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.

Date of Patent:
Oct. 31, 2017

Filed:

Mar. 17, 2011
Applicants:

John Frederick Bayne, Elmira, NY (US);

James William Brown, Painted Post, NY (US);

Michael Albert Joseph, Ii, Corning, NY (US);

Siva Venkatachalam, Painted Post, NY (US);

Sujanto Widjaja, Corning, NY (US);

Inventors:

John Frederick Bayne, Elmira, NY (US);

James William Brown, Painted Post, NY (US);

Michael Albert Joseph, II, Corning, NY (US);

Siva Venkatachalam, Painted Post, NY (US);

Sujanto Widjaja, Corning, NY (US);

Assignee:

CORNING INCORPORATED, Corning, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B 33/02 (2006.01); B28D 5/00 (2006.01); C03B 33/023 (2006.01); C03B 33/033 (2006.01); B26D 3/08 (2006.01);
U.S. Cl.
CPC ...
C03B 33/02 (2013.01); B26D 3/085 (2013.01); B28D 5/0011 (2013.01); C03B 33/023 (2013.01); C03B 33/033 (2013.01); Y10T 83/0341 (2015.04); Y10T 225/12 (2015.04); Y10T 225/371 (2015.04);
Abstract

A strengthened glass sheet is separated into undamaged sheet segments by mechanically scribing one or more vent lines of controlled depth into the sheet surface, the depths of the scribed lines being insufficient to effect sheet separation, and then applying a uniform bending moment across the vent lines to effect separation into multiple sheet segments, the vent lines being scribed from crack initiation sites comprising surface indentations formed proximate to the edges of the glass sheet.


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