US 12,077,462 B2
Laminated glass ribbons and apparatuses for forming laminated glass ribbons
Frank Coppola, Horseheads, NY (US); Vladislav Yuryevich Golyatin, Avon (FR); Monica Jo Mashewske, Lexington, NC (US); and Jae Hyun Yu, Big Flats, NY (US)
Assigned to CORNING INCORPORATED, Corning, NY (US)
Filed by Corning Incorporated, Corning, NY (US)
Filed on Nov. 16, 2022, as Appl. No. 17/988,130.
Application 17/988,130 is a division of application No. 15/777,543, granted, now 11,530,153, previously published as PCT/US2016/062386, filed on Nov. 17, 2016.
Claims priority of provisional application 62/258,160, filed on Nov. 20, 2015.
Prior Publication US 2023/0076980 A1, Mar. 9, 2023
Int. Cl. C03B 17/06 (2006.01); B32B 17/06 (2006.01); C03B 17/02 (2006.01)
CPC C03B 17/064 (2013.01) [B32B 17/06 (2013.01); C03B 17/02 (2013.01); Y02P 40/57 (2015.11)] 10 Claims
OG exemplary drawing
 
1. A glass ribbon comprising:
a first clad glass layer and a second clad glass layer;
a core glass layer disposed between the first clad glass layer and the second clad glass layer;
an inner portion and an edge bead extending in a length direction along an edge of the inner portion and thicker than the inner portion, each of the inner portion and the edge bead comprising the core glass layer and the first and second clad glass layers; and
a thickness ratio comprising a ratio of a thickness of the glass core layer to a sum of a thickness of the first glass clad layer and a thickness of the second glass clad layer,
wherein the thickness ratio at all points across an entirety of the glass ribbon in a width direction is within 100% of a mean thickness ratio across the glass ribbon in the width direction, and
wherein, when viewed along the width direction in a cross section through the edge bead, an outermost portion of the core glass layer is flush with or covered by an outermost portion of the first and second clad glass layers.