Abstract: Golf ball 1 has numerous dimples 4 on its surface. The dimple 4 comprises an inclined face 6, a circular flat face 7, an annular groove 8 and a round flat face 9. Surface area s1 is calculated by summing up the surface area of the inclined face 6, the surface area of the circular flat face 7, the surface area of the annular groove 8 and the surface area of the round flat face 9. The ratio (S1/S2) between a summation S1 of surface areas s1 of all the dimples, and a summation S2 of the areas s2 of the regions cut away by the dimples on the phantom spherical face is equal to or greater than 1.02. Total value (Cb+Cc) of the amount of compressive deformation Cb of the golf ball 1 and the amount of compressive deformation Cc of the core is equal to or greater than 7.0 mm.

Abstract: A golf ball having an outside surface with a plurality of dimples formed thereon. The dimples on the ball have a cross-sectional profiles formed by a catenary curve. Shape constants in the catenary curve are used to vary the ball flight performance according to ball spin characteristics and player swing speed.

Abstract: A golf ball 1 includes an A dimple having a diameter of 4.35 mm, a B dimple having a diameter of 3.9 mm, a C dimple having a diameter of 3.4 mm, and a D dimple having a diameter of 3.2 mm. All the dimples have circular plane shapes. A ratio PN of a number Na of the circular dimples having the diameters of 3.9 mm to 4.8 mm to a total number N of the dimples is 75% or more. A volume Va of the circular dimples having the diameters of 3.9 mm to 4.8 mm is 200 mm3 to 300 mm3. A ratio PV of the volume Va to a total volume V of all the dimples is 70% to 95%. A surface area occupation ratio Y of all the dimples is 75% or more.

Abstract: A golf ball comprising a core and a cover layer, wherein the cover layer provides one or more deep dimples that extend through the cover layer to and/or into a layer or component underneath is disclosed. The cover may be a single layer or it may include multiple layers. If the cover is a multi-layer cover, the dimples extend to or into at least the first inner cover layer, and may extend to and/or into two or more inner cover layers. If the cover is a single layer, the dimples extend to and/or into the core. The cover layer(s) may be formed from any material suitable for use as a cover, including, but not limited to, ionomers, non-ionomers and blends of ionomers and non-ionomers. The dimples may be spherical or non-spherical, and the portion of the dimple that extends to or into the next inner layer may be the same or different shape as the outer portion of the dimple. Optionally, a moisture barrier layer may be present between the core and/or the cover layer(s).

Abstract: Golf ball 1 has a core 2 and a cover 3. The core 2 is composed of a center 4 and a mid layer 5. Numerous dimples 6 are formed on the surface of the cover 3. Base polymer of this cover 3 includes a thermoplastic polyurethane elastomer as a principal component. Shore D hardness of this cover 3 is 30 or greater and 55 or less. Surface area occupation ratio Y of these dimples 6 is equal to or greater than 0.80. Total volume V of these dimples 6 is 300 mm3 or greater and 700 mm3or less. Average volume Va that is a value derived through dividing this total volume V by total number of the dimples is equal to or greater than 1.30 mm3. Average curvature R that is a mean value of the curvature r of the cross-sectional shape of these dimples 6 is equal to or greater than 16 mm. Average occupation ratio y that is a value derived through dividing the surface area occupation ratio Y by total number N of the dimples is equal to or greater than 0.0022.

Abstract: A multi-piece solid golf ball comprises a solid core and a cover of two inner and outer layers surrounding the core. The outer cover layer has a surface formed with a plurality of dimples is characterized in that a product of the Shore D hardnesses of the inner cover layer multiplied by the Shore D hardnesses of the outer cover layer and a proportion VR (%) of the total of the volumes of dimple spaces each defined below a plane circumscribed by the dimple edge to the overall volume of a phantom sphere given on the assumption that the golf ball surface is free of dimples satisfy any one of the following combinations (1) to (5): (1) 1,500 to less than 2,000 VR: 0.8 .to 1.1% (2) 2,000 to less than 2,500 VR: 0.75 to 1.05% (3) 2,500 to less than 3,000 VR: 0.7 to 1% (4) 3,000 to less than 3,500 VR: 0.65 to 0.95% (5) 3,500 to 4,000 VR: 0.6 to 0.9%.

Abstract: The present invention relates to processes and apparatuses for forming multi-layer golf balls, and more particularly to processes and equipment for forming multi-layer golf balls having one or more deep dimples that extend through the outer cover layer and into one or more matching depressions in the layers or components thereunder.

