Method for post-molding a molded article conditioning apparatus with a selectively controlled transfer flow structure
US7364688B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2007 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Apr 10, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2949/3056
- 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 further including a suction channel therein that is configured to cooperate with a valve member for the control of a suction flow therethrough that assists in a transferring of the molded article into the cooling tube assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.