Mold half-block for injection molding an optical article out of thermoplastic material, and a mold including such a half-block
US6695607B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2001 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Dec 17, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/808
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A mold half-block possesses at least one mold recess defined transversely by the working face of a shell provided with heat-transfer parts that are intrinsic and both-way (both heating and cooling), the shell including a base that receives all of the heat-transfer parts and a removable insert fitted on the base and carrying the working face, the insert having no intrinsic heat-transfer parts and being thermally regulated solely by heat transfer with the base. The insert is in the form of a cap which fits over at least a head portion of the base, and the heat-transfer parts of the base are allocated to the head portion of the base having the insert fitted thereover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.