Abstract: A golf ball comprises a large number of dimples (4) on a surface thereof. The dimple (4) includes a first curved surface (7) provided from a position (P2) placed downward by 85% of a depth to a position (P1) placed downward by 100% of the depth in a direction of the depth from an edge (E) and a second curved surface (8) provided from a position (P5) placed downward by 20% of the depth to a position (P3) placed downward by 50% of the depth in the direction of the depth from the edge (E). A percentage, to a total number of the dimples, of a number of the dimples in which a ratio (R1/R2) of a radius of curvature (R1) of the first curved surface (7) to a radius of curvature (R2) of the second curved surface (8) is 5 to 55 is 20% or more. A third curved surface (9) is present between the first curved surface (7) and the second curved surface (8). A fourth curved surface (10) is present between the second curved surface (8) and the edge (E).

Abstract: A golf ball with superior aerodynamic properties is characterized by a progressive depth of dimples on the surface of the ball. The ball surface is divided into a plurality of equal geometries such as triangles, each of which is filled with a plurality of non-overlapping dimples. Groups of dimples are provided in each geometry, the dimples of each group having different depths, respectively. A first group of dimples is arranged about the perimeter of the geometry and a second group of dimples is arranged within the first group. A third group of dimples having a third depth may be provided within the second group, with the depth of the third group being less than the depth of the second group which is less than the depth of the first group. Alternatively, the depth of the third group is greater than the depth of the second group which is greater than the depth of the first group. Similarly, the first and third groups may have the same depth but different from the second group.

Abstract: A multi-piece solid golf ball comprising a solid core and an enclosing cover of inner and outer layers is characterized in that the solid core has a deflection of at least 1.1 mm under an applied load of 30 kg, the cover inner layer has a Shore D hardness of 45-61, the cover outer layer has a Shore D hardness of 35-55, and the sum of dimple trajectory volumes each obtained by multiplying a dimple volume by the square root of a dimple diameter is 530-750.

Abstract: A golf ball (1) comprises a large number of dimples (4) and a land portion (5) on a surface thereof. The dimple (4) is concaved from the surface of a phantom sphere shown in a two-dotted chain line. The dimple (4) includes an edge (E). The dimple (4) includes an outer region (6) on an outside of the edge (E). A mean value of a width (W) of the outer region (6) is 0.03 mm to 0.20 mm. A mean value of a ratio (W/d) of the width (W) of the outer region (6) to a maximum dimension (d) of the dimple (4) is 0.015 to 0.040. A mean value of an angle (a) formed by the outer region (6) and a maximum dimension line (T) is 1.0 degree to 15.0 degrees. The separation of air flowing into the dimple (4) can be suppressed by the outer region (6).

Abstract: A spherical ball and a method of making the spherical ball wherein the ball has a plurality of elongated dimples substantially covering the outer surface of the ball without any dimple overlap. The elongated dimples are of at least two types including a first plurality of dimples having a minor axis and a major axis which together form the long axis of the first plurality of dimples. The minor axis being less than the major axis. A second plurality of dimples has a minor axis equal to that of the first plurality of dimples and a major axis less than the major axis of the first plurality of dimples but greater than the minor axis.

Abstract: A golf ball with superior aerodynamic properties is characterized by a progressive depth of dimples on the surface of the ball. The ball surface is divided into a plurality of equal geometries such as triangles, each of which is filled with a plurality of non-overlapping dimples. Groups of dimples are provided in each geometry, the dimples of each group having different depths, respectively. A first group of dimples is arranged about the perimeter of the geometry and a second group of dimples is arranged within the first group. A third group of dimples having a third depth may be provided within the second group, with the depth of the third group being less than the depth of the second group which is less than the depth of the first group. Alternatively, the depth of the third group is greater than the depth of the second group which is greater than the depth of the first group. Similarly, the first and third groups may have the same depth but different from the second group.

Abstract: A golf ball comprising an elastic solid core, an intermediate layer and a resin cover of urethane elastomer having a plurality of dimples on its surface, wherein the dimples include 330-400 circular dimples having a diameter of 3.7-5.0 mm, have a total volume of 330-380 mm3, and are substantially uniformly distributed such that there is no or only one great circle which does not intersect with the dimples exhibit uniform flight performance.

