An improved duct and method of construction

Details An improved duct and method of construction An improved duct and method of construction

F - Mech Eng,Light,Heat,Weapons

24

F

F24F 13/02 (2006.01) F16L 11/00 (2006.01) F16L 11/08 (2006.01) F16L 11/12 (2006.01) F16L 11/24 (2006.01) F16L 59/153 (2006.01)

Patent

CA 2380885

A flexible duct construction and method of manufacture is provided in which the duct is formed from a continuously wound elongate member comprising a core of insulating material, a reinforcing wire element and a casing comprising a strip of substrate material extending around the core and the reinforcing element. In the preferred method of manufacture, adhesive is applied to one side of the strip of substrate, the casing has a tail part extending from a generally circular part which encapsulates the core and the reinforcing element, and the elongate encapsulated insulating member is wound helically so that the circular part of one winding overlies and adheres to the tail part of the previous winding.

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