F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 11/08 (2006.01) B29C 61/02 (2006.01) B32B 1/08 (2006.01) A01G 25/00 (2006.01)
Patent
CA 2707915
A flexible hose comprising, as viewed from the inside, at least one first inner layer (2) made of a first thermoplastic polymer material, at least one reinforcement layer (3) composed of a plurality of yarns (5,5',5",5"',...) knitted together to form a plurality of stitches (6,6',6",6"',...) of tricot type, and at least one second layer (4) made of a second thermoplastic polymer material. At least one first yarn (5) of said yarns (5,5',5"',...) that form said at least one reinforcement layer (3) is a high tenacity fiber and at least one second yarn (5",10) is a polyester fiber yarn or the like interwoven with the first yarn (5). A method of making such hose.
L'invention porte sur un tuyau flexible comprenant, vu de l'intérieur, au moins une première couche interne (2) constituée d'une première matière polymère thermoplastique, au moins une couche de renforcement (3) composée d'une pluralité de fils (5, 5', 5", 5'",...) tricotés ensemble pour former une pluralité de mailles (6, 6', 6", 6'",...) de type tricot et au moins une seconde couche (4) constituée d'une seconde matière polymère thermoplastique. Au moins un premier fil (5) desdits fils (5, 5', 5", 5'",...) qui forment ladite ou lesdites couches de renforcement (3) est une fibre à haute ténacité et au moins un second fil (5", 10) est un fil de fibre de polyester ou similaire entrelacé avec le premier fil (5). L'invention porte également sur un procédé de fabrication d'un tel tuyau.
Bergamo Giulio
Cegalin Alessandro
Mezzalira Alessandro
Nelti Giovanni
Vigolo Valentino
Fitt S.p.a.
Robic
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