F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 11/12 (2006.01) F16L 11/08 (2006.01)
Patent
CA 2337610
This device is a hose for air conditioning purposes that is a barrier hose. The hose comprises an innermost tube (1) of a thermoplastic vulcanizate. The innermost tube of thermoplastic vulcanizate is coextruded with a flexible polyamide barrier material as a second tube (5). A backing (2) of thermoset rubber is extruded or calendared over the polyamide barrier tube. A reinforcement layer (4) follows which is then covered with an EPDM outer cover (3).
Le dispositif faisant l'objet de cette invention est un tuyau de climatisation qui constitue un tuyau barrière. Ce tuyau comporte un tube interne (1) en vulcanisat thermoplastique. Ce tube interne en vulcanisat thermoplastique est coextrudé avec un matériau barrière en polyamide souple formant un second tube (5). Un renfort (2) en caoutchouc thermodurcissable est extrudé ou calandré sur le tube barrière en polyamide. Puis on applique une couche de renforcement (4), laquelle est ensuite recouverte d'une enveloppe externe EPDM (caoutchouc éthylène-propylène-diène) (3).
Aeroquip Corporation
Borden Ladner Gervais Llp
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