Golf ball

Details Golf ball Golf ball

1998-07-06

1999-12-07

Marlo, George J.

Games using tangible projectile

Golf

Ball

273DIG1, 273DIG6, 273DIG10, 273DIG22, A63B 3706

Patent

active

059974168

ABSTRACT:
A golf ball includes a hollow core formed of a material having a specific gravity of 1.05-1.25 and having a concentric spherical inner cavity, a cover formed on the outer surface of the hollow core, and a resin layer applied onto the inner surface of the hollow core and having a thickness of 1-3 mm. The resin layer is preferably formed of a material having an Izod impact resistance of 50 J/m or greater. The hollow core preferably has a wall thickness of 7-11 mm. The Shore D hardness of the resin layer is preferably greater than that of the hollow core by at least 10. The golf ball does not suffer breakage of the hollow core due to an impact acting on the golf ball upon being hit, and has proper degrees of hardness and resilience in order to increase travel distance.

REFERENCES:
patent: 728311 (1903-05-01), Singer
patent: 740403 (1903-10-01), Day

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