Helically wound plastic tubing with variable profile thickness and methods of making the same
US9625066B2 · kind B2 · utility
6Cited by
24References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2014 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Apr 3, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L11/112
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.