Abstract: A simplified method of matching a golfer to a golf club and a golf ball by measuring the golfer's club head speed and comparing that measured value to recorded sets of data which correlates a few key variables that can accurately match the golfer with the most suitable golf club and golf ball designed to achieve optimum driving performance.

Abstract: The present invention is directed to a golf ball comprising a soft core and a hard cover to produce a resulting golf ball having a reduced spin rate. In this regard, a core is provided and metal particles, or other heavy weight filler materials, are included in the cover compositions. This results in a golf ball exhibiting enhanced perimeter weighting. Preferably, the particles are included in a relatively thick inner cover layer (or mantle) of a solid, three-piece multi-layered golf ball. In another preferred version, one or more patterns of weighting material are incorporated in the ball, and most preferably along the outer periphery of the ball so that the pattern is visible along the ball's exterior. The size and weight of the core is reduced in order to produce an overall golf ball which meets, or is less than, the 1.62 ounce maximum weight limitation specified by the United States Golf Association.

Abstract: An autograph golf ball is a large diameter simulated golf ball with broad shallow dimples creating a smooth surface for writing on the exterior. A writable paint coating covers the exterior surface.

Abstract: Golf ball 1 has a large number of dimples 2 on its surface. A surface area occupation ratio Y of these dimples 2 is equal to or greater than 75%. A ratio R1 of the diameter of the maximum dimple dmax to the diameter D of this golf ball 1 is 11.0% or greater and 18.0% or less. Total number N of the dimples is equal to or less than 320. A ratio R2 of number of dimples 2 having a diameter d accounting for 11.0% or greater and 18.0% or less of the diameter D, occupied in total number N is equal to or greater than 20%. A mean occupation ratio y which is a value calculated by dividing the surface area occupation ratio Y by total number N is equal to or greater than 0.22%. A summation X of the contour length x of the dimples 2 and the surface area occupation ratio Y satisfy the relationship represented by the following formula (I).

Abstract: A new dimple configuration for the surface of a golf ball is characterized by a portion extending above the surface of the ball. Each dimple includes an annular portion having an inner configuration and an outer configuration, and an inner portion having a configuration corresponding with the annular portion inner configuration. Preferably, the annular portion is elevated relative to the ball surface. When a struck ball travels through the air, the elevated portions trip air at the ball surface to improve the flight characteristics of the ball.

Abstract: A resin composition comprising, in admixture, (A) a specific thermoplastic resin component, (B) at least one wax component selected from among (b-1) a fatty acid having 20-80 carbon atoms and/or a derivative thereof and (b-2) an oxidized natural wax and/or derivative having a neutralization value of 60-190 mg KOH/g, and optionally, (C) a basic inorganic metal compound capable of neutralizing acid groups in the thermoplastic resin component (A) and/or the wax component (B) is improved in flow, moldability and heat resistance and thus suitable to form a layer of a golf ball which exhibits improved rebound and distance properties.

Abstract: A nets configuration for the dimples on the surface of a golf ball is characterized by at least a portion of the bottom surface of the dimple extending below a radius of curvature which defines the concavity of the dimple. Thus, the dimples have a non-symmetric depth profile. The dimples are preferably circular and the non-symmetrical portions are maintained within one half of the dimple.

Abstract: A golf ball comprising a core and a cover layer, wherein the cover layer provides one or more deep dimples that extend through the cover layer to and/or into a layer or component underneath is disclosed. The cover may be a single layer or it may include multiple layers. If the cover is a multi-layer cover, the dimples extend to or into at least the first inner cover layer, and may extend to and/or into two or more inner cover layers. If the cover is a single layer, the dimples extend to and/or into the core. The cover layer(s) may be formed from any material suitable for use as a cover, including, but not limited to, ionomers, non-ionomers and blends of ionomers and non-ionomers. The dimples may be spherical or non-spherical, and the portion of the dimple that extends to or into the next inner layer may be the same or different shape as the outer portion of the dimple. Optionally, a moisture barrier layer may be present between the core and/or the cover layer(s).

Abstract: A golf ball comprising a core and a cover layer, wherein the cover layer provides one or more deep dimples having two or more different radii is disclosed. The deep dimples(s) extend(s) through the cover layer to and/or into a layer or component underneath. The cover may be a single layer or it may include multiple layers. The deep dual dimples may be spherical or non-spherical, and the portion of the dimple that extends to or into the next inner layer may be the same or different shape as the outer portion of the dimple.

