Patent Publication Number: US-8979675-B2

Title: Golf ball core having radial appendages

Description:
BACKGROUND 
     The present disclosure relates generally to a golf ball having a golf ball core having spherically symmetric radial appendages extending from an inner core. Further, the present disclosure relates to a golf ball having improved feel, control and sound. 
     The game of golf is an increasingly popular sport at both the amateur and professional levels. A wide range of technologies related to the manufacture and design of golf balls are known in the art. Such technologies have resulted in golf balls with a variety of play characteristics. For example, some golf balls have a better flight performance than other golf balls, in terms of initial velocity, spin, and total distance. 
     Similarly, a golfer may use different golf balls having different play characteristics depending on the golfer&#39;s preferences. For example, different dimple patterns may affect the aerodynamic properties of the golf ball during flight, or a difference in the hardness may affect the rate of backspin. With regard to hardness in particular, a golfer may choose to use a golf ball having a cover layer and/or a core that is harder or softer. A harder golf ball will generally achieve greater distances but less spin, and so will be better for drives but more difficult to control on shorter shots. On the other hand, a softer golf ball will generally experience more spin and therefore be easier to control, but will lack distance. Some golf balls with a good flight performance do not have a good feel when hit with a golf club. Some golf balls with good performance and feel lack durability. 
     Therefore, there exists a need in the art for a durable golf ball having spin control as well as good feel. 
     SUMMARY 
     A golf ball having a golf ball core, one or more intermediate layers and a cover layer is disclosed. The golf ball core may include an inner core having radial appendages. The radial appendages may protrude from the inner core in a spherically symmetrical pattern. The radial appendages may be formed from the same material as the inner core. The one or more intermediate layers may surround the inner core and fill the voids between the radial appendages. The cover layer surrounds the one or more intermediate layers and radial appendages. 
     In one aspect, the disclosure provides an inner core having radial appendages. The inner core may be made of a polymeric material. The polymeric material of the inner core may be a thermoplastic polymer. The radial appendages may be formed from the same material as the inner core. 
     In another aspect, the inner core and radial appendages may be made as one piece. The inner core and radial appendages may be formed by injection molding techniques. The inner core and radial appendages may be formed in one mold. 
     In a further aspect, the golf ball core may be surrounded by one or more intermediate layers. The one or more intermediate layers may surround the inner core and the radial appendages. The one or more intermediate layers may surround the inner core but may partially surround the radial appendages. The radial appendages may extend from the inner core through the one or more intermediate layers. The radial appendages may extend beyond the outer surface of the one or more intermediate layers. 
     In one aspect, the golf ball of the disclosure further comprises a cover layer surrounding the one or more intermediate layers and radial appendages. The radial appendages may extend beyond the outer surface of the one or more intermediate layers. The radial appendages may abut, or may be in direct contact with, the cover layer. In some embodiments, the radial appendages may extend into the cover layer. In other embodiments, the ends of the radial appendages may be embedded in the cover layer. 
     In another aspect, the disclosure provides a golf ball comprising one or more intermediate layers. The one or more intermediate layers may be made of a polymeric material. The polymeric material of the one or more intermediate layers may be a thermoplastic polymer. The one or more intermediate layers may be formed from the same thermoplastic polymer that forms the golf ball core. The one or more intermediate layers may be formed from a different thermoplastic material that forms the golf ball core. The one or more intermediate layers may have the same hardness as the golf ball core. The one or more intermediate layers may have a different hardness than the golf ball core. The one or more intermediate layers may have a hardness that is less than the hardness of the golf ball core. 
     Other systems, methods, features and advantages of the disclosure will be, or will become, apparent to one of ordinary skill in the art upon examination of the following figures and detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description and this summary, be within the scope of the disclosure, and be protected by the following claims. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Embodiments of the disclosure can be better understood with reference to the following drawings and description. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the disclosure. Moreover, in the figures, like reference numerals designate corresponding parts throughout the different views. 
         FIG. 1  shows an embodiment of a golf ball core with radial appendages; 
         FIG. 2  shows an embodiment of a golf ball core with radial appendages situated about x, y, and z axes; 
         FIG. 3  shows an embodiment of a golf ball core with radial appendages that is have been split along a vertical plane, or the y, z plane, to show spherical symmetry; 
         FIG. 4  is an illustration of an embodiment of a golf ball core with radial appendages that is have been split along a horizontal plane, or the x, z plane, to show spherical symmetry; 
         FIG. 5  is an illustration of an embodiment of a golf ball core with radial appendages that is have been split along a diagonal plane to show spherical symmetry; and 
         FIG. 6  is an illustration of an embodiment of a golf ball core with radial appendages and an intermediate layer. 
