Method of producing an aseptic package for liquids
US5074099A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1989 |
| Grant date | Dec 24, 1991 |
| Priority date | — |
| Expiry date | Dec 28, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2110/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention describes a liquids package comprising a tube with side walls at the ends of which there are fitted a flat bottom (3) and a top which incorporates a pourer orifice, the tube consisting of paper and the bottom (3) being so welded to the tube along part of an edge by means of a plastics rim (21) that the flat main area (14) of the bottom (3) is disposed at a distance from the outer cut edge of the tube. So that the package can also be constructed for aseptic purposes and in order to render production simple and economical, it is envisaged that the bottom (3) comprise, separate from the tube, a main area (14) of paper coated with synthetic plastics material, being provided with a metal interlining, like the tube. According to the method of producing such a package, the bottom (3) is so prefabricated that its main area (14) consists of paper provided with a metal interlining, the bottom being cut therefrom and the main area (14) being connected along its marginal surface to a synthetic plastics rim (21) so that the bottom (3) prefabricated in this way can be taken from stock or can be welded on the dividing end edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.