发明名称 Method for eliminating detrimental effects of flash on cups used for sport stacking
摘要 A method of making a cup that decreases the amount of flash on a bottom surface of the cup is provided. More specifically, a cup is provided that includes a thickened lip around an open surface. The lip also includes a recess for the receipt of excess material generated by the molding process. This excess material, or flashing, is detrimental to the use of cups in cup stacking competitions.
申请公布号 US7740789(B2) 申请公布日期 2010.06.22
申请号 US20060539794 申请日期 2006.10.09
申请人 SPEED STACKS, INC. 发明人 GOERS JOHN L.
分类号 B28B1/24 主分类号 B28B1/24
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