The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 16, 2019
Filed:
May. 22, 2012
James William Brown, Painted Post, NY (US);
Cho-cheng (George) Hsieh, Taipei, TW;
Michael Albert Joseph, Ii, Corning, NY (US);
Yen Chia (Gina) Pai, Taichung, TW;
James William Brown, Painted Post, NY (US);
Cho-Cheng (George) Hsieh, Taipei, TW;
Michael Albert Joseph, II, Corning, NY (US);
Yen Chia (Gina) Pai, Taichung, TW;
CORNING INCORPORATED, Corning, NY (US);
Abstract
A method of separating a strengthened glass sheet includes positioning a serrated scribing wheel at a position spaced apart from a first edge of the glass sheet and offset below a top surface of the glass sheet, where the glass sheet comprises a surface compression layer of layer depth DOL and a central region. The method also includes translating the serrated scribing wheel in a first direction at an initiation speed such that the serrated scribing wheel forms a crack initiation site comprising surface indentations extending into the surface compression layer, accelerating the serrated scribing wheel in the first direction from the initiation speed to a scoring speed to scribe a score line extending into the glass sheet to a median crack depth greater than DOL, and stopping the serrated scribing wheel in the first direction before the score line reaches a second edge of the glass sheet.