Method and apparatus for breaking brittle materials
US5776220A · kind A · utility
200Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1995 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Dec 15, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T225/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A glass breaking system is provided for breaking large sheets of glass into small sheets, in which a laser beam having an elongated beam spot shape, with a largest dimension which is at least 20 mm, more preferably at least 30 mm, and most preferably at least 40 mm, is moved across a glass sheet to produce a partial crack score line. The glass sheet is then separated along the score line by applying a bending moment in the area of the partial crack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.