         FIG. 7  shows an embodiment of a golf ball core with radial appendages and two intermediate layers. 
         FIG. 8  shows an embodiment of a finished golf ball having a golf ball core with radial appendages, an intermediate layer, and a cover layer where a portion of the cover layer have been removed to reveal the golf ball core and intermediate layer. 
         FIG. 9  shows a cross-section of an embodiment of a finished golf ball. 
         FIG. 10  shows the impact a golf club has on an embodiment of a finished golf ball. 
         FIG. 11  shows the stressed put on an embodiment of a finished golf ball during use. 
         FIG. 12  shows an embodiment of a golf ball core with radial appendages that are coils or springs. 
         FIG. 13  shows an embodiment of a golf ball core with springs or coils as radial appendages and an intermediate layer. 
         FIG. 14  shows an embodiment of a golf ball core with springs or coils as radial appendages and two intermediate layers. 
         FIG. 15  shows an embodiment of a finished golf ball having a golf ball core with coils or springs as radial appendages, an intermediate layer, and a cover layer where a portion of the cover layer have been removed to reveal the golf ball core and intermediate layer. 
         FIG. 16  shows the impact a golf club has on an embodiment of a finished golf ball having a golf ball core with springs or coils as radial appendages. 
     
    
    
     DETAILED DESCRIPTION 
     Generally, this disclosure relates to a golf ball that includes a golf ball core having radial appendages extending from an inner core in a spherically symmetric pattern. In addition, the golf ball of the disclosure may have one or more intermediate layers and a cover layer. 
     The golf ball of the disclosure may be made by any suitable process. The process of making the golf ball may be selected based on a variety of factors. For example, the process of making the golf ball may be selected based on the type of materials used and/or the number of layers included. Exemplary processes are discussed herein with respect to the individual layers of the exemplary embodiment. 
     The golf ball core of the disclosure may include an inner core having radial appendages. The inner core may be any symmetric shape. The inner core may have a spherical shape. The radial appendages may extend from the inner core in a spherically symmetrical pattern. The number of radial appendages extending from the inner core may be selected based on a variety of factors. For example, the numbers of radial appendages may be selected based on the desired play characteristics of the finished golf ball. Any number of radial appendages may extend from the inner core so long as the radial appendages are arranged in a spherically symmetric pattern. At a minimum, the golf ball core may have six radial appendages. 
     The inner core of the disclosure may be made from any known golf ball material. In some embodiments, the material may be any material suitable for forming an inner core with radial appendages. In some embodiments, the inner core may be formed from any material that is suitable for use in an injection molding process. In some embodiments, the inner core may be formed from any material that is suitable for use in a reaction injection molding (RIM) process. In some embodiments, the material is a polymeric material. In some embodiments, the polymeric material may be a thermoplastic polymer or resin. In some embodiments, the polymeric material may be an ionomer. The type of material selected for the inner core may be selected based on a variety of factors. For example, the material used to form the inner core may be selected based on the desired play characteristics of the finished golf ball. 
     Embodiments of the disclosure may include provisions for controlling the transfer of force from the impact of a golf club from the cover layer to the inner core. Some of the provisions may enhance the transfer of force from the cover layer to the inner core. Other provisions may limit the transfer of force from the cover layer to the inner core. Some embodiments of the golf ball core can be shaped or designed to achieve the force transfer. The golf ball cores of the disclosure may have radial appendages to assist with the transfer of force from the cover layer to the inner core. The radial appendages of the golf ball can be arranges in a spherically symmetric pattern. 
     Embodiments of the radial appendages include radial appendages that are also resilient members of the golf ball core. Resilience can be defined as the ability to return to original form or position after being bent, compressed or stretched. Stated another way, resilience is the ability of a material to absorb energy when it is deformed elastically, and release that energy upon unloading. In some embodiments, the radial appendages are resilient to the force of an impact from a golf club. 
     In some embodiments, the radial appendages are made of the same material as the inner core. Further, the radial appendages and inner core may one piece. The golf ball core having an inner core and radial appendages may be formed by any suitable method. The method chosen to form the golf ball core may be based on the material used to form the golf ball core. The inner core may be formed by injection molding. The radial appendages and inner core may formed by injection molding. The radial appendages and inner core may be formed in a single mold. 
     The radial appendages may be formed into any size, shape or design. In some embodiments, the radial appendages may be columns extending outward from the inner core. Further, the radial appendages may be tapered columns where the base of the column that meets the inner core may be wider than the top of the column that abuts a cover layer. In addition, the top of the radial appendages may be flat or it may be convex or domed to match the curvature of a cover layer. 
