Process for the manufacture and separation from the mold of injection molded articles
US4935187A · kind A · utility
5Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1989 |
| Grant date | Jun 19, 1990 |
| Priority date | — |
| Expiry date | Jun 29, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2083/005
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for the manufacture of injection molded articles out of material that is capable of being processed in an injection molding process comprising injection fluid material into a hollow space of a mold of a desired form, hardening or reacting the injected material at raised temperatures and subsequently separating the molded article from the mold at the same high tempeature by the aid of inert gas and/or air, pressed between the molded article and the mold, which is regulated by a self readjusting conical valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.