Patent ID: 6936208

Claim:
A method for casting a cover on a golf ball precursor product, the method comprising: dispensing a liquid thermosetting polyurethane prepolymer in a first mold half, the first mold half comprising a body having a wall and a perimeter perpendicular to the wall, the body having an internal hemispherical cavity, the perimeter having a plurality of recesses, each of the plurality of recesses in flow communication with the internal hemispherical cavity, each of the plurality of recesses separated from an adjacent recess by a land area of the perimeter; placing a golf ball precursor product into the liquid thermosetting polyurethane prepolymer dispensed in the first mold half; dispensing the liquid thermosetting polyurethane prepolymer in a second mold half, the second mold half comprising a body having a wall and a perimeter perpendicular to the wall, the body having an internal hemispherical cavity, the perimeter having a plurality of recesses, each of the plurality of recesses in flow communication with the internal hemispherical cavity, each of the plurality of recesses separated from an adjacent recess by a land area of the perimeter and each of the plurality of recesses having a first end and a second end opposite the first end along a circumference of the internal hemispherical cavity, wherein each of the plurality of recesses of the first mold half oppose land area of the perimeter of the second mold half and each of the plurality of recesses of the second mold half oppose the land area of the perimeter of the first mold half when the first mold half is mated to the second mold half, and each of the plurality of recesses of the first mold half having a first end that overlaps a first end of a recess of the plurality of recesses of the second mold half, and each of the plurality of recesses of the second mold half having a second end that overlaps a second end of a recess of the plurality of recesses of the first mold half when the first mold half is mated to the second mold half; mating the first mold half having the liquid thermosetting polyurethane prepolymer and the golf ball precursor therein with the second mold half having the liquid thermosetting polyurethane prepolymer therein; forming within the mated first and second mold halves a cover on the golf ball precursor product with a continuous tab.