Stackable tube body having a layer of sealant material
US4237939A · kind A · utility
4Cited by
2References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1979 |
| Grant date | Dec 9, 1980 |
| Priority date | — |
| Expiry date | Mar 12, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D35/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A stackable tapered tube body has an annular inwardly directed bead or corrugation in the region of the sealant layer. This provides that the tube bodies do not touch each other directly and that in particular the sealant layer is protected when tube bodies are stacked together. The beads or corrugations are produced by the tube shell being gripped substantially over its entire periphery, and deformed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.