Flexible packaging tube
US5816451A · kind A · utility
107Cited by
6References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 23, 1996 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Apr 23, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D35/08
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A flexible packaging tube comprising a malleable elongate tubular body obtained by blow-molding, having a closed bottom without folding or crimping due to heat-sealing, and a cylindrical outlet portion formed by a shoulder zone at the top of said tubular body. When the tubular body is seen in front elevation, its apparent width increases downwardly from the shoulder zone where the tubular body connects with the top cylindrical outlet portion to the bottom end constituting the bottom of the tubular body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.