     The shape or design of the radial appendages may be selected based on a variety of factors. The size and shape of the radial appendages may be selected to provide a finished golf ball with desired play characteristics. For example, the length of each radial appendage may vary based on the size the inner core. Further, wider radial appendages may be formed to provide the finished golf ball with a firmer feel. In some embodiments, thinner radial appendages may be formed to provide the finished golf ball with a softer feel. In addition, the golf ball core may contain a combination of radial appendages having different shapes and sizes. 
       FIG. 1  shows a golf ball core  100  having an inner core  110  and one or more radial appendage. In the embodiment shown in  FIG. 1 , golf ball  100  includes first radial appendage  120 , second radial appendage  122 , third radial appendage  124 , fourth radial appendage  126 , fifth radial appendage  128 , sixth radial appendage  130 , seventh radial appendage  132 , eight radial appendage  134 , and ninth radial appendage  136 . Further, the radial appendages and inner core may be made from the same material. The radial appendages and inner core may be one piece. 
     As shown in  FIG. 1 , the radial appendages are arranged in a spherically symmetric pattern extending from inner core  110 . Each radial appendage that extends from inner core  110  may have a corresponding appendage that extends from inner core  110  on the direct opposite side of inner core  110 . For example, radial appendage  120  extends in one direction from inner core  110  on one side of inner core  110  and radial appendage  128  extends in the opposite direction from inner core  110  on the direct opposite side of inner core  110 . In addition, the radial appendages may be spaced an equal distance from each other on inner core  110 . 
     In three dimensions, an object may be defined by its x, y, and z coordinates. Similar to  FIG. 1 ,  FIG. 2  shows a golf ball core  200  having an inner core  210  and one or more radial appendage. In the embodiment shown in  FIG. 2 , golf ball  200  includes first radial appendage  220 , second radial appendage  222 , third radial appendage  224 , fourth radial appendage  226 , fifth radial appendage  228 , sixth radial appendage  230 , seventh radial appendage  232 , eight radial appendage  234 , ninth radial appendage  236 , tenth radial appendage  238 , and eleventh radial appendage  240 . In addition,  FIG. 2  shows the x, y, and z coordinates for golf ball core  200 . 
     In the embodiment shown in  FIG. 2 , golf ball core  200  generally is spherically symmetric. Each radial appendage that extends from inner core  210  has a similar appendage that extends from inner core  210  on the opposite side of inner core  210 . For example, second radial appendage  222  extends in one direction from inner core  210  on one side of the inner core and radial appendage sixth  230  extends in the opposite direction from inner core  210  on the direct opposite side of the inner core. 
     Similarly, other radial appendages may have corresponding appendages that are disposed on the opposite side of inner core  210 . Locating appendages on opposite sides of inner core  210  helps to maintain spherical symmetry. 
     In addition, the radial appendages may be spaced an equal distance from each other on inner core  210 . More specifically, the radial appendages may be spaced an equal distance to adjacent radial appendages as well as non-adjacent radial appendages. For example, in the embodiment shown in  FIG. 2 , eleventh radial appendage  240  may be spaced an equal first distance from adjacent fourth radial appendage  226 , sixth radial appendage  230 , ninth radial appendages  236 , and tenth radial appendages  238 . In addition, eleventh radial appendage  240  may be spaced an equal second distance from first radial appendage  220  and fifth radial appendage  228 . Regulating and controlling the spacing between adjacent and non-adjacent appendages may also help maintain spherical symmetry. 
     More specifically,  FIG. 3  shows a golf ball core split open along a vertical plane.  FIG. 3  shows that the golf ball core generally is spherically symmetric. Each half of the split golf ball core contains the same number of radial appendages, which results in spherical symmetry. Further, the halves of the golf ball core show that equal number of radial appendages may be arranged in a spherically symmetric pattern. The golf ball core halves may be considered mirror images of each other. 
     Similarly,  FIG. 4  shows a golf ball core split open along a horizontal plane.  FIG. 4  shows the golf ball core generally is spherically symmetric. Each half of the split golf ball core contains the same number of radial appendages. Further, the halves of the golf ball core show that equal number of radial appendages may be arranged in a spherically symmetric pattern. Once again, the shows that the golf ball core halves are mirror images of each other. 
     Further,  FIG. 5  shows a golf ball core split open along a diagonal plane.  FIG. 5  shows that golf ball core  500  generally is spherically symmetric. Each half of the split golf ball core contains the same number of radial appendages. Further, the halves of the golf ball core show that equal number of radial appendages may be arranged in a spherically symmetric pattern. As can be seen, the golf ball core halves are mirror images of each other. 
