Methods for forming grooves and separating strengthened glass substrate sheets
US8616024B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2011 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Jun 22, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/15
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Methods for separating strengthened glass articles from glass substrate sheets and strengthened glass substrate sheets are described herein. In one embodiment, a method of separating a glass article from a glass substrate sheet includes forming at least one groove on at least one surface of the glass substrate sheet. The at least one groove continuously extends around a perimeter of the glass article and extends partially through a thickness of the glass substrate sheet. The method further includes strengthening the glass substrate sheet by a strengthening process and separating the glass article from the glass substrate sheet along the at least one groove such that one or more edges of the glass article are under compressive stress. In another embodiment, a strengthened glass substrate sheet includes an ion exchanged glass having one or more grooves in one or more strengthened surface layers, the one or more grooves defining glass articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.