Patent ID: 6887166

Claim:
A method of manufacturing a golf ball, comprising the steps of: (a) providing a solid ball core; (b) providing a first hemispheric cup which cup has two identical first semi-conical engagement edges symmetrically outwardly projecting at two sides thereof and two identical first semi-conical connection edges inwardly projecting between said two first semi-conical engagement edges, wherein said two first semi-conical engagement edges are symmetrically and continuously extended between said two first semi-conical connection edges so as to form a continuous first joint edge for said first hemispheric cup; (c) providing a second hemispheric cup which has two identical second semi-conical engagement edges symmetrically outwardly projecting at two sides thereof and two identical second semi-conical connection edges inwardly projecting between said second first semi-conical engagement edge, wherein said two second semi-conical engagement edges are symmetrically and continuously extended between said two second semi-conical connection edges so as to form a continuous second joint edge for said second hemispheric cup, wherein a cone height of each of said first and second semi-conical engagement edges is equal to a cone height of each of said first and second semi-conical connection edges, and a size and shape of said first hemispheric cup and the second hemispheric cup are identical and symmetrical; (d) placing said solid ball core between said first hemispheric cup and said second hemispheric cup; and (e) integrally attaching said first hemispheric cup and said second hemispheric cup together by fittingly engaging said two second semi-conical engagement edges with said two first semi-conical connection edges respectively while fittingly engaging said two second semi-conical connection edges with said two first semi-conical engagement edges respectively so as to form a ball cover covering said solid ball core.