       FIGS. 3 ,  4  and  5  illustrate the spherical symmetry of the golf ball core. For purposes of this disclosure, a golf ball core or a golf ball system is said to be spherically symmetric where the system is invariant under spatial rotation about a designated point, for example, the center of the golf ball. Further, in some embodiments, a golf ball core may be spherically symmetric where the golf ball core has regular angular increments between the radial appendages in any plane that includes the center of the golf ball core. In other embodiments, the golf ball core may be spherically symmetric where the golf ball core is divided into two halves along any arbitrary plane that includes the center, and the resultant two halves are substantially similar mirror-image pairs. In further embodiments, the golf ball core may be spherically symmetric when the golf ball core is mass balanced. For example, the golf ball core may be mass balanced when the golf ball core is either statically or dynamically balanced when treated as a rotating body. 
     Some embodiments of the golf ball may include one or more intermediate layers. The one or more intermediate layers may be radially spaced from, and surround the inner core. In addition, the one or more intermediate layers may fill in the spaces between the radial appendages. In some cases, one or more intermediate layers may completely encapsulate the inner core and radial appendages. In other embodiments, the radial appendages may extend beyond the outer surface of the one or more intermediate layers. On other words, the one or more intermediate layers may not completely encapsulate the radial appendages. 
     In some embodiments, the one or more intermediate layers may be made from any material suitable for golf balls. In some embodiments, the material may be any material suitable for forming an intermediate layer around a golf ball core. In some embodiments, the one or more intermediate layers may be formed from any material that is suitable for use in an injection molding process. In some embodiments, the one or more intermediate layers may be formed from any material that is suitable for use in a reaction injection molding (RIM) process. In some embodiments, the one or more intermediate layer may be made of any material suitable for compression molding. In some embodiments, the material may be a polymeric material. In some embodiments, the polymeric material includes a thermoplastic polymer or resin. In some embodiments, the polymeric material may be an ionomer. 
     In embodiments where two or more intermediate layers are formed, the materials forming the two or more layers may be the same as or different from each other. Further, the thickness of the two or more layers may be the same as or different from each other. In embodiments of the intermediate layers, where two or more layers are present an adhesive may be present between each individual layer. However, in other embodiments, the use of an adhesive may be omitted. 
     The thickness of the one or more intermediate layers may be selected based on upon a variety of factors. For example, the thickness of each intermediate layer may be selected to produce certain desired play characteristics of the finished golf ball. Further, the thickness of each layer maybe related to the size of the inner core of the golf ball core. As stated above, the intermediate layers may not completely encapsulate at least the ends of each radial appendage. In some embodiments, the radial appendages may extend beyond the outer surface of the one or more intermediate layers. Therefore, in some embodiments, the thickness of the one or more intermediate layers may be limited to the length the radial appendages extend from the inner core. 
     In some embodiments, the hardness of the one or more intermediate layers may be similar to the hardness of the golf ball core. In other embodiments, the hardness of the one or more intermediate layers may be different than the hardness of the golf ball core. In those embodiments where the hardness of the one or more intermediate layers is different that the hardness of the golf ball core, the hardness of the one or more intermediate layers may be less than the hardness of the golf ball core. However, in other embodiments, the hardness of the one or more intermediate layers may be greater than the hardness of the golf ball core. In embodiments having two or more intermediate layers, the hardness of the two or more layers may be the same as or different from each other. The hardness of each of the two or more intermediate layers may be similar or different from the hardness of the golf ball core. 
     As shown in  FIG. 6 , the golf ball core may be surrounded by an intermediate layer. In  FIG. 6 , intermediate layer  620  surrounds inner core  610  by filling in the space between first radial appendage  630 , second radial appendage  632 , third radial appendage  634 , fourth radial appendage  636 , fifth radial appendage  638 , sixth radial appendage  640 , seventh radial appendage  642 , eight radial appendage  644 , and ninth radial appendage  646 . In addition, the golf ball core may contain radial appendages not shown in  FIG. 6 . For example, second radial appendage  632  may have a corresponding radial appendage extending from inner core  610  on the opposite of the inner core. Similarly, fourth radial appendage  636 , sixth radial appendage  640 , eight radial appendage  644 , and ninth radial appendage  646  have corresponding radial appendages, which are not show in  FIG. 6 , on the opposite side of inner  610 . 
     Further, intermediate layer  620  may not completely encapsulate the radial appendages. In some embodiments, the radial appendages may also be flush with the outer surface of the intermediate layer without being encapsulated by the intermediate layer. In other embodiments, the radial appendages may extend beyond the outer surface of intermediate layer  620 . For example, radial appendage  638  may extend beyond the surface of intermediate layer  620 . In embodiments where the radial appendages extend beyond the outer surface of the intermediate layer, the portion of the radial appendages that extends beyond the outer surface of the intermediate layer may be from about ⅕ to about 1/50 of the length of the radial appendage. 
