HELICALLY WOUND PLASTIC TUBING WITH VARIABLE PROFILE THICKNESS AND METHODS OF MAKING THE SAME

摘要

Plastic tubing including a thermoplastic ribbon helically wrapped and heat bonded to itself to form a tubing wall and a thermoplastic reinforcement located helically around and along the tubing wall. At least a thickness of the tubing wall or a size of the thermoplastic reinforcement is varied along the tubing wall.

主权项

1. A plastic tubing, comprising:
a thermoplastic ribbon helically wrapped and heat bonded to itself to form a tubing wall, wherein a first cross section of the thermoplastic ribbon across a width of the thermoplastic ribbon has a greater area than a second cross section of the thermoplastic ribbon across the width of the thermoplastic ribbon, the second cross section of the thermoplastic ribbon located away from the first cross section of the thermoplastic ribbon along a length of the helically wrapped thermoplastic ribbon; and a helical thermoplastic reinforcement located around and along the tubing wall.