Multiple layer insulating sleeve

F - Mech Eng,Light,Heat,Weapons – 16 – L

Patent

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Details

F16L 59/02 (2006.01)

Patent

CA 2490090

Multilayer sleeves for insulating or protecting elongated substrates are disclosed. The sleeves are continuously knitted in different sections integrally joined end to end, the sections being formed of different filamentary members chosen for desired characteristics. The sleeves are formed into the multilayer configuration by reverse folding the sleeves inwardly to place one section coaxially within another. Sleeve ends may be finished with welts to prevent raveling and serve as a clinch on the elongated substrates. Rib knits are used to form insulating air pockets lengthwise along the sleeves to augment the insulating effectiveness.

La présente invention concerne des gaines isolantes multicouches utilisées pour isoler et protéger des substrats allongés. Les gaines sont tricotées en continu en sections différentes intégralement reliées bout à bout, les sections étant formées de différents éléments filamenteux choisis pour leurs caractéristiques désirées. Pour que les gaines présentent la configuration multicouche, on replie sur l'intérieur les gaines afin de placer coaxialement une section dans une autre. Les extrémités de gaine peuvent être finies avec des ourlets pour empêcher l'effilochage et former un repli sur les substrats allongés. Des côtes sont utilisées pour former des poches d'air isolantes sur la longueur des gaines afin d'augmenter l'efficacité de l'isolation.

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