Mold for press-molding glass elements
US4721518A · kind A · utility
26Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1985 |
| Grant date | Jan 26, 1988 |
| Priority date | — |
| Expiry date | Dec 10, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/026
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A mold for press-molding glass elements comprising a base member made of a super hard alloy or a cermet; at least one intermediate layer made of a nitride, a carbide, an oxide or a metal, provided on the base member; and a noble metal layer provided on the intermediate layer for forming a mold surface. An active metal contained in the base member is prevented from diffusing to the mold surface by the presence of the intermediate layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.