公开(公告)号：US4739963A

公开(公告)日：1988-04-26

申请号：US926138

申请日：1986-11-03

申请人： Robert K. Parmacek ,  John Joyce ,  Peter Stryker

发明人： Robert K. Parmacek ,  John Joyce ,  Peter Stryker

IPC分类号： A23G9/22 ,  F25C1/22 ,  B29C39/40

CPC分类号： F25C1/22 ,  A23G9/221

摘要： A structural ice mold of the large, single use type, preferably made of FDA approved low density polyethylene plastic, is rotationally molded into a shape forming a hollow cavity on the inside thereof which defines the ice sculpture or figurine to be formed therein. In the improvement of the invention a narrow peripheral ridge or U-shape rib is extended vertically around the outside of the ice mold, preferably at the parting line of the permanent parent mold. The one-piece mold may be opened at the U-shape rib by cutting across the side of the rib at positions away from the surface of the ice figure formed in the mold, rather than by cutting perpendicularly through the mold surface and potentially into the ice figure therein. An additional improvement in ice molds resides in a hollow core formed in the base of the mold which allows for expansion of water in the mold when it changes phase into ice, thereby reducing stress and cracking in the finished ice form.

摘要翻译： 大型一次性使用型结构冰模，优选由FDA认可的低密度聚乙烯塑料制成，在其内部被旋转地模制成形成中空腔的形状，其形成在其中形成的冰雕或雕像。 在本发明的改进中，窄的周边脊或U形肋沿着冰模的外部垂直地延伸，优选地在永久母模的分型线处延伸。 一体式模具可以在U型肋处通过在模具中形成的冰图的表面上远离肋的侧面切割而不是垂直切割模具表面并且潜在地进入 冰图。 冰模具的另外的改进在于形成在模具的底部中的中空芯，其允许当模具中的水变成冰时膨胀水，从而减少成品冰形式的应力和开裂。