Method and an apparatus for the production of shaped articles
US4714579A · kind A · utility
10Cited by
14References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1986 |
| Grant date | Dec 22, 1987 |
| Priority date | — |
| Expiry date | Jun 4, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/83
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Plastics-forming materials are shaped in a mold tool sealed by an associated closing unit. Lifting elements the stroke of which can be limited and controlled are associated with the mold tool. Shaping is accomplished by filling the mold cavity with reaction mixture while the mold tool halves are not completely sealed, sealing the filled mold and keeping the mold sealed until the article is completely cured. This method and apparatus are particularly useful in the production of dimensionally accurate geometrically complicated shaped articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.