Abstract: Disclosed is a golf ball including: a plurality of dimples arranged overall on the spherical surface of the golf ball by assuming the spherical surface of the golf ball as a spherical octahedron and using, as dimple arrangement units, eight spherical triangles constituting the spherical octahedron, on each of which a specific number of the dimples are arranged. In this golf ball, at least the four dimples are arranged on each of three sides of the spherical triangle; there is no great circle with which none of the dimples intersects; and the total number of the dimples is in a range of 380 to 450.

Abstract: A golf ball has a large number of dimples (A to D) on a surface thereof. A surface area occupation ratio Y of the dimples is 0.80 to 0.90. A total volume V of the dimples is 300 mm3 to 700 mm3. A mean volume Va to be a value obtained by dividing the total volume V by a total number N of the dimples is 1.30 mm3 or more. A mean curvature R to be a mean value of a curvature r in the sectional shape of the dimple is 16 mm or more. A mean occupation ratio y to be a value obtained by dividing the surface area occupation ratio Y by the total number N of the dimples is 0.0022 or more.

Abstract: An apparatus and related techniques for making a golf ball having one or more deep dimples are disclosed. The apparatus is a molding assembly for making a golf ball which includes a mold body that defines a molding cavity. The molding cavity is adapted to accommodate and preferably retain a golf ball core during a molding operation of one or more layers about the core. The molding assembly includes at least one material flow inlet, at least one material flow channel extending between and providing fluid communication with the material flow inlet and the molding cavity. The molding cavity includes at least one outwardly extending protrusion that forms a deep dimple that extends through the cover of the golf ball to and/or into the underlying component of the golf ball upon molding. The outwardly extending protrusion has a height greater than or equal to the thickness of the cover.

Abstract: An apparatus and related techniques for making a golf ball with deep dimples are disclosed. The golf ball comprises a core and a cover layer, wherein the cover layer provides deep dimples that extend through the cover layer and/or into a layer or component underneath are disclosed. At least one percent (1%), preferably about five percent (5%), of the dimples of the ball comprise deep dimples. The cover may be a single layer or include multiple layers. If the cover is a multi-layer cover, the dimples extend to or into at least the first inner cover layer, and may extend to or into two or more inner cover layers. If the cover is a single layer, the dimples extend to or into the core. The dimples may be spherical or nonspherical, and the portion of the dimple that extends to or into the next inner layer may be the same or different shape as the outer portion of the dimple.

Abstract: A golf ball having an outside surface with a plurality of dimples formed thereon. The dimples on the ball have a cross-sectional profiles formed by a catenary curve. Shape constants in the catenary curve are used to vary the ball flight performance according to ball spin characteristics and player swing speed.

Abstract: In a multi-piece solid golf ball comprising an elastic solid core, an intermediate layer of ionomer resin, and a cover of urethane elastomer having a plurality of dimples on its surface, those dimples disposed in one or more rows adjacent to the equator have a greater depth and/or volume than the remaining dimples in other areas. The variation of flight performance of the ball with impact points is minimized.

Abstract: A golf ball has four kinds of dimples A to D. The A and B dimples are teardrop-shaped to take specific shapes. The C and D dimples are circular. A ratio of non-circular dimples is 77% to 92%. A ratio of the circular dimples is 8% to 23%. A ratio of the total number of the dimples taking specific shapes to all the non-circular dimples is 80% or more. When the number of dimples of such a kind as to have a minimum length of a contour line is represented by Ns and the number of dimples of such a kind as to have a maximum length of a contour line is represented by Nb in all kinds of dimples taking specific shapes, a ratio of (Ns/Nb) is 20/80 to 80/20. A dimple pattern in a hemisphere is rotation symmetrical at an angle of 120 degrees or 90 degrees. The golf ball comprises a specific land portion Ls.

Abstract: The present invention provides a three-piece solid golf ball, of which flight distance is improved by accomplishing high launch angle and low spin amount in initial flight performance, while maintaining soft and good shot feel at the time of hitting at low head speed. The present invention relates to a three-piece solid golf ball comprising a center, intermediate layer and cover, of which a deformation amount, hardness and hardness distribution of the center, a hardness and thickness of the intermediate layer, a hardness and thickness of the cover, and a hardness distribution from the center to the cover are adjusted to specified ranges.

Abstract: A golf ball comprising an elastic solid core, an intermediate layer and a resin cover of urethane elastomer having a plurality of dimples on its surface, wherein the dimples include 330-400 circular dimples having a diameter of 3.7-5.0 mm, have a total volume of 330-380 mm3, and are substantially uniformly distributed such that there is no or only one great circle which does not intersect with the dimples exhibit uniform flight performance.

