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:
Jan. 01, 2013

Filed:

Jul. 28, 2010
Applicants:

Matthew John Dejneka, Corning, NY (US);

Alexander Mikhailovich Streltsov, Corning, NY (US);

Daniel R. Harvey, Bath, NY (US);

Sinue Gomez, Corning, NY (US);

Timothy Michael Gross, Waverly, NY (US);

Inventors:

Matthew John Dejneka, Corning, NY (US);

Alexander Mikhailovich Streltsov, Corning, NY (US);

Daniel R. Harvey, Bath, NY (US);

Sinue Gomez, Corning, NY (US);

Timothy Michael Gross, Waverly, NY (US);

Assignee:

Corning Incorporated, Corning, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03B 33/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of cutting a glass sheet that has been thermally or chemically strengthened along a predetermined line, axis, or direction with high speed and with minimum damage on the cut edges. The strengthened glass sheet may be an aluminoborosilicate glass material having at least one alkali metal oxide modifier, and the ratio At least one damage line is formed within the strengthened glass sheet. The at least one damage line is formed outside the strengthened compressive stress surface layers and within the tensile stress layer of the strengthened glass sheet. The at least one damage line may be formed by laser treatment. A crack is initiated in the strengthened glass sheet and propagated along the at least one damage line to separate the strengthened glass sheet along the predetermined line, axis, or direction into at least two pieces.


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