Energy efficient, electric rotary furnace for glass molding (repressing) precision optical blanks
US5858048A · kind A · utility
0Cited by
6References
17Claims
0Family size
Inventors
Key dates
| Filing date | Feb 25, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Feb 25, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B29/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A furnace for molding glass blanks includes a housing having a series of electrical heating stations and a rotary door adapted to receive glass blanks for processing. The furnace also includes a rotary turntable for receiving the glass blanks and a steering coil positioned to direct the glass blanks in a spiral pattern as they are heated at the electrical stations, a paddling platform for manual shaping, and a pressing station for pressing the glass blanks into a predetermined configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.