       FIG. 7  also shows an inner core  710  surrounded by first intermediate layer  720  and second intermediate layer  730 . First intermediate layer  720  surrounds inner core  710  by filling in the space between first radial appendage  740 , second radial appendage  742 , third radial appendage  744 , fourth radial appendage  746 , fifth radial appendage  748 , sixth radial appendage  750 , seventh radial appendage  752 , eight radial appendage  754 , and ninth radial appendage  756  up to some radial altitude. Further, second intermediate layer  730  surrounds inner core  710  as well as first intermediate layer  720 . In other words, second intermediate layer  730  may be disposed radially outward of first intermediate layer  720 . Again, second intermediate layer  730  fills in the spaces between first radial appendage  740 , second radial appendage  742 , third radial appendage  744 , fourth radial appendage  746 , fifth radial appendage  748 , sixth radial appendage  750 , seventh radial appendage  752 , eight radial appendage  754 , and ninth radial appendage  756  up to some radial altitude. 
     Further, in the embodiment shown in  FIG. 7 , first intermediate layer  720  and second intermediate layer  730  may not completely encapsulate the radial appendages. In some embodiments, the radial appendages may also be flush with the outer surface of the intermediate layer without being encapsulated by the intermediate layer. In other embodiments, as shown in  FIG. 7 , the radial appendages, for example third radial appendage  744  and fifth radial appendage  748 , extend beyond the outer surface of second intermediate layer  730 . In some embodiments, at least the ends of each radial appendage extend beyond the outer surface of the one or more intermediate layers. Again, the portion of the radial appendages that extends beyond the outer surface of the intermediate layer may be from about ⅕ to about 1/50 of the length of the radial appendage. 
     Some embodiments of the golf ball may further include a cover layer. The cover layer may be made by any suitable process for making a golf ball cover layer. For example, in some embodiments, the cover layer may be made by a compression molding process. The process of making the cover layer may be selected based on a variety of factors. For example, the process of making the cover layer may be selected based on the type of material used to make the cover layer. The cover layer may be made using any material suitable for making a golf ball cover layer. 
     Embodiments of the golf ball of the disclosure may include an additional layer between the cover layer and the radial appendages and outer surface of the one or more intermediate layers. This additional layer may be made of any suitable golf ball material. The additional layer may assist with adhesion between the cover layer and the radial appendages and outer surface of the one or more intermediate layers. In some embodiments, the material selected for the additional layer may have a reduced effect on the transfer of force from the cover layer to the radial appendages, and ultimately to the inner core. In other embodiments, the material selected for the additional layer may enhance the transfer of force from the cover layer to the radial appendages, and ultimately to the inner core. Still further, in some embodiments, the material selected for the additional layer may have no effect on the transfer of force from the cover layer to the radial appendages, and ultimately to the inner core. 
       FIG. 8 , shows an embodiment of finished golf ball  800  having golf ball core  810 , intermediate layer  820 , and cover layer  830 . The cover layer  830  has been cut out to reveal the interior of finished golf ball  800 . Golf ball core  810  having first radial appendage  840 , second radial appendage  842 , third radial appendage  844 , fourth radial appendage  846 , fifth radial appendage  848  and sixth radial appendage  850  can be seen in  FIG. 8 . Intermediate layer  820  fills in the spaces between the radial appendages. However, the radial appendages extend beyond the outer surface of intermediate layer  820 . For example, the cut out reveals that at least third radial appendage  844  and fifth radial appendage  848  abut, or are in contact with, the cover layer. In this embodiment, third radial appendage  844  and fifth radial appendage  848  extend into the cover layer. 
       FIG. 9  shows a cross-section of an embodiment of a finished golf ball  900 . The cross-section reveals golf ball core  910  having first radial appendage  940 , second radial appendage  942 , third radial appendage  944  and fourth radial appendage  946 , as well as intermediate layer  920  and cover layer  930 . The cross-section of finished golf ball  900  reveals a spherically symmetric golf ball core. In addition, first radial appendage  940 , second radial appendage  942 , third radial appendage  944  and fourth radial appendage  946  all abut, or are in contact with, cover layer  930 . In embodiments where the radial appendages abut the cover layer, the impact of the golf club striking the golf ball may be transferred through the cover layer to those radial appendages abutting the portion of the cover layer being struck by the golf club face, and then through the radial appendage to the inner core. 
