发明名称 TWO-SHOT INJECTION MOLDED FLOOR TILE WITH VENT HOLE
摘要 A modular plastic floor tile has a body of a first polymer compound and at least one upper feature overmolded onto an upper surface of the body from a second polymer compound which is injected from a gate adjacent the lower surface of the body. At least one through-hole communicates the gate to the upper feature. At least one vent hole, spaced from the through-hole, communicates the upper feature to the lower surface of the body. The vent hole allows any gas in the polymer flow path to be displaced from the upper feature, thereby preventing or minimizing defects that can affect adhesion and appearance.
申请公布号 US2013047528(A1) 申请公布日期 2013.02.28
申请号 US201113217556 申请日期 2011.08.25
申请人 MASANEK, JR. FREDERICK W.;MALEWIG THOMAS;IVERSON DAVID S.;THOM ALLAN R.;MACNEIL IP LLC 发明人 MASANEK, JR. FREDERICK W.;MALEWIG THOMAS;IVERSON DAVID S.;THOM ALLAN R.
分类号 E04F15/10;B28B7/22;B29C45/16;E04C2/24 主分类号 E04F15/10
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