US Patent:
20130310197, Nov 21, 2013
Inventors:
Yutaka Kabeshita - Portland OR, US
Kerby LaVar Maxwell - Portland OR, US
Arthur Molinari - Portland OR, US
Bradley C. Tutmark - Aloha OR, US
Takahisa Ono - Fujisawa City, JP
Seisuke Tomita - Tokyo, JP
Assignee:
NIKE, INC. - Beaverton OR
International Classification:
A63B 37/00
Abstract:
A golf ball is provided capable of having various characteristics based on having an aggregated layer core. The golf ball includes an inner core, an outer shell enclosing the inner core, and an intermediate core enclosing the inner core. The intermediate core includes sublayers thermoplastically fused together to form an aggregated intermediate core layer having overall characteristics formed as a combination of the sublayer characteristics. A method of forming a golf ball core having an aggregated layer core can include forming a first and second stack of nested cups, thermoplastically bonding each of the stacks to each other to form first and second aggregated cups, arranging the aggregated cups around a golf ball inner core, and bonding the aggregated cups to each other. In some configurations, the sublayers can include ultrathin sublayers less than 20 microns thick, and in some configurations, the sublayers can include injection molded sublayers.