Title:
DRAIN PIPE AND MANUFACTURING METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2017/217290
Kind Code:
A1
Abstract:
A water permeable drain pipe comprising a three-dimensional mesh structure, a filter material that covers the outer circumferential face of the three-dimensional mesh structure, and netting that covers the outer circumferential face of the filter material, wherein the drain pipe comprises a first bonded portion where the outer circumferential face of the filter material and the inner circumferential face of the netting are bonded by thermofusion, and a second bonded portion where the outer circumferential face of the three-dimensional mesh structure and the inner circumferential face of the filter material are bonded by thermofusion.
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Inventors:
SHIMIZU TOSHITAKA (JP)
Application Number:
PCT/JP2017/021071
Publication Date:
December 21, 2017
Filing Date:
June 07, 2017
Export Citation:
Assignee:
MAINMARK AQUATEK CO LTD (JP)
International Classes:
E02D3/10
Foreign References:
| JPH02183006A | 1990-07-17 | |||
| JPS5097208U | 1975-08-13 | |||
| JPH09189025A | 1997-07-22 | |||
| JPH02136418A | 1990-05-25 | |||
| JP3166148U | 2011-02-24 | |||
| EP2708656A1 | 2014-03-19 |
Attorney, Agent or Firm:
AIWA INTERNATIONAL PATENT AGENCY (JP)
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