       FIG. 10  shows finished golf ball  1000  being struck by golf club  1040 . Finished golf ball  1000  includes golf ball core  1010  having inner core  1060 , first radial appendage  1050 , second radial appendage  1052 , third radial appendage  1054 , fourth radial appendage  1056 , and fifth radial appendage  1058 , as well as intermediate layer  1020  and cover layer  1030 . At least second radial appendage  1052 , fourth radial appendage  1056  and fifth radial appendage  1058  of the golf ball core  1010  abut, or are in direct contact with, cover layer  1030 . 
     When golf club  1040  strikes finished golf ball  1000 , a portion of cover layer  1030  and the radial appendages in contact with that portion of cover layer  1030 , for example second radial appendage  1052 , may be compressed upon impact with the golf club. The impact of golf club  1040  may be transferred through the cover layer to the radial appendages in contact with that portion of the cover, for example second radial appendage  1052 . Further, the force of the impact may be transferred through second radial appendage  1052  into inner core  1060  of the golf ball core  1010 . 
     In addition to cover layer  1030  and golf ball core  1010 , intermediate layer  1020  of finished golf ball  1000  also may be compressed when struck by golf club  1040 . As discussed above, the one or more intermediate layers may have a hardness that is different from the hardness of the golf ball core. In some embodiments, intermediate layer  1020  may have a hardness that is less than the hardness of the golf ball core  1010 . The softer intermediate layer  1020  may provide for a golf ball with a better feel and control when struck with a golf club. 
     The finished golf ball of the disclosure having a golf ball core with radial appendages may provide for a finished golf ball that has a better feel, without loss of drive or long iron distance. In addition, the finished golf balls of the disclosure may provide for greater control or spin of the golf ball when struck with shorter irons. Further, the finished golf balls of the disclosure may provide for better sound characteristics when struck with a golf club. 
     In addition to the improved play characteristics described above, the golf balls of the disclosure also may exhibit improved construction and durability. Conventional golf balls may be made with a core, a cover layer and a mantle layer between the core and cover layer. Typically, the layers of the golf ball may be held together through some type of adhesion. The adhesion may be an interaction between the materials that form the layers. The adhesion may also be an adhesive coating between the layers. In either case, adhesion between golf ball components may sometimes be problematic. For example, if the layers of a golf ball become dissociated with each other, such as delamination with adjacent layers, buckling of the material, fracturing or cracking of the material, etc., the ball would “deaden”. Poor adhesion between the golf ball layers may result in layer dissociation. 
     The finished golf ball of the disclosure may exhibit improved durability. The finished golf ball of the disclosure may have a conventional method to adhere the intermediate layers to golf ball core. For example, the finished golf ball of the disclosure may include a chemical means for adhering adjoining layers. The chemical means may be an interaction between the materials of the golf ball core and the intermediate layers, or it may be an adhesion layer between the two components. 
     However, the finished golf ball of the disclosure may also have a mechanical means for the changing the durability of the finished golf ball. As shown the embodiment of  FIG. 11 , first radial appendage  1130 , second radial appendage  1132 , third radial appendage  1134 , fourth radial appendage  1136 , fifth radial appendage  1138 , sixth radial appendage  1140 , seventh radial appendage  1142 , eight radial appendage  1144 , and ninth radial appendage  1146  of finished golf ball  1100  extend from golf ball core  1110  through intermediate layer  1120 . By extending through the intermediate layer, the radial appendages also may hold the intermediate layer in place mechanically. Although radial appendages in the form of tapered columns are show in  FIG. 11 , radial appendages of any size or shape will have a similar effect on the intermediate layers. 
     When a force is applied to the golf ball, the radial appendages may provide a mechanical resistance to the one or more intermediate layers moving or shifting, thereby maintaining the durability of the finished golf ball. For example, when a golf ball is spinning at a high rate (shown by the arrows rotating around finished golf ball  1100 ), the force of the spin may apply a stress to the adhesion between the golf ball core and the intermediate layer. The radial appendages may provide a better resistance to such a stress. This improved resistance to adhesion stress may provide for a more durable golf ball. Therefore, the golf ball of this disclosure may exhibit improved durability without sacrificing driver performance or golf ball feel. 
     Embodiments of the finished golf ball may be both statically and dynamically balanced. Static balance can be defined as the ability to remain at rest in any position when placed on a level surface. Dynamic balance can be defined as the ability of the axis about which a rotating body is forced to rotate to remain parallel to a principal axis of inertia. In other words, dynamic balance occurs when the mass of the body (golf ball) is evenly distributed about its rotating center line. Embodiments of the golf ball may be tuned or modified to balance the golf ball both statically and dynamically. 
     While the radial appendages of the golf ball core may be the form of columns, as discussed in some of the embodiments above, in other embodiments of the golf ball, the radial appendages also may take the form of any suitable shape. In some embodiments, the radial appendages may be in the shape of springs or coils. 
