Abstract: A golf putting trainer, comprising:a. a first elongated member;b. a second elongated member which is positioned generally parallel to the first elongated member, and is spaced apart from the first elongated member;c. a connecting member which is positioned between the first elongated member and the second elongated member and which is connected to the first elongated member near a first end of the first elongated member, and is connected to the second elongated member near a first end of the second elongated member;d. a target which is slidably mounted to the connecting member and is in a slidable relationship with the connecting member, wherein the target is positioned between the first elongated member and the second elongated member.

Abstract: A golf ball made by adding bismuth, bismuth alloy or a mixture of bismuth alloy in bismuth to the resin compositions in amounts of 0.5-60 parts by weight per 100 parts by weight of the base resin of the said golf ball, which the carry extends farther than the other common golf balls without raising a hardness. It is because, as molding the said golf ball with the resin compositions which is added bismuth or bismuth alloy, cooling the moldings at a normal temperature after molding, bismuth or bismuth alloy gets solidified and expanded its volume by 3-3.5% and the organic polymeric materials grow dense as much as bismuth expands, that hold a lot of energy. Additionally, since this can be applied to all the core and the cover or selectively to each part, it is possible to make the golf balls with various properties that may give a satisfaction to all sorts of golfers. Furthermore, the golf balls according to the present invention is soft to the touch, which has a good hit feeling.

Abstract: A golf ball defining a spherical surface divided into spherical polyhedrons to form dimples thereon, characterized in that at least some of the dimples are connected to one another via air connection channels no more than 4 mm wide no more than 5 mm long, and no more than 1.2 mm deep the channel depth being less that 70% of the depth of the dimples.

Abstract: A golf training aid is adapted to be worn at the waist of a user and comprises a base and an engagement member mounted on the base for movement between a first inoperative position in which it lies against the base and a second operative position in which it extends outwardly of the base to be engaged by the arm of the user during the downward part of his golf swing. This teaches him to keep his elbow close to his body at this time.

Abstract: The present invention provides a device and method for assisting a person in achieving proper alignment. The device and method are particularly useful for achieving proper alignment for a golf stroke in which a golf ball is struck to move towards a target. In one embodiment, the device comprises a support member to be worn by the person. A light source is attached to the support member. The light source is adapted to generate a generally linear, visible alignment beam of light on the ground in front of the person when the person is in position to perform a task. The alignment beam is generally parallel to an alignment of the portion of the person's body upon which the support member is worn and, thus, provides an indication of such alignment readily visible to the user in real time.

Abstract: In a three-piece solid golf ball of the three layer structure consisting of a solid core, an intermediate layer, and a cover, the specific gravity of the solid core is lower than the specific gravity of the intermediate layer and the cover, and the Shore D hardness of the intermediate layer is higher than the Shore D hardness of the cover. The ball as a whole has an inertia moment of at least 83 g-cm.sup.2. The desirable properties of spin, feel, control and distance are obtained.

Abstract: An elongated clicker (1) attached to a base (2). The base is rigid enough to distribute the pressure of the clicker on the wrist via padding (11). It is made of a lightweight material such as molded plastic, and is attached to the wrist by an adjustable strap (6). The clicker has a slidable adjustment block (12) which distributes and positions the pressure of the clicker on the back of the hand for optimum comfort and selectable clicker timing.

Abstract: A golf club shaped swing training device provides visual indication of club position during a club swinging motion. A first laser diode produces a first laser line from the upper end of the shaft and second and third laser diodes produce second and third laser lines respectively from the bottom face and the front face of the head portion of the device. Each of the laser lines emanates from the device as a concentrated beam to impinge and be readily visible on a training surface remote of the device for independently tracking movement of the shaft, the bottom face and the front face of the head portion of the device.

Abstract: A programmable electronic golf swing timer worn on the wrist like a watch with an actuator button worn underneath a golf glove which will audibly alert the player at the optimal time the club should contact the ball. This electronic golf swing timer will assist the golfer in maintaining a uniform and consistent golf swing. The process of timing a golf swing with the watch-like assembly includes the steps of:a. setting a swing time for a particular golf club from back swing to contact with a golf ball by pressing a club button followed by a time button followed by a set button located on the watch-like assembly;b. pushing a club button located on the watch-like assembly representative of the golf club to be swung;c. observing an LED display on the watch-like assembly indicating the golf club chosen and the swing time for the golf club;d.

Abstract: The present invention relates to a novelty golf club having a rigid but flexible club head and a hand grip with a transparent shaft therebetween. Received within the club head is a digital sound chip in communication with a speaker for emitting any one of a plurality of humorous phrases. A plurality of light emitting diodes are received within the transparent shaft and are in communication with a randomizer circuit so that when the lights are illuminated they randomly pulse. The light emitting diodes and voice chip are activated with an impact switch received within the club head immediately adjacent its face. Accordingly, when a user swings the club in frustration and the club head impacts an object, the lights automatically illuminate in a random pattern and the sound chip emits any one of a plurality of humorous sound recordings.

Abstract: A device which indicates a change in the angular position of a golfer's hand during a backswing. The device includes a continuous rod having parallel segments detachably mounted to a wrist encircling support, and the rod is bent to form an arcuate portion extending of an angle with respect to the parallel segments. When the golfer's hand engages the arcuate portion, the commencement of a downstroke is indicated.

