Hot fill container
US4863046A · kind A · utility
258Cited by
11References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1987 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Dec 24, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/0017
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A blow molded container which is formed of a polyester resin which has formation and shape characteristics wherein it may be hot filled with a liquid at a temperature on the order of 180.degree.-185.degree. F. with a maximum volumetric shrinkage of no greater than 1 percent. The container is formed from a specially configurated injection molded preform which is initially stretched axially only on the order of 25 percent, after which the preform is inflated and blow molded within a blow mold to a configuration which resists vacuum collapse or paneling of the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.