Molding apparatus and method for applying positive pressure to molded container
US9636878B2 · kind B2 · utility
1Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2013 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Nov 12, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2049/7832
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of forming a container includes blow molding a primary form of the container inside a primary mold. The primary form has an exterior surface. The method also includes applying a fluid to the exterior surface of the primary form to shrink the primary form and to form a shrunken form of the container. Furthermore, the method includes blow molding a secondary form of the container from the shrunken form inside a secondary mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.