Methods for controlling separation between glasses during co-sagging to reduce final shape mismatch therebetween
US11236003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2018 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Feb 2, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B23/0352
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Embodiments of the disclosure relate to a method of controlling the flow of fluid, such as air, between a stack of glass sheets during a co-sagging process. In embodiments, this involves a particular method and certain mechanical means of applying force at or near the edges and/or corners of a stack of glass sheets during a co-sagging process. In other embodiments, this involves creating low pressure regions at or near the edges and/or corners during the co-sagging process. In particular, controlling the flow of fluid between glass sheets is particularly suitable for preventing shape mismatch between two glass sheets having different thicknesses and/or compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.