Stretch blow moulding method and apparatus
US7981356B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2006 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | May 3, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7126
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for stretch blow moulding a preform into a desired article is disclosed. The method includes the steps of inserting the preform into a hollow mould, stretching the heated preform with a stretching member, filling the preform with an incompressible fluid such that the preform expands and is formed into the article by the mould and draining the incompressible fluid from the interior of the formed article. The apparatus comprises a hollow mould for receiving the preform, a stretching member for stretching the preform, an incompressible fluid filling means for filling the preform with an incompressible fluid such that the preform expands and a drain for draining the incompressible fluid from the formed article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.