Abstract: A golf ball has dimples arranged as constrained by a plurality of geometric shapes, and the geometric shapes are located so the sphere of the ball is symmetric about the origin. There is a regular heptagon at each of the poles of the sphere, and bases of irregular pentagons are contiguous with the polar heptagon and surround the ball. Heptagons are then contiguous with the pentagons, followed by more pentagons which extend around the equator. The pentagons at the equator are alternately inverted with respect to one another, and the two hemispheres are alike. A line bisecting the short sides of the pentagons is a geodesic, and one of these is the equator. The equator is the only great circle not intersected by a plurality of dimples.

Abstract: There is disclosed a one-piece short distance golf ball which is formed by foam molding a thermoplastic polymer and a filler. The resulting golf ball has a dense outer skin and a cellular core structure. The golf ball is approximately half the weight of and plays approximately half as far as a conventional golf ball, but its performance characteristics are otherwise comparable to a conventional golf ball. In addition a bramble surface pattern is provided on the ball to reduce the effects of wind on the ball's flight.

Abstract: A one-piece short distance golf ball has a dense outer skin and a cellular core structure. The golf ball is the same size as a conventional ball (approximately 1.68 inches in diameter), is approximately half the weight of a conventional ball (15-35 grams), and plays approximately half as far as a conventional ball. The short distance golf ball is a lively ball with a rebound between 50% and 80%. The golf ball comprises a foam-molded thermoplastic polymer (approximately 100 parts) and a filler (approximately 0.5 to 15 parts). The thermoplastic polymer is Surlyn, and the filler material is preferably glass bubbles having a density between 0.12 and 0.18 grams per cubic centimeter. In addition the golf ball may have a brambled surface which helps the ball resist the effects of cross winds.