Duct assembly, methods of manufacture and use thereof
AssigneeEmtelle UK Limited
InventorWilliam George RAE
Life of this patent
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Abstract
A duct assembly comprises a duct having an outer wall of polymer material, an insulating jacket coupled to the pipe, and a tracer wire within the insulating jacket. The insulating jacket is generally round in cross-section and is attached directly to the outer wall of the duct without the use of adhesive. The insulating jacket and tracer wire can be peeled as a unit from the outer surface of the duct. The insulating jacket is made of a thermoplastic polymer material and is attached to the outer wall of the duct by pressing together the outer wall of the duct and the insulating jacket while the polymer material of the insulating jacket is at or close to its melting point. The duct assembly can be made in a single continuous process. Methods of manufacture and use are disclosed.
Claims23
A duct assembly comprising a duct having an outer wall of polymer material, an insulating jacket coupled to the pipe, and a tracer wire within the insulating jacket, wherein the insulating jacket is generally round in cross-section and is attached directly to the outer wall of the duct without the use of adhesive.
A method of manufacturing a duct assembly, the duct assembly comprising a duct having an outer wall of polymer material, an insulating jacket coupled to the pipe, and a tracer wire within the insulating jacket, wherein the insulating jacket is generally round in cross-section and is attached directly to the outer wall of the duct without the use of adhesive.
Dependencies are inferred from the claim text.