     As stated above, the shape or size of the radial appendages in the shape of springs or coils may be selected based on a variety of factors. The size and shape of the radial appendages may be selected to provide a finished golf ball with desired play characteristics. In addition, the length of each radial appendage may vary based on the size the inner core. The size of each radial appendage may depend upon the type of appendage chosen (spring, coil or column) and the material used to form the radial appendages. In addition, the golf ball core may contain a combination of radial appendages having different shapes and sizes. 
     In addition, the springs or coils may have any suitable stiffness or spring constant. In some embodiments, the stiffness of the radial appendage may be low. In those embodiments where the radial appendage has a low stiffness, the finished golf ball may have a softer feel. In addition, the finished golf ball having low stiffness radial appendages also may exhibit better control when struck with short irons and wedges. In some embodiments, the stiffness of the radial appendage may be high. In those embodiments where the radial appendage has a high stiffness, the finished golf may have a firmer feel. The stiffness of each radial appendage may depend on the material used to form the radial appendage. Further, the stiffness of each radial appendage may depend on the size and shape of each radial appendage. The stiffness of the radial appendages may be selected based on the desired play characteristics of the finished golf ball. 
     As stated above, the inner core of the disclosure may be made from any suitable material for golf balls. For example, the inner core may be made of a material suitable for injection molding. Further, the inner core may be made of a polymeric material. The polymeric material of the inner core may be a thermoplastic polymer. 
     Radial appendages in the form of a springs or coil may be made of any suitable material for the selected shape or configuration. Further, the material selected may be any material suitable for injection molding. Radial appendages in the form of a spring or coil may be made of the same material as the inner core. The radial appendages may be made of a polymer. The polymer may be a thermoplastic polymer. 
       FIG. 12  shows an embodiment of a golf ball core  1200  having an inner core  1210  and first radial appendage  1220 , second radial appendage  1222 , third radial appendage  1224 , fourth radial appendage  1226 , fifth radial appendage  1228 , and sixth radial appendage  1230 . The radial appendages may be arranged in a spherically symmetric pattern extending from the inner core  1210 . As can be seen, the radial appendages of some embodiments may be arranged along the x, y, and z axes. 
     In the embodiment shown in  FIG. 12 , golf ball core  1200  shows that the golf ball core may be spherically symmetric. Each radial appendage that extends from inner core  1210  may have a similar appendage extended from inner core  1210  on the opposite side of inner core  1210 . For example, radial appendage  1230  extends in one direction from inner core  1210  on one side, and radial appendage  1224  extends in the opposite direction from inner core  1210  on the opposite side of the inner core. In addition, the radial appendages may be spaced an equal distance from each other on inner core  1210 . As discussed above, regulating and controlling the spacing between adjacent and non-adjacent appendages may also help maintain spherical symmetry. 
     Similarly to some embodiments disclosed above, and incorporated in its entirety here, the golf ball of the disclosure having a golf ball core with springs or coils as radial appendages may include one or more intermediate layers. In addition, the one or more intermediate layers may be made from any known golf ball material. In embodiments where two or more intermediate layers are formed, the materials forming the two or more layers may be the same as or different from each other. 
     In some embodiments, the hardness of the one or more intermediate layers may be the same as the hardness of the golf ball core. However, the hardness of the one or more intermediate layers may be different than the hardness of the golf ball core. When the hardness of the of the one or more intermediate layers is different from the hardness of the golf ball core, the hardness of the one or more intermediate layers may be less than the hardness of the golf ball core. In other embodiments, the hardness of the one or more intermediate layers may be greater than the hardness of the golf ball core. In embodiments having two or more intermediate layers, the hardness of the two or more layers may be the same as or different from each other. 
     Further, when struck with a golf club, the intermediate layers may compress differently that the radial appendages. In some embodiments, the intermediate layers may compress more easily than the radial appendages. In such embodiments, the golf ball may exhibit a softer feel and better spin control. In other embodiments, the intermediate layers may compress less easily than the radial appendages. In such embodiments, the golf ball may exhibit a firmer feel. 
     In the embodiment shown in  FIG. 13 , golf ball core  1500  may be surrounded by one or more intermediate layers. In  FIG. 13 , intermediate layer  1520  may radially surround inner core  1510  by filling in the space between first radial appendage  1530 , second radial appendage  1532 , third radial appendage  1534 , fourth radial appendage  1536 , and fifth radial appendage  1538 . In some cases, intermediate layer  1520  may encapsulate the radial appendages. In other embodiments, intermediate layer  1520  may not completely encapsulate the radial appendages. For example, radial appendage  1532  may extend beyond the outer surface of intermediate layer  1520 . 
