Manufacturing apparatus and method for multiple containment tubing
US6645410B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 17, 2002 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | May 17, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/605
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A manufacturing apparatus and method for multiple containment tubing produces continuous, nested tubing, or one tube within another tube, without having to fix the space between the tubes or position them concentrically. Consequently the tubing is very flexible and with uniform wall thickness. Moreover, because the inner surface of the outer tube and the outer surface of the inner tube are ribless, these kinds of features cannot interfere with the bending and twisting and the operation of the tubes comprising the tubing. The space between the tubes, or free space, has sufficient volume to contain a range of contents of the inner tube, as a safety containment device, if the inner tube ruptures, cracks, or otherwise breaks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.