Method for producing a package for flowable substances
US5288448A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1992 |
| Grant date | Feb 22, 1994 |
| Priority date | — |
| Expiry date | Jul 14, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B50/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The present invention includes of a method for producing a cross sectionally tetragonal tube package for flowable substances, in particular milk and juices. A carrier material (12) coated with synthetic plastic is cut longitudinally and horizontally through to center (35) and then shaped to form two welds (13,14) which made up the relevant tube (1) of the package. The stepped edge (10) of each web (13,14) serves as the top-end edge (10,16) of the tube (1), the blank (I) of which is separated form the web (13,14) by (at 41) parting it in transverse relationship to their direction of movement (15), the blank being provided with a longitudinal sealing seam for formation of the tube. At the top end of the tube (1), there are formed extensions of oppositely disposed side walls (3,5) and projecting wall panels (8,9) which are folded over into the surface of the top (7), the top (7) being integrally moulded on the free edge (10) of the wall panel ( 8,9) and the adjacent stepped end edge (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.