发明名称 Elliptical expansion plug for universal nozzle casting
摘要 An elliptical expansion plug for plugging elliptical openings. The elliptical expansion plug has a concave inner surface and a convex outer surface sized to allow hand-fitting within an elliptical hole to be plugged. The size of the elliptical expansion plug is such that the elliptical expansion plug generally matches the shape of the elliptical opening to be plugged, and further sized to provide a continuous seal between the outer edge of the elliptical expansion plug and the inner surface of the elliptical opening to be plugged after installation of the elliptical expansion plug. When the convex outer surface is eliminated by deforming the elliptical expansion plug with tools such as a hammer and punch until the convex outer surface is flat, the outer edge of the elliptical expansion plug comes into continuous contact with, and provides a continuous seal against, the inside circumference of the elliptical opening to be plugged.
申请公布号 US6394139(B1) 申请公布日期 2002.05.28
申请号 US20000625020 申请日期 2000.07.27
申请人 HUSKY CORPORATION 发明人 MITCHELL THOMAS O.;COATES, III GORDON R.
分类号 F16L55/10;(IPC1-7):F16L55/10 主分类号 F16L55/10
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