Abstract: A wood type metal golf club head having a hollow metal head and the cavity within filled with a thermoplastic material produced from a thermoplastic polymer, filler and chemical blowing agent in a manner so that the material in the cavity has a dense outer skin adjacent the surfaces of the cavity and a cellular central area and the finished product reduces the undesirable metallic sound made during hitting.

Abstract: There is presented a golf ball having a core and a cover, the ball weighing 41-44.5 grams, and having a diameter of about 1.68 inches. The core is provided with a specific gravity of 1.01-1.09. The cover is provided with a specific gravity of 0.90-0.98 and a Shore D hardness of 40-65. The ball provides increased range when hit with slow to moderate club head velocity.

Abstract: A golf ball having a plurality of dimples therein, each of the dimples including a major dimple portion comprising a first recess formed in the surface of the ball, the major dimple portion having a span from side to side, a side wall and a bottom wall, and a minor dimple portion comprising a second recess formed in the bottom wall of the major dimple portion, the minor dimple portion having a span from side to side, parallel to the major dimple portion span, and smaller than the major dimple portion span, a side wall and a bottom wall, the major and minor dimple portions being of similar configuration, with the minor dimple portion being substantially centered in the major dimple portion and interrupting the major dimple portion bottom wall.

Abstract: A wood-type metal golf club head having a hollow metal head and the cavity within filled with a thermoplastic material produced from a thermoplastic polymer, filler and chemical blowing agent in a manner so that the material in the cavity has a dense outer skin adjacent the surfaces of the cavity and a cellular central area and the finished product reduces the undesirable metallic sound made during hitting.

Abstract: An improved golf ball including a novel cover composition, including a blend of a high stiffness ionomer having a melt index of 0.5-5.0 g/min., flexural modulus of 60,000-120,000 psi and shore hardness of 70 or greater and a very low modulus methacrylic acid ionomer having a melt index of 0.5 to 10.0 g/min., flexural modulus of 2,000-8,000 psi or less and Shore D hardness of 20-50. The resulting golf ball shows improved resilience and playability over known golf balls.

Abstract: A golf ball comprising:a center portion includingan elastomeric envelope normally of substantially spherical configuration, of Shore A durometer hardness of 40-50, and of a wall thickness of 0.085-0.095 inch, anda paste filling fully occupying said envelope, said paste filling having a viscosity of at least 100,000 centipoise.a thread wound portion includingan elastomeric thread wound upon said envelope, said thread having an elongation of 1,238% (.+-.150%), a tensile strength of 3,056 (.+-.500) p.s.i., and a cross-sectional rectangular configuration of a size of 0.0625 (.+-.0.002).times.0.012-0.018 inch,a cover portion of a thermoplastic material havinga density of 1.00-1.04 g/cm.sup.3, a flexural modulus of 5,000-10,000 p.s.i. and a Shore D Durometer hardness of 42-52, and a plurality of dimples therein, said dimples occupying 70-80% of the surface area of said ball, and said dimples having a total volume of 415-445 mm.sup.3,said ball havinga diameter of 1.680-1.688 inches, a weight of 44.5-45.

Abstract: A composition useful to produce a golf ball cover of a blend of ethylene-methyl acrylate and an ionomer resin and a compatabilizer. The composition produces a cover material having hardness and feel comparable to Balata, but having improved resilience, durability and cut resistance over Balata.

Abstract: A golf ball with a low spin rate is made by covering the center with a layer of uncured rubber, curing the rubber layer to make a rubber shell about the core, and then winding elastic threads about the cured rubber shell to form a golf ball core. A golf ball cover is then applied to the core to form a golf ball.The center is either a solid rubber sphere or a liquid-filled hollow envelope. The thickness of the rubber shell is between 0.16 cm and 0.64 cm.

Abstract: The golf ball product is made from two polybutadienes, each having a Mooney viscosity of below about 50 and a cis-1,4 content of greater than about 40%. One polybutadiene is nickel- or cobalt-catalyzed, while the other is lanthanide-catalyzed. The golf ball product includes a mix of the two polybutadienes, a metal salt of an unsaturated carboxylic acid and a free radical initiator.

Abstract: There is disclosed a one-piece short distance golf ball which is formed by foam molding a thermoplastic polymer and a filler. The resulting golf ball has a dense outer skin and a cellular core structure. The golf ball is approximately half the weight of and plays approximately half as far as a conventional golf ball, but its performance characteristics are otherwise comparable to a conventional golf ball. In addition a bramble surface pattern is provided on the ball to reduce the effects of wind on the ball's flight.

Abstract: A one-piece short distance golf ball has a dense outer skin and a cellular core structure. The golf ball is the same size as a conventional ball (approximately 1.68 inches in diameter), is approximately half the weight of a conventional ball (15-35 grams), and plays approximately half as far as a conventional ball. The short distance golf ball is a lively ball with a rebound between 50% and 80%. The golf ball comprises a foam-molded thermoplastic polymer (approximately 100 parts) and a filler (approximately 0.5 to 15 parts). The thermoplastic polymer is Surlyn, and the filler material is preferably glass bubbles having a density between 0.12 and 0.18 grams per cubic centimeter. In addition the golf ball may have a brambled surface which helps the ball resist the effects of cross winds.