- 专利标题: Woven irrigation tubing, apparatus and method of making same
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申请号: US17536030申请日: 2021-11-28
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公开(公告)号: US11441706B2公开(公告)日: 2022-09-13
- 发明人: Michael Mitchell
- 申请人: Delta Plastics of the South
- 申请人地址: US AR Little Rock
- 专利权人: Delta Plastics of the South
- 当前专利权人: Delta Plastics of the South
- 当前专利权人地址: US AR Little Rock
- 代理机构: Belasco Jacobs & Townsley, PC
- 代理商 David A. Belasco
- 主分类号: F16L11/08
- IPC分类号: F16L11/08 ; B32B27/08 ; B32B27/12 ; B32B27/32 ; B29C48/00 ; B29C48/08 ; B29C48/28 ; D03D15/46 ; B29D23/00 ; D03D3/02 ; D03D11/00 ; B32B1/08 ; B32B5/02 ; F16L11/12 ; B29K23/00 ; B29L23/00 ; F16L11/02 ; F16L11/10
摘要:
Woven irrigation tubing comprising a woven, extrusion coated & laminated tube formed of a high density polyethylene (HDPE) outer layer, a low density polyethylene (LDPE) middle layer and a linear low density polyethylene (LLDPE) inner layer. The finished tubing is treated for ultraviolet resistance. The tubing is tied off at a distal end with a proximal end connected to a pressurized irrigation source. Watering holes are created in the tubing at spaced intervals and the resulting water streams are directed into parallel plowed furrows. The tubing is completely recyclable. The tubing is formed by manufacturing tape for the woven outer tubing cover, stretching the tape along its length to strengthen it, weaving the outer layer from the tape, flattening the woven outer layer, extrusion coating each surface of the outer layer with LDPE, laminating the LLDPE inner layer to the LDPE, reversing and winding the tubing for storage and distribution.
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