F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 59/14 (2006.01) B29C 53/58 (2006.01) F16L 59/147 (2006.01)
Patent
CA 2583044
Apparatus for manufacturing a flexible tubular duct includes a mandrel (134), and substrate feeding means (132) for feeding a strip of flexible substrate material (104) to the mandrel. Means (133) is provided for bending the strip of substrate material to have a rounded encapsulating portion (106), into which is fed a stream (108) of loose fibrous insulating material. Means (110) is further provided for delivering an elongate reinforcing element (118) onto the strip of flexible substrate material. In operation, the rounded encapsulating portion and the reinforcing element are wound in a helical path around the mandrel so that the loose fibrous material is encapsulated as a core in the helically wound rounded encapsulating portion and the reinforcing element is also encapsulated by the strip of substrate material, whereby to form a reinforced flexible tubular duct.
L'invention concerne un dispositif de fabrication d'une conduite tubulaire souple, qui comprend un mandrin (134) ainsi que des moyens d'apport de substrat (132) qui alimentent le mandrin en bande de matériau substrat souple (104). Des moyens (133) permettent de cintrer la bande de matériau substrat pour former une partie d'encapsulation arrondie (106) dans laquelle est introduit un courant de matériau isolant en bourre (108). Ces moyens (110) permettent également d'appliquer un élément de renfort allongé (118) sur la bande de matériau substrat souple. Lors du fonctionnement, la partie d'encapsulation arrondie, conjointement avec l'élément de renfort, sont enroulés sur un trajet hélicoïdal autour du mandrin de façon à encapsuler le matériau en bourre sous forme d'âme à l'intérieur de la partie d'encapsulation arrondie enroulée de manière hélicoïdale, et à encapsuler l'élément de renfort dans la bande de matériau substrat pour obtenir une conduite tubulaire souple renforcée.
Borden Ladner Gervais Llp
Nova-Duct Technologies Pty Ltd
LandOfFree
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