Semi rigid container and method of making and using same
US5967357A · kind A · utility
Inventors
Key dates
| Filing date | Jul 14, 1998 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Jul 14, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65F1/00
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A semi rigid container comprising a plurality of generally rectangular side walls and a bottom wall attached to the bottom of each side wall. A plurality of flexible supporting frames are attached to each side wall to expand the container's open top and to brace the side walls into a free standing container for handy storage, transportation or disposal of refuse or other articles. A drawstring is provided along the top of the container for easy closure. The semi rigid container is made by attaching the flexible supporting frames to one or more sheets of flexible material, layering the sheet or sheets, and sealing the open margins of the layered sheet or sheets corresponding to the container's sides and bottom. The semi rigid container can be easily collapsed into a stack of side walls, then coiled into three adjacent loops and inserted into a storing receptacle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.