Multi-layer porous member for a post-molding molded article conditioning apparatus
US7326046B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2005 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Oct 14, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/253
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A cooling tube assembly for operating on a malleable molded plastic part. The cooling tube assembly comprising a porous tube/insert having a profiled inner conditioning surface, and a vacuum structure configured to cooperate with the porous tube. In use, the vacuum develops a reduced pressure adjacent the inner conditioning surface to cause an outer surface of the malleable molded plastic part, locatable within the cooling tube assembly, to contact the inner conditioning surface of the porous insert so as to allow a substantial portion of the outer surface of the malleable part, upon cooling, to attain a profile substantially corresponding to the profile of the inner conditioning surface. The cooling tube assembly having a porous insert The conditioning body having a porous member that includes an inner porous portion formed from a thermally conductive first porous material that is at least partially enclosed by an outer porous portion formed from a thermally conductive second porous material preferably having a higher porosity than the first porous material. The outer porous portion is configured for providing a fluid communication pathway between the pressure structure and the in…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.