Patent ID: 6063319
Filing Date: 2000-05-16
Classification: A63B,B29C,B29L

Abstract:
A method of injection molding a golf ball having a core and at least one layer of material covering said core, comprising the steps of:a) placing said core centrally within a molding cavity having a center and defining an outer spherical surface and x, y, and z axes, as positioned in the cartesian coordinate system;b) injecting molten material through said spherical surface and into said cavity at a plurality of spaced gates located on said surface;c) injecting said molten material simultaneously through said gates and along radial, non-aligned directions toward said center of the cavity and under forces having force components directed along said x, y, and z axes, in both the positive and negative directions relative to said x, y, and z axes;d) balancing the force components so that the force components along each of the x, y, and z axes in the positive direction equal the force components along the x, y, and z axes in the negative direction, respectively;e) continuing said injection of said molten material until enough of said molten material has been injected to cover said core; andf) solidifying said molten material to define said one layer of material covering said core.