Shrinkage reduction of blow molded oriented pet bottle
US4260567A · kind A · utility
27Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1979 |
| Grant date | Apr 7, 1981 |
| Priority date | — |
| Expiry date | Feb 26, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/904
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process and apparatus for heat setting side walls of biaxially oriented thermoplastic resin containers to reduce shrinkage of the container and container treated by the process. Heating is by infrared radiation while shielding portions of the container. The apparatus comprises container handling systems to provide a fully automated system capable of being incorporated in present container production lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.