Device for forming a pyrolytic coating on a hot glass substrate
US5709726A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1995 |
| Grant date | Jan 20, 1998 |
| Priority date | — |
| Expiry date | Nov 2, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C16/453
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A device for the formation, by pyrolysis, of a coating on a face of a hot glass substrate includes a vault; support elements for conveying the substrate along a path through a coating chamber defined between the main vault and the substrate; elements for supplying and distributing gaseous reagent to the coating chamber; elements for discharging exhaust gas from the coating chamber; and a plurality of struts. The elements for supplying and distributing gaseous reagent to the coating chamber include an ejection nozzle having defined therein a slot which opens directly into the coating chamber, has opposing longitudinal internal walls, extends transverse to the path of the substrate, and has a length which is substantially equal to the coating width of the coating formed. The plurality of struts are positioned at spaced intervals and connect the opposing walls of the slot together to thereby maintain the walls of the slot in substantially parallel disposition. The ejection nozzle has longitudinal internal walls which define a continuous convergent path which terminates at and communicates with the slot and has an angle of convergence (.alpha.), thereby causing the flow of gaseous reag…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.