Patent ID: 11813403

Abstract:
A method of forming a hose includes: extruding a web of plastics material from a first extruder; helically winding the extruded web about a mandrel or at least one rotating rod to form a wall of the hose; feeding an electrical wire into a second extruder; extruding a bead of plastics material around the electrical wire from the second extruder such that the extruded bead includes the electrical wire at a location within a cross-section of the extruded bead; cooling the extruded bead to cool the plastics material adjacent the location to prevent migration of the electrical wire away from the location; re-heating the extruded bead to cause outer surface portions of the plastics material of the extruded bead to become molten; and helically winding the extruded bead onto and about an external surface of the wall to provide the wall a support helix that incorporates the electrical wire.