Abstract: A golf ball having a plurality of dimples formed in its surface is characterized in that the sum of dimple trajectory volumes each obtained by multiplying a dimple volume by the square root of a dimple diameter is 580-750, and the ball has a diameter of 42.67-42.97 mm.

Abstract: A golf ball includes a core, and a cover made from a cover material containing an ionomer resin and also barium sulfate and titanium dioxide added in a total amount ranging from 10 to 25 parts by mass on the basis of 100 parts by mass of the ionomer resin. A flexural amount of the core, measured by applying a load of 980 N thereto, is in a range of 4.0 to 5.5 mm. A ratio of a melt-flow rate to a specific gravity (melt-flow rate/specific gravity) of the cover material is in a range of 1.6 or more. A Shore D hardness of the cover is in a range of 55 to 65.

Abstract: A combination dimple pattern on the surface of a golf ball is characterized by both non-circular and non-circular compound dimples. The compound dimples include a first non-circular dimple portion and a second non-circular dimple portion arranged in a bottom surface of the first portion, with the second dimple portion having a depth greater than the depth of the first circular portion. The combination of compound and circular dimples on the surface of the ball improves the aerodynamic efficiency of the ball for more control of lift and drag of a spinning golf ball during flight.

Abstract: A spherical ball and a method of making the spherical ball wherein the ball has a plurality of elongated dimples substantially covering the outer surface of the ball without any dimple overlap. The elongated dimples are defined by an oblong depression having a longitudinal axis and a length measured along the axis greater than a width measured perpendicular to the axis. The depression has a V-shaped configuration when viewed in a section taken through the longitudinal axis.

Abstract: In a dimpled golf ball, the parameters of dimples are optimized to improve the aerodynamic performance of the ball and thus increase its flight distance. The dimples have a planar shape which is circular, and are of at least three types of mutually differing diameter. At least one of the types of dimples has a cross-sectional shape differing from that of the other types. One of the dimple types may have a cross-sectional shape defined by the union of at least two concave portions of differing slope.

Abstract: In a multi-piece solid golf ball comprising a rubbery elastic solid core and a resin cover including at least an inner layer, an intermediate layer and an outer layer, the solid core undergoes a deflection of 1.6-6.0 mm under an applied load of 294 N (30 kgf), the cover inner layer has a Shore D hardness of 55-70, the cover intermediate layer has a Shore D hardness of 8-50 and a gage of 0.1-1.2 mm, and the cover outer layer has a Shore D hardness of 40-55. The ball prevents any undesired increase of spin upon driver shots without detracting from rebound, has good flight performance, and receives enough spin to facilitate control on short iron shots.

Abstract: In a non-limiting exemplary embodiment of the present invention, a golf ball has a surface comprising a plurality of dimples arranged in an amorphous pattern. In an additional embodiment of the invention, a golf ball has a surface comprising a plurality of spaced dimples, wherein the dimples each comprise a non-circular shape and are spaced by land portions having substantially uniform widths. In an additional embodiment of the present invention, a golf ball has a surface formed with a plurality of non-circular, multi-sided shaped dimples and interposed lands having substantially consistent widths between adjacent dimples. In yet another alternative embodiment of the present invention, an exemplary method of making a golf ball having a dimpled surface is provided. The process comprises generating an amorphous pattern of non-circular shaped dimples and then transferring the amorphous pattern to the surface of the golf ball.

Abstract: In a multi-piece solid golf ball comprising a solid core and a cover of two inner and outer layers enclosing the solid core, the solid core has a deflection of at least 1.

Abstract: A solid golf ball has a soft solid core and a hard cover. The cover is formed of a thermoplastic resin-base cover stock, with 11-45 parts by weight of a particulate inorganic filler added thereto per 100 parts by weight of the cover stock. The solid core undergoes a deflection of 3.0 to 5.5 mm under a load of 100 kg. The ball is drastically improved in durability against cracking.

Abstract: In a golf ball having on its surface a multiplicity of dimples, the dimples include a majority of large dimples with a diameter of 3.0 to 4.2 mm and account for at least 65% of the entire ball surface area. The large dimples have a depth of 0.1-0.35 mm, an edge angle of up to 30°, and a radius of curvature at the edge of 1-50 mm. Not only excellent flight performance is achieved, but the ball can be smoothly released from a mold at the end of molding.

