发明名称 Fremgangsmåde og rørstykke til tilvejebringelse af et radialt udadrettet endekantvulst på et rør
摘要 PCT No. PCT/DK93/00369 Sec. 371 Date May 18, 1995 Sec. 102(e) Date May 18, 1995 PCT Filed Nov. 11, 1993 PCT Pub. No. WO94/12295 PCT Pub. Date Jun. 9, 1994In this method a short pipe element (2) with a radially outwards directed bead (3) at its end rim (4) is inserted into a pipe, and a radially outwards directed bead (7, 8) is rolled in the other end (5) of the pipe element (2) and in the pipe (1), such that the pipe element is fixed inside the pipe. The pipe element (2) may before insertion into the pipe be provided with at least two radially outwards directed beads (9, 10), causing the pipe element after insertion to be tightly clamped and fixed inside the pipe, and the pipe element (2) may over a part of its outer surface be coated with a sealing material (13).
申请公布号 DK139392(A) 申请公布日期 1994.05.21
申请号 DK19920001393 申请日期 1992.11.20
申请人 LINDAB A/S 发明人 KRICHAU, PETER;ANDRESEN, WERNER J.
分类号 B21D39/04;F16L13/16;(IPC1-7):B21D39/04;F16L19/03 主分类号 B21D39/04
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