Method of manufacturing laminated flexible tubes
US8871320B2 · kind B2 · utility
1Cited by
4References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 8, 2007 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Sep 18, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1393
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A manufacturing process for flexible tube skirts including the steps of providing a multi-layer plastic film, cutting out a strip from the multi-layer plastic film, producing a cylindrical sleeve by rolling-welding the strip, and cutting out the sleeve to the desired length to obtain the tube skirts. The strip is cut out from a multi-layer plastic film which has a symmetrical structure in relation to its median plane, with symmetrical layers having the same thickness and made of the same plastic, having the same chemical composition and the same molar mass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.