Abstract: Using a mold comprising typically two split mold segments which are mated in a separable manner to define a spherical mold cavity therein, a golf ball having a multiplicity of dimples in its surface is molded by feeding a molding material into the mold cavity. The mold is split along a line off a horizontal great circle of the golf ball into two split mold segments having different areas of contact with the ball. The golf ball as molded is always caught and left in the larger mold segment and thus can be easily removed from the mold by a routine operation.

Abstract: A golf ball having a surface thereon with a plurality of dimples on the surface is disclosed herein. The contour of each of the dimples is continuous from a first edge of each of the dimples to a second opposing edge of each of the dimples. The contour at the first edge may be equal to the contour of a sphere of the golf ball. The contour of each of the dimples may be convex from the first edge to a first inflection point and from the second edge to a second inflection point, and the contour may be concave between the first inflection point and the second inflection point. The contour may be defined by the following equation: P(t)=&Sgr;BiJn,i(t)0≦t≦1, wherein Jn,i(t)=(ni)ti(1−t)n−i, n is equal to at least five, and i=n+1. The radius of each point from a bottom center to the first edge may be different from any other point from the bottom center to the first edge. The radius may be greatest at the bottom center.

Abstract: An ionomer resin component containing (a) a ternary ionomer resin and optionally (b) a binary ionomer resin, optionally blended with (c) a non-neutralized olefin-unsaturated carboxylic acid random copolymer, is blended with (d) a metal soap of a fatty acid neutralized with a Ca, Mg or Zn cation in a weight ratio from 95:5 to 80:20. A golf ball cover composition based on this mixture has a melt index of 1-10 dg/sec. The cover composition is drastically improved in moldability, resilience and paint coating adhesion. A golf ball having a cover made of the composition is improved in feel and flight performance.

Abstract: A spherical ball and a method of making the spherical ball wherein the ball has a plurality of elongated dimples substantially covering the outer surface of the ball without any dimple overlap. The elongated dimples are of at least two types including a first plurality of dimples having a minor axis and a major axis which together form the long axis of the first plurality of dimples. The minor axis being less than the major axis. A second plurality of dimples has a minor axis equal to that of the first plurality of dimples and a major axis less than the major axis of the first plurality of dimples but greater than the minor axis.

Abstract: A vortex generating golf ball dimple for producing a turbulent boundary layer on the surface of a golf ball during its flight is a composite of a plurality of overlapping smaller concave sections. Preferably, the dimple is a plurality of peripheral spherical sections overlapping a central spherical section to form a ridge-like polygon. The polygon, the top edge of which lies below the outer edges of the dimple, acts as a vortex generating structure within the dimple concavity for producing the turbulent boundary layer. Each pair of opposite or near opposite sides of the polygon has a common cross-sectional shape or structure. The aerodynamic characteristics of the cross-sectional structure are such that the turbulent boundary layer is formed about the dimple at even relatively low velocities without any unnecessary interference being produced at high velocities.

Abstract: A golf ball that has a core and a cover surrounding the core. The cover has an exterior surface which defines a plurality of dimples dimensioned and arranged such that the golf ball has a coefficient of drag below about 0.26 at a Reynolds number of about 150,000 and a spin rate of about 3000 rpm. The cover and the core are made from materials selected such that the golf ball has a weight of below about 1.60 oz.

Abstract: A golf ball that has a core and a cover surrounding the core. The cover has an exterior surface which defines a plurality of dimples dimensioned and arranged such that the golf ball has a coefficient of drag below about 0.26 at a Reynolds number of about 150,000 and a spin rate of about 3000 rpm. The cover and the core are made from materials selected such that the golf ball has a weight of below about 1.60 oz.

Abstract: The present invention is directed to a golf ball comprising a soft core and a hard cover to produce a resulting golf ball having a reduced spin rate. In this regard, a core is provided and metal particles, or other heavy weight filler materials, are included in the cover compositions. This results in a golf ball exhibiting enhanced perimeter weighting. Preferably, the particles are included in a relatively thick inner cover layer (or mantle) of a solid, three-piece multi-layered golf ball. In another preferred version, one or more patterns of weighting material are incorporated in the ball, and most preferably along the outer periphery of the ball so that the pattern is visible along the ball's exterior. The size and weight of the core is reduced in order to produce an overall golf ball which meets, or is less than, the 1.62 ounce maximum weight limitation specified by the United States Golf Association.