Abstract: A practice golf club aids golf players in improving their stroke by indicating whether or not their swing generates an adequate amount of club head speed. This is achieved by utilizing the centrifugal force generated by a golf swing to actuate a piston located at the head of the golf club. If sufficient club head speed is attained and the piston is displaced a certain amount, a lamp momentarily blinks and an audible "click" can be heard to notify the user that the swing was indeed adequate. The components of the club include a piston, holding ball bearings, a return spring and an electrical circuit which contains a lamp and a ball bearing which is contacted by the piston when the piston is displaced by centrifugal force. The piston produces a second "click" when it is returned and strikes an upper piston chamber wall.

Abstract: A golf swing improvement device that includes two adjustable wrist encircling members, a golf club gripping member capable of fitting on any golf club, and a stretchable, flexible linear portion having two end areas. One of the end areas is attached to one of the wrist encircling members and the other end area is attached to the other wrist encircling member. A central area of the linear portion is firmly held by the golf club gripping member so that the length of linear portion extending between each wrist encircling member and the golf club gripping member may be separately adjusted in length.

Abstract: A method and device for golf swing training involving an elongated flexible member having grip at its proximal end, and a symmetrical weight at its distal end.A cap covers and is attached to the exterior surface of the weight. The cap has structure on its outer surface for retarding the flow of air around the weight,whereby the means for retarding air flow creates resistance to swinging of the device, and the user experiences a feel comparable to swinging a golf club.

Abstract: In a 2-piece solid golf ball comprising a solid core and a cover, the golf ball has a weight of 41-44.5 grams, the cover is formed of a thermoplastic resin having a Shore D hardness of 50-68 degrees, and the solid core has a surface hardness of 65-85 degrees and a center hardness of 60-80 degrees as measured by a JIS-C scale hardness meter, with the surface hardness.gtoreq. the center hardness+5. Despite a light weight, the golf ball is improved in flying distance and feel when hit at a relatively low head speed of 35-40 m/sec. The golf ball is thus appropriate for players of the beginner to middle rank.

Abstract: A golf swing trainer, and more particularly a kinesthetic golf swing plane training device and a method for golfers to train and perfect their swinging of a golf club is provided. The golf swing training device includes a training light adapted to be attachable to a shaft of a golf club. The training light is directed to project a head beam of light and a grip beam of light. The head beam of light projects parallel to the shaft of the golf club, toward the head of the golf club and the grip beam of light projects parallel to the golf club shaft, toward the grip of the golf club. The golf swing training device also includes a swing platform that includes a ground positioned pair of parallel tracks. An optically reflective means for reflecting the head beam of light as projected by the training light, and for reflecting the grip beam of light as projected by the training light is provided on the swing platform. The swing platform is preferably adjustable to suit various club lengths and club types.

Abstract: An arm structure comprises a first arm and a second arm. The first arm is attached to a base and extends generally upwardly therefrom, while being pivotable about an axis perpendicular to its elongated axis. The second arm extends horizontally outwardly from the first arm. A height of a distal end of the second arm above the base is adjustable. The arm structure is configured such that when the second arm is struck by a swinging golf club, the second arm automatically returns generally to the position relative to the base which it had immediately prior to being struck.In one embodiment, a resilient sleeve extends outwardly from a distal end of the second leg. In another embodiment, opposing first and second sleeves are provided at a juncture of the first and second legs. The second sleeve has an elliptically shaped surface adjacent an elliptically shaped surface of the first sleeve.

Abstract: A golf swing trainer includes a substantially transparent tubular body having ends for mounting on a free end of a handle of golf club, transverse to the handle. Two chambers within the body are respectively defined by opposed co-axial transparent inner cylinders. A circumferential guide track at an interior surface of the body between opposed ends of the cylinder provides a path for a metal ball. During swinging of a golf club, the ball moves between the chambers and the track, providing an audible indication of movement between the track and the two cylinders, alerting a golfer to alter the golf swing.

Abstract: A golf ball has a multiplicity of dimples formed in its surface. It is assumed that the ball has a phantom sphere and spherical surface when the ball surface is free of dimples. A tangent angle .theta. is 5.degree..ltoreq..theta..ltoreq.20.degree. wherein .theta. is defined between a tangent at an arbitrary point on an edge of an individual dimple to the phantom spherical surface and a tangent at that point to the actual ball surface. A percent dimple volume Vr is 0.8%.ltoreq.Vr.ltoreq.1.1% wherein Vr is the sum of the volumes of the entire dimples divided by the volume of the phantom sphere. This dimple design prevents lowering of spin susceptibility by repetitive hits without detracting from the dimple effect of increasing flight distance.

Abstract: A golf ball including a core, and a gamma irradiated, ionomeric, dimpled cover having a Shore D hardness of 55 or less as measured on a non-dimpled portion of the cover, the dimples maintaining their shape when the cover is subjected to heat treatment at 160.degree.-180.degree. F. for at least one hour. In making the golf ball, the dimpled cover is subjected to gamma irradiation in a dosage sufficient to increase the vicat softening point in degrees Fahrenheit of the cover by at least 2.5%.