Method of forming a container
US9044887B2 · kind B2 · utility
3Cited by
48References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2012 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Jun 1, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/004
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of forming a plastic container from a preform. The method comprises injecting a forming liquid into the preform at a predetermined system pressure range, a predetermined flow rate, and a predetermined duration sufficient to create a pressure spike at a peak pressure. The peak pressure being greater than the system pressure to urge the preform into the mold cavity, thus creating enhanced container definition, reduced post mold shrinkage, lower residual material stresses, and/or an improved transfer of the mold geometry and engraving to the final formed container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.