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 is disclosed. The golf club head includes a body having a front face, a rear face, a top and a bottom. The club head also includes a viscoelastic member positioned within the body and in direct contact with the front face of the body. The viscoelastic member counters force applied to the front face of the body when a golf ball is struck.

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: Metal wood and wood clubs with a “swing-weight housing” using “variable swing-weights” creating a variable swingweight”, an “automatic counterbalancing” effect and “varied center of gravity” effects in addition to an increased trajectory and shot distance to the golf ball when hit. The “swing-weights” are housed in a “swing-weight housing” within the golf club cavity. On address, the club head total weight is the “swing-weights” plus the club head. On the upswing the “swing-weights” travel from the “swing-weight housing” through the hosel cavity, into the hollow shaft, coming to rest in the grip end of the hollow shaft. On the downswing the “swing-weights” reverses its travel to the club head, picking up momentum and slightly increasing club head speed.

Abstract: A golf club head for increasing the distance a golf ball travels after being struck with the golf club head. The golf club head includes a body with a striking face and a back face. The body has a cavity therein that has a forwards face adjacent the striking face of the body and a rearwards face adjacent the back face of the body. A block is disposed in the cavity of the body. The block has opposite first and second faces. The first face of the block faces the forwards face of the cavity and the second face of the block faces the rearwards face of the cavity. The block is biased towards the rearwards face of the cavity so that the block is biased to a position where the first face of the block is spaced apart from the forwards face of the cavity.

Abstract: A golf putter includes a club head and an upstanding shaft having a lower hosel end removably supported on the club head. Structure is provided for selectively locating the hosel in multiple selected positions spaced apart in front-to-rear and transversely extending paths on the club head, as well as structure for selective weighting of the club head both forward and rearward of the selected hosel position on the club head. Further structure is provided for selective spring biased live weighting of the club head and still further structure is provided for selective additional dead weighting of the club head laterally of the shaft hosel portion.

Abstract: A golf club, which can increase the carry of a ball without increasing the shaft length, has a hollow head in which are mounted a weight and a mechanism for resiliently pressing the weight against the inner surface of the face of the head. In one embodiment, during a forward swing of the club, the weight separates while compressing a spring due to static inertia. When the head impacts the ball, the face dents momentarily and the weight hits against the dented face.

Abstract: Non-conventional clubhead designs for driver, fairway clubs (woods), irons, and putter type golf clubs wherein the maximum (optimized) clubhead mass and centralized balance/momentum control mechanism are coincident with the clubhead center of percussion improved efficacy in the angular of momentum exchange between golf club and ball at impact, and optimum flight trajectory, distance, accuracy, and control. Additional non-conventional design features of the driver and fairway clubs (woods) include a low drag aerodynamic profile, fully-active double curvature aerodynamic wing, integral impact shock/vibratory damping, a double curvature faceplate that is insensitive to fracture and cave-in, and a highly contoured soleplate for up-hill and down-hill lies.

Abstract: A golf club of the invention is basically formed of a head, grip and shaft for connecting the head and grip. The head of the golf club has a sweet spot on a face surface thereof. A hollow passage extending through the grip, shaft and head is formed in the golf club, and reaches a location behind the sweet spot at the face surface of the head. Weighted materials, such as iron beads are contained in the hollow passage. When the golf club is swung to a top of back swing, the iron beads are positioned adjacent the forward end of the grip, i.e., such as the lowest end of the golf club. However, when the golf club is swung to a point of impact, the iron beads, or other materials reach the sweet spot at a high speed in receipt of a centrifugal force of the golf club to thereby increase a driving force to be applied to a ball. Thus, a flying distance of the ball can be greatly increased without changing the exterior shape or material of the face surface of the head.

Abstract: A centroid-adjustable golf club head, which can enable a user to strike ball more stably and accurately, is disclosed. The centroid-adjustable golf club head includes a head body, a sphericity, a floating ball and liquid with large specific weight. The head body has anti vibration and thermoplastic elastomer disposed therein and defines a screw hole at a top thereof. The sphericity is disposed in the anti vibration and thermoplastic elastomer of the head body. The sphericity has a charging spout formed on a top thereof and aligned with the screw hole of the head body; and a elastic wafer disposed between the head body and the sphericity. The floating ball is disposed in the sphericity. The liquid with large specific weight is fed from the charging spout to the sphericity. With this arrangement, the centroid of the club head can be adjusted to an appropriate position, depending to the relative position of the liquid and the floating ball.

Abstract: A momentum generating golf club (10) comprising an elongated shaft (12). A resilient grip (14) is on a top end of the elongated shaft (12), while a club head body (16) is on a bottom end of the elongated shaft (12). The club head body (16) has a front striking face (18) and an internal chamber (20). A weight (22) is located within the internal chamber (20) for free movement therein. When a golfer takes a back swing the weight (22) will move backwards in the internal chamber (20), to produce inertia in the direction of the back swing of the club head body (16) to increase the extent of the back swing, thus allowing for a higher speed of the club head body (16) in the forward swing of the golf club (10), so as to hit a golf ball further on the front striking face (18).

Abstract: An improved golf club head, specifically for a putter, which has a conventional putting face on the front and two cantilevered fins connected on the back of the putter head. The fins are oriented perpendicularly to the putting face, extending to the back of the putter, so that one is connected adjacent the top of the putter head and the other adjacent the bottom of the putter head. The fins are partially connected to the putter along the tapered part of the fin, allowing the large part of the fin not to be directly attached to the putter's back face. The upper fin is connected to one end of the putter's back face and the lower fin is connected to the other end of the putter's back face, thereby locating the center of mass of the fin arrangement along the vertical center line of the putter's back face.

Abstract: Sports equipment for ball games comprising a stroke portion and a shaft portion including a grip, in particular a tennis racket or a golf club, wherein mass particles are integrated into the equipment structure which are freely displaceable or freely movable thereto and which are provided in one or a plurality of chambers the volume of each of said chambers being small relative to the interior volume of the stroke and/or the shaft portion. The stroke characteristics of the sports equipment can be varied depending from the distribution of the chambers within the structure and/or from the amount of the mass particles used. Stroke shocks are attenuated with the result that occurrence of "tennis elbow" is diminished. Indicated is also a method for the manufacture of a tennis racket having high shock absorption and good oscillation attenuation properties and being manufactured in fiber-plastics-structure techniques.