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:
Sep. 01, 2015
Filed:
Jun. 29, 2011
Applicant:
Eunyoung Park, Elmira, NY (US);
Inventor:
Eunyoung Park, Elmira, NY (US);
Assignee:
CORNING INCORPORATED, Corning, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C03B 17/00 (2006.01); C03B 17/06 (2006.01);
U.S. Cl.
CPC ...
C03B 17/064 (2013.01); Y10T 137/0402 (2015.04);
Abstract
The invention is directed to a method of preventing isopipe sag when using the overflow drawdown fusion process for making flat glass sheets. The method applies a vertical restraint on at least one end of an isopipe resting on a support to thereby reduce sage and/or the rate of sag during use of the isopipe. Using the vertical restraint block in accordance with the invention, the sag and/or rate of sag has been found to be reduced by at least 40 percent relative to an isopipe that does not use the vertical restraints of the invention or a compressive force along the sides of the isopipe.