Abstract: A golf ball (20) in accordance with the principles of the present invention has a core (22) with a low compression, but has at least two additional layers (24, 26) that provide for increased durability and control. The core (22) is formed of a polybutadiene compound that produces a zero (or less) compression. The mantle (24) is molded around the core (22) using terpolymers, which are comprised of ethylene, acrylic acid and n-butyl acrylate, with 100% of the acrylic acid groups neutralized with metal ions. The mantle (24), when molded, yields a deflection of greater than 0.170 inches under an applied static load of 200 lb. This correlates to a PGA compression of between about ?20 and 15. The cover (26) is molded using conventional ionomers and “very low modulus” ionomers (V.L.M.I.), and has a hardness of between about 50 and 75 on a Shore D scale.

Abstract: The present invention provides a golf ball having a plurality of dimples arranged on its outer surface, selected from two sets of dimples, the first set having a single radius cross section and the second set having a dual radius cross section. The dimples are arranged on the surface of the ball according to the rhombicosadodecahedron.

Abstract: A golf ball (20) in accordance with the principles of the present invention has a core (22) with a low compression, but has at least two additional layers (24, 26) that provide for increased durability and control. The core (22) is formed of a polybutadiene compound that produces a zero (or less) compression. The mantle (24) is molded around the core (22) using terpolymers, which are comprised of ethylene, acrylic acid and n-butyl acrylate, with 100% of the acrylic acid groups neutralized with metal ions. The mantle (24), when molded, yields a deflection of greater than 0.170 inches under an applied static load of 200 lb. This correlates to a PGA compression of between about −20 and 15. The cover (26) is molded using conventional ionomers and “very low modulus” ionomers (V.L.M.I.), and has a hardness of between about 50 and 75 on a Shore D scale.

Abstract: Golf balls in accordance with the principles of the present invention are economical to produce with the known equipment, and provide spin control, durability, and feel while conforming to regulations. The core 10 provides spin control and a solid resilient structure for a mantle 11 to be molded. The mantle 11 provides high resilience. The cover is comprised of an inner cover 13 and an outer cover 14 to provide adequate resilience and performance while still being able to accept dimples.

Abstract: A urethane-covered three-piece golf ball with a liquid-filled center, having a combination of center weight, thread windings, dimple configuration and compression that allows it to travel great distances, and to match the classic feel of ‘Balata’ balls, said combination at the same time complying with USGA regulations.

Abstract: A two piece golf ball has a core compression in the range of 77 PGA to 87 PGA, a core diameter in the range of about 1.532 inches to 1.548 inches, a cover hardness in the range of 66 to 72 Shore D, and a dimple pattern based on the geometry of a truncated octahedron. A ball having such characteristics exhibits superior distance performance without compromising shot-making feel.

Abstract: A two piece golf ball has a core compression in the range of 67 PGA to 77 PGA, a core diameter in the range of about 1.535 inches to 1.545 inches, a cover hardness in the range of 65 to 71 Shore D, and a dimple pattern based on the geometry of a rhombicosadodecahedron. An uninterrupted equatorial great circle path, corresponding to a mold parting line, is provided in the design for forming a cover of the golf ball in two parts. A ball having such characteristics exhibits superior distance performance without compromising shot-making feel.

Abstract: A urethane-covered three-piece golf ball with a liquid-filled center, having a combination of center weight, thread windings, dimple configuration and compression that allows it to travel great distances, and to match the classic feel of ‘Balata’ balls, said combination at the same time complying with USGA regulations.

Abstract: A golf ball is formed from a core, a lattice, and a cover which surrounds the lattice and the core. The lattice is provided with openings which expose portions of the core.

Abstract: A two piece golf ball has a core compression in the range of 77 PGA to 87 PGA, a core diameter in the range of about 1.535 inches to 1.545 inches, a cover hardness in the range of 53 to 59 Shore D, and a dimple pattern based on the geometry of a rhombicosadodecahedron. An uninterrupted equatorial great circle path, corresponding to a mold parting line, is provided in the design for forming a cover of the golf ball in two parts. A ball having such characteristics exhibits superior distance performance without compromising shot-making feel.

Abstract: A golf ball having between 1,000 and 2,500 dimples and a plurality of secondary depressions between said dimples on the exterior surface thereof. The secondary depressions are of spherical cross section and may be uniformly or randomly placed on the surface of the ball. The secondary depressions are of a depth from 0.001" to 0.005" and a diameter from 0.01" to 0.05". The invention allows for decreased in-flight drag forces compared to a golf ball without the claimed secondary depressions.

Abstract: An arrangement for dimples on the surface of a golf ball is disclosed. The golf ball surface is subdivided by projecting a tetrakaidecahedron onto the surface thereof. Dimples are arranged according to the location of the hexagons and trapezoids which comprise the tetrakaidecahedron. The hexagons and trapezoids can also be divided into triangles by inclusion of diagonals therein. With the inclusion of diagonals, up to ten great circle paths can be defined and the dimples can be arranged so that they do not intersect any of the great circle paths.