Title:
MULTILAYER FLEXIBLE IRRIGATION HOSE
Document Type and Number:
WIPO Patent Application WO/2010/052657
Kind Code:
A3
Abstract:
A multilayer flexible irrigation hose. The hose (1) comprises an inner layer (2) made of a first thermoplastic polymer material, an outer layer (3) made of a second thermoplastic polymer material, a first textile reinforcement layer (4) and a second textile reinforcement layer (5) in mutually overlapping relation. The first and second textile reinforcement layers (4, 5) are knitted with stitches (6) of the tricot type, having wales of stitches (7, 7') and lines of stitches (8, 8'). The lines of stitches (8, 8') of said first and second textile layers (4, 5) have opposite inclinations to the longitudinal axis (X) of the hose, and the wales of stitches (7, 7') of at least one of said first and second textile layers (4, 5) are substantially parallel to said longitudinal axis (X). A method of making said hose, a line (10) for manufacturing same and a knitting apparatus (20) for making such hose.
Inventors:
MEZZALIRA ALESSANDRO (IT)
Application Number:
PCT/IB2009/054903
Publication Date:
September 02, 2010
Filing Date:
November 04, 2009
Export Citation:
Assignee:
FITT SPA (IT)
MEZZALIRA ALESSANDRO (IT)
MEZZALIRA ALESSANDRO (IT)
International Classes:
F16L11/08; D04B9/44; D04B1/22
Foreign References:
| US1972756A | 1934-09-04 | |||
| US2788804A | 1957-04-16 | |||
| US2355019A | 1944-08-01 | |||
| EP0623696A1 | 1994-11-09 |
Attorney, Agent or Firm:
MAROSCIA, Antonio (Contrà Porti 21, Vicenza, IT)
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