       FIG. 14  also shows a golf ball core  1600  surrounded by first intermediate layer  1620  and second intermediate layer  1630 . First intermediate layer  1620  may radially surround inner core  1610  by filling in the space between first radial appendage  1640 , second radial appendage  1642 , third radial appendage  1644 , fourth radial appendage  1646 , and fifth radial appendage  1648 . Further, second intermediate layer  1630  may radially surround golf ball core  1610  as well as first intermediate layer  1620 . Again, second intermediate layer  1630  may fill in the spaces between first radial appendage  1640 , second radial appendage  1642 , third radial appendage  1644 , fourth radial appendage  1646 , and fifth radial appendage  1648 . In some cases, second intermediate layer  1630  may encapsulate the radial appendages. In other embodiments, first intermediate layer  1620  and second intermediate layer  1630  may not completely encapsulate the radial appendages. For example, radial appendage  1640  may extend beyond the outer surface of second intermediate layer  1630 . 
     As stated above, and incorporated in its entirety here, a cover layer may be made by any suitable process for making a golf ball cover layer. Further, as stated above and incorporated in its entirety here, embodiments of the golf ball of the disclosure may include an additional layer between the cover layer and the radial appendages and outer surface of the one or more intermediate layers. This additional layer may be made of any suitable golf ball material. 
       FIG. 15 , shows an embodiment of finished golf ball  1700  having inner core  1710 , intermediate layer  1720 , and cover layer  1740 . The cover layer  1740  has been cut out to reveal the interior of finished golf ball  1700 . Inner core  1710  includes first radial appendage  1730 , second radial appendage  1732 , and third radial appendage  1734 , as can be seen in  FIG. 15 . Intermediate layer  1720  may fill in the spaces between the radial appendages but may not completely encapsulate the radial appendages. For example, the cut out reveals that third radial appendage  1730  may abut, or may be in contact with, the cover layer. 
     In some embodiments, the radial appendages may abut the cover layer. The impact of the golf club striking the golf ball may be transferred through the cover layer to those radial appendages abutting the portion of the cover layer being struck by the golf club face, and then through the radial appendage to the inner core. In the embodiment shown in  FIG. 16 , finished golf ball  1800  may be struck by golf club  1850 . Finished golf ball  1800  includes golf ball core  1810  having first radial appendage  1840 , second radial appendage  1842 , and third radial appendage  1844  as well as intermediate layer  1820  and cover layer  1830 . At least third radial appendage  1844  of the golf ball core  1810  may abut, or may be in direct contact with, cover layer  1830 . When golf club  1850  strikes finished golf ball  1800 , cover layer  1830  and the radial appendages in contact with that portion of cover layer  1830 , for example third radial appendage  1844 , may be compressed upon impact with the golf club. The impact of golf club  1850  may be transferred through the radial appendages, for example third radial appendage  1844 , into inner core  1810 . 
     In addition to cover layer  1830  and inner core  1810 , intermediate layer  1820  of finished golf ball  1800  also may be compressed when struck by golf club  1850 . In some embodiments, intermediate layer  1820  may have a hardness that is less than the hardness of the golf ball core  1810 . The softer intermediate layer  1820  may provide for a golf ball with a better feel when struck with a golf club. 
     As discussed above, the finished golf ball of the disclosure having a golf ball core with radial appendages may provide for a finished golf ball that has a better feel, without loss of drive or long iron distance. In addition, the finished golf balls of the disclosure may provide for greater control or spin of the golf ball when struck with shorter irons. Further, the finished golf balls of the disclosure may provide for better sound characteristics when struck with a golf club. 
     In addition to the improved play characteristics described above, the golf balls of the disclosure also may exhibit improved construction and durability. The finished golf ball of the disclosure may have a mechanical means for the changing the durability of the finished golf ball. By extending through the intermediate layer, the radial appendages also may hold the intermediate layer in place mechanically. 
     When a force is applied to the golf ball, the radial appendages may provide a mechanical resistance to the one or more intermediate layers moving or shifting, thereby maintaining the durability of the finished golf ball. This improved resistance to adhesion stress may provide for a more durable golf ball. Therefore, the golf ball of this disclosure may exhibit improved durability without sacrificing driver performance or golf ball feel. 
     Embodiments of the finished golf ball may be both statically and dynamically balanced. Embodiments of the golf ball may be tuned or modified to balance the golf ball both statically and dynamically. 
     While various embodiments of the disclosure have been described, the description is intended to be exemplary, rather than limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible that are within the scope of the disclosure. Accordingly, the disclosure is not to be restricted except in light of the attached claims and their equivalents. Also, various modifications and changes may be made within the scope of the attached claims.