Dual-elevation edge roll system for fused downdraw glass forming

Patent metadata

Field	Value
Publication number	US-11485667-B2
Application number	US-202017424601-A
Country	US
Kind code	B2
Filing date	Jan 22, 2020
Priority date	Jan 25, 2019
Publication date	Nov 1, 2022
Grant date	Nov 1, 2022

Abstract

Various improvements for dual-elevation edge roll system used in fused downdraw glass forming process are disclosed.

First claim

What is claimed is:

1. A coaxial locking collar assembly comprising:
a collar piece comprising:
a locking portion comprising a central bore extending there through for receiving a threaded screw there through; and
a fixed portion comprising a second central bore that is coaxially aligned with the central bore of the locking portion; and
a threaded bushing comprising a central bore that extends through its entire length and a male threaded portion;
wherein the second central bore of the fixed portion is female threaded for threadably receiving the male threaded portion of the threaded bushing;
wherein the threaded bushing is configured to be threaded into the second central bore of the fixed portion, the central bore of the threaded bushing and the central bore of the locking portion are coaxially aligned for receiving the threaded screw there through;
wherein the locking portion and the fixed portion of the collar piece are defined by a cut or a gap that extends partially through the collar piece in a transverse orientation to the central bore; and
wherein the locking portion comprises a radially extending slot that extends through to the central bore and separates one side of the locking portion into two ends,
wherein the threaded bushing is configured to be threaded into the second central bore of the fixed portion and the threaded screw is configured to be threaded through the threaded central bore of the threaded bushing and extend through the central bore of the locking portion, bringing the two ends of the locking portion towards each other, reducing the diameter of the central bore of the locking portion and clamping or locking onto the threaded screw.

2. The coaxial locking collar assembly of claim 1 , wherein the collar piece is a unitary piece.

3. The coaxial locking collar assembly of claim 1 , wherein the second central bore of the fixed portion has a larger diameter than the central bore of the locking portion allowing the threaded portion of the threaded bushing to be threadably received into the second central bore.

4. The coaxial locking collar assembly of claim 1 , wherein the two ends of the locking portion are extended outward into two flattened tabs,
wherein a first flattened tab of the two flattened tabs comprises a threaded hole to threadably receive a locking screw and a second flattened tab of the two flattened tabs comprises an unthreaded through-hole allowing the locking screw to be inserted there through and reach the threaded hole in the first flattened tab of the two flattened tabs.

5. The coaxial locking collar assembly of claim 4 , wherein the locking screw comprises a flared head that pushes against the second flattened tab as the locking screw is threaded into the first flattened tab bringing the two flattened tabs closer together by clamping the locking portion around the threaded screw.

6. The coaxial locking collar assembly of claim 1 , wherein the locking portion comprises an additional radially extending slot that extends into a surface of the central bore of the locking portion and is located directly across the central bore of the locking portion in relation to the radially extending slot.

7. The coaxial locking collar assembly of claim 6 , wherein the additional radially extending slot terminates with a stress-relieving rounded shape.

Assignees

• Corning Inc

Inventors

• Anderson James Gary
• Boratav Olus Naili
• Peng Gaozhu
• Regula Adam Scott
• Robinson Alexander Lamar

Classifications

• C03B17/068 Primary

  Means for providing the drawing force, e.g. traction or draw rollers · CPC title

• C03B17/064 Primary

  by the overflow downdraw fusion process; Isopipes therefor · CPC title