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1. 发明授权

US4923081A Storage tanks with fabricated support ribs 失效
标题翻译：带制造支撑肋的储罐
公开(公告)号：US4923081A
公开(公告)日：1990-05-08
申请号：US147387
申请日：1988-01-25
申请人： A. Michael Weaver , Joseph R. Wiegand , Dewey C. Stickley
发明人： A. Michael Weaver , Joseph R. Wiegand , Dewey C. Stickley
IPC分类号： B65D90/02 , B29C53/58 , B29C70/16 , B29D22/00 , B29D24/00 , B29L24/00 , B65D8/08
CPC分类号： B29C53/585 , B29D22/003 , B29D24/008 , B65D90/029
摘要： Improved reinforced plastic tanks and novel mandrel processes for producing them are disclosed. One aspect of the invention is concerned with an external support rib and a method for producing it. According to the invention, the rib is fabricated on a hollow rib form secured to the exterior of a tank with resilient netting and thread. The structure comprises chopped fibers and a resin which does not require a source of external heat to cure. The tank with the rib form secured to it is rotated as the lay-up is applied. Netting and threads are supplied to the rib form and they wrap around the rib lay-up and hold it in place until it cures.Also disclosed is a method for producing a double wall tank incorporating the novel rib. According to this aspect of the invention, the ribs are cured until they are at least tacky. Then, thin flexible panels are wrapped around the outside of the ribs and held in place by a wrap. The panels have a width which is less than the distance between rib centers so that a portion of the top of each rib is exposed between adjacent panels. Two outer endcap forms are positioned at the ends of the tank and an outer tank wall is fabricated over the panels, the exposed rib tops and the outer endcap forms, to produce the external wall of a double wall tank.
摘要翻译：公开了改进的增强塑料罐和用于生产它们的新颖的芯棒方法。本发明的一个方面涉及外部支撑肋及其制造方法。根据本发明，肋被制成在固定到具有弹性网和线的罐的外部的中空肋形式上。该结构包括短切纤维和不需要外部热源固化的树脂。固定在其上的具有肋形状的罐随着铺设施加而旋转。网状和螺纹被提供到肋骨形式，并且它们围绕肋叠层并且将其保持在适当位置直到其固化。还公开了一种生产包含新型肋的双壁罐的方法。根据本发明的这个方面，肋被固化直到它们至少是粘性的。然后，薄的柔性板被缠绕在肋的外侧并通过包裹保持在适当位置。这些面板的宽度小于肋中心之间的距离，使得每个肋的顶部的一部分暴露在相邻面板之间。两个外端盖形式定位在罐的端部，并且在面板，暴露的肋顶和外端盖形式之上制造外箱壁，以产生双壁箱的外壁。

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