Method for making a blown bag-in-box composite container
US5049349A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1989 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Oct 26, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2949/0715
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improved bag-in-box (BIB) composite container in which the container's inner bag is blow-molded inside the container's outer box. In one preferred method the body portion, which is a heated and softened preform preferably made of polyethylene terephthalate (PET) is placed within a carton through an aperture in the carton's top end panel, followed by injecting a pressurized gas into the preform to expand it into a bag within the outer box. In another particularly preferred method, a parison is extruded into an outer carton through an aperture in the carton's top end panel, followed by injecting a pressurized gas into the parison to expand it into a bag within the outer box.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.