Methods of processing a glass ribbon

Patent metadata

Field	Value
Publication number	US-9822028-B2
Application number	US-201514804605-A
Country	US
Kind code	B2
Filing date	Jul 21, 2015
Priority date	Nov 9, 2012
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

Methods of processing a glass ribbon are provided. The method includes the step of traversing the glass ribbon through a travel path at a predetermined velocity and severing the glass ribbon to create an upstream web and a downstream web. The method further includes the step of increasing a relative velocity of a downstream edge portion with respect to an upstream edge portion to create a gap between an upstream severed edge and a downstream severed edge. In other example methods, a segment of the glass ribbon is removed to create a gap between an upstream severed edge and a downstream severed edge. In still further example methods, an upstream severed edge is directed along a second travel path to create a gap between the upstream severed edge and a downstream severed edge.

First claim

What is claimed is:

1. A method of processing a glass ribbon comprising the steps of:
(I) traversing the glass ribbon through a travel path at a predetermined velocity, the glass ribbon including a width extending transverse to the travel path between a first side edge and a second side edge, wherein at least one of the first or second side edge includes a handling tab with a mounting portion including an aperture configured to expose the entire respective first or second side edge within a target area;
(II) severing the glass ribbon at a first location transverse to the travel path;
(III) severing the glass ribbon at a second location transverse to the travel path such that a segment of glass ribbon is severed from an upstream web including an upstream severed edge and a downstream web including a downstream severed edge; and
(IV) removing the segment of the glass ribbon such that a gap is created between the upstream severed edge and the downstream severed edge.

2. The method of claim 1 , wherein a sever path created during step (II) is substantially parallel to a sever path created during step (III).

3. The method of claim 1 , further comprising winding the severed downstream web onto a first storage roll.

4. The method of claim 3 , wherein step (II) is initiated in response to the first storage roll reaching a predetermined storage capacity.

5. The method of claim 3 , wherein the downstream severed edge of the upstream web is introduced to a second storage roll to begin winding the upstream web on the second storage roll.

6. A method of processing a glass ribbon comprising the steps of:
(I) traversing the glass ribbon through a first travel path at a predetermined velocity and winding the glass ribbon on a first storage roll, wherein the glass ribbon comprises a width extending transverse to the first travel path between a first side edge and a second side edge, wherein at least one of the first side edge or the second side edge includes a handling tab with a mounting portion including an aperture configured to expose the entire respective first side edge or second side edge within a target area;
(II) severing the glass ribbon along a direction transverse to the first travel path through the at least one of the first side edge or the second side edge within the target area to create an upstream web including a severed edge and a downstream web including a severed edge; and
(III) directing the severed edge of the upstream web along a second travel path to create a gap between the severed edge of the upstream web and the severed edge of the downstream web and winding the upstream web on a second storage roll.

7. The method of claim 6 , wherein step (II) is initiated in response to the first storage roll reaching a predetermined storage capacity.

Assignees

• Corning Inc

Inventors

• Chang Chester Hann Huei
• Fleming Todd Benson
• Marshall Dale Charles
• Merz Gary Edward
• Rhoads Christopher Michael
• Tosch John Earl
• Trzeciak Thaddeus Francis

Classifications

• Y02P40/57

  Improving the yield, e-g- reduction of reject rates · CPC title

• C03B33/0235 Primary

  Ribbons · CPC title

• Y10T83/0467

  By separating products from each other · CPC title

• B65H2301/121

  for sheet handling processes, i.e. wherein the web is cut into sheets · CPC title

• C03B21/00 Primary

  Severing glass sheets, tubes or rods while still plastic · CPC title