Method of manufacture of flexible tube containers
US5942071A · kind A · utility
0Cited by
4References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1998 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Jan 29, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1013
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of manufacture of a shaped flexible tube container, typically having a square or "D" section tube, from a flexible plastic tube (15) of substantially round cross section, in which longitudinally extending creases (31, 32) are formed in the wall of the tube by a creasing means (16, 17) acting on the external surface of the tube. The creasing means preferably comprise at least air of rollers (16 or 17) and the tube passes between the two rollers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.