YOUTH ORIENTED SPORTSBALL

摘要

PROBLEM TO BE SOLVED: To provide a sportsball reducing the risk of injury to younger children.;SOLUTION: The problem is solved by selecting volume/weight, surface area/weight, and cover layer/carcass thickness ratios. For example, a soccer ball may have a volume/weight ratio of 15.5 or greater, a surface/weight ratio of 4.4 or greater, and a circumference of from about 59 cm to 66 cm.;COPYRIGHT: (C)2010,JPO&INPIT