Fluid cooling of injection molded plastic articles
US4177238A · kind A · utility
20Cited by
16References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1977 |
| Grant date | Dec 4, 1979 |
| Priority date | — |
| Expiry date | Dec 14, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/7306
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and system for cooling an injection molded plastic article by forming a portion of a mold cavity of fluid permeable porous material that communicates with a cooling liquid passageway and subjecting the cooling liquid to different pressures to vary the flow of fluid through the porous plug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.