Cooling of extruded and compression molded materials
US6708504B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2001 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Dec 19, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B9/002
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a system and a method for cooling extruded and molded materials. The present invention is especially useful to thoroughly cool an extrudate by releasing a cooling fluid in a hollow portion of the extrudate. Hollows may be created in order to reduce material, weight, and/or processing time. A fluid below about 80 degrees Fahrenheit is released into the hollow so as to cool the material and to assist in solidification. Increases in production line throughput may result by rapidly cooling the molded material. Other uses for the present invention include injection molding, compression molding, gas assist molding, and co-extrusion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.