Method of making stabilized flexible container for flowable materials
US5230689A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 17, 1992 |
| Grant date | Jul 27, 1993 |
| Priority date | — |
| Expiry date | Aug 17, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S493/906
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A stabilized flexible container for receiving flowable materials includes a top wall, a bottom wall, and a perimeter wall formed from four double layered side walls seamed together along adjacent side edges. The exterior layer of the double layered side walls is greater in length than the interior layer and is folded inwardly upon itself and stitched along the side edges to form a pocket in a space between the interior and exterior layers of the double layered side wall with the side edges of the exterior layer in the pocket region being free from the seam connecting the adjacent side walls. The interior layers of the side walls are seamed together in the pocket region and are seamed along their bottom edges to the perimeter of the bottom wall. Rigid panels are inserted into the space between the interior and exterior layers of the side walls and are secured in the pocket to prevent the rigid panels from slipping out of the side walls. A separate rigid base may be placed under the containers for additional stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.