Apparatus for molding glass molds
US4964903A · kind A · utility
10Cited by
14References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1989 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Mar 8, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/808
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for molding a glass mold for subsequent molding of glass optical elements or lenses is disclosed. The apparatus comprises a master having a snout and a master ring disposed around the snout. The master and master ring may be of unitary construction and are disposed within constraining means or sleeve in an operative association with a means for exerting a force to effect molding. The apparatus also comprises a means for heating the assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.