Container made of a synthetic material and method for making same
US5511686A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 9, 1993 |
| Grant date | Apr 30, 1996 |
| Priority date | — |
| Expiry date | Nov 9, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/903
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A container made of a synthetic material, e.g., a bottle (10), comprising a closed bottom wall (11) and an opening (12) in the upper portion opposite the bottom wall. The container is produced according to a blow moulding, stretch blow moulding or thermoforming method, and its wall (9) comprises at least one fold line (13) consisting of a narrow linear area (13a) of said wall, in which the synthetic material has a different physical structure, whereby it is less plastically deformable but has at least as much tensile strength as the rest of the wall (9). This structural modification is obtained by mechanical or thermal processing or by exposure of the area in question to suitable particle radiation. The resulting bottle is readily foldable with a view to disposal after use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.