Flexible, multilayered tube
US5789047A · kind A · utility
103Cited by
19References
25Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 8, 1995 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Dec 8, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249977
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A flexible, multilayered tube with superior chemical resistance, heat resistance, and airtightness, as well as superior flexibility and resistance of the inner surface to staining. The tube comprises a flexible, multilayered tube having a first layer comprised of a non-porous polytetrafluoroethylene structure and a second layer comprised of a porous polytetrafluoroethylene structure laminated onto the outer peripheral surface of said first layer. The tube is useful as a medical tubing and in particular useful as an endoscope tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.