发明授权
- 专利标题： Porous pipe and apparatus and method of producing the same
- 专利标题（中）： 多孔管及其制造方法
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申请号： US10094627申请日： 2002-03-12
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公开(公告)号： US06905286B2公开(公告)日： 2005-06-14
- 发明人: Hiroyuki Masui , Tatsuya Machino , Syoji Hirao , Akihiro Fujii , Keiji Nakamata
- 申请人： Hiroyuki Masui , Tatsuya Machino , Syoji Hirao , Akihiro Fujii , Keiji Nakamata
- 申请人地址： JP Osaka
- 专利权人： Totaku Industries, Inc.
- 当前专利权人： Totaku Industries, Inc.
- 当前专利权人地址： JP Osaka
- 代理机构： Wenderoth, Lind & Ponack L.L.P.
- 优先权： JP2001-068412 20010312
- 主分类号： E02B11/00
- IPC分类号： E02B11/00 ; A01G25/02 ; E03F1/00 ; E03F3/04 ; F16L9/06 ; F16L9/12 ; F16L11/11
摘要：
A porous pipe having an excellent absorbing and draining function, a producing apparatus capable of producing a porous pipe at high speed and low cost, and a method of producing a porous pipe are provided. The porous pipe is a pipe formed by spirally winding a tape. The pipe is formed by a hole forming portion 13 for forming a recess or a notch or a hole in the tape 2 molded by a tape molding portion 11, and the hole forming portion 13 is located between the tape molding portion 11 and a pipe forming portion 12 so that the tape 2 is molded, holes 6 are formed, and a pipe 1 is formed continuously. The holes 6 are formed into a predetermined shape by elongating the hole 6 from a side of the pipe forming portion 12. In the pipe 1 formed thereby, a peripheral wall portion of the hole 6 is gradually thin-walled toward an outer peripheral face of the hole.