发明名称 CONVOLUTE TUBE AND METHOD FOR MAKING SAME
摘要 An elongate, convolutely wound, adhesively secured tube and method for making same from elongate sheet material and being characterized by eliminating the necessity of having a high moisture content in the adhesive for holding the wound tube together following winding, wherein the method includes applying relatively slow acting, low moisture adhesive to a major portion of a first surface of the sheet material, applying relatively fast acting adhesive to a minor portion of the first surface substantially adjacent a first longitudinal edge thereof and a convolutely winding the sheet material transversely of the length thereof into a convolute tube with the first longitudinal edge forming an outside trailing edge and the fast acting adhesive acting to immediately secure the trailing edge to the outer surface of the convolute tube to retain the convolute tube in the wound condition during activation of the slow acting, low moisture adhesive.
申请公布号 US3704730(A) 申请公布日期 1972.12.05
申请号 USD3704730 申请日期 1969.06.23
申请人 SUNOCO PRODUCTS CO. 发明人 WERNER WITZIG
分类号 F16L9/16;(IPC1-7):F16L9/14 主分类号 F16L9/16
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