the sole weight 14a.

Abstract: The invention is related to a golf club head including an internal subassembly defining an inner space and including a combination of a rigid, hollow and open internal shell made of a low-density material, and an impact-resistant sealing element co-operating with the shell to close off the inner space and having an inner wall for supporting the striking surface of the head. The internal shell is covered by an outer plastic casing at least partially covering the internal subassembly and forming the outer wall of the striking surface.

Abstract: An adjustable golf putter provides configurable characteristics of striking face-to-shaft lateral alignment, center of gravity, shaft-to-head longitudinal alignment, head-to-shaft angle, total weight, weight distribution, and targeting. In a preferred embodiment, a golf club has a shaft attached to a putter head, the head having a hosel assembly and weight assemblies clamped between opposing face plates.