公开(公告)号：US20220315473A1

公开(公告)日：2022-10-06

申请号：US17706976

申请日：2022-03-29

Applicant: CORNING INCORPORATED

Inventor： Erling Richard Anderson ,  Tammy Michelle Hoffmann ,  Nikolaos Pantelis Kladias ,  Kenneth William Roberts ,  Eric Wade Thornton ,  Chunfeng Zhou

IPC: C03B37/029 ,  C03B37/025

Abstract: An optical fiber draw furnace system including a muffle, a downfeed handle, and a downfeed handle extension portion. The downfeed handle is moveably disposed within an inner cavity of the muffle. The downfeed handle extension portion is connected to the downfeed handle and moveably disposed within the inner cavity of the muffle. Furthermore, the downfeed handle extension portion forms a first gap between an outer surface of the downfeed handle extension portion and an inner surface of the muffle, the first gap having a length in a range of about 0.001 m to about 0.2 m.

公开(公告)号：US20230312390A1

公开(公告)日：2023-10-05

申请号：US18207376

申请日：2023-06-08

Applicant: CORNING INCORPORATED

Inventor： Raymond David Groh ,  Joseph Leroy Morse ,  Bradley Kent Shepard ,  Ian Anthony Smith ,  Eric Wade Thornton

IPC: C03B37/012 ,  F27B5/00 ,  F27B5/13

CPC classification number: C03B37/01257 ,  C03B37/0124 ,  C03B37/0126 ,  F27B5/00 ,  F27B5/13

Abstract: A system and methods are described herein for preheating a preform in a preheater furnace and then transferring the preheated preform to a consolidation furnace for chemical treatment and sintering the preform into a clear glass which can be drawn into optical fiber. In addition, the preheater furnace is described herein which is configured to heat the preform per a predetermined heat-profile until the preform is uniformly heated to a temperature above 1000° C.

公开(公告)号：US11713272B2

公开(公告)日：2023-08-01

申请号：US16799185

申请日：2020-02-24

Applicant: CORNING INCORPORATED

Inventor： Raymond David Groh ,  Joseph Leroy Morse ,  Bradley Kent Shepard ,  Ian Anthony Smith ,  Eric Wade Thornton

IPC: C03B37/012 ,  F27B5/00 ,  F27B5/13

CPC classification number: C03B37/01257 ,  C03B37/0124 ,  C03B37/0126 ,  F27B5/00 ,  F27B5/13

Abstract: A system and methods are described herein for preheating a preform in a preheater furnace and then transferring the preheated preform to a consolidation furnace for chemical treatment and sintering the preform into a clear glass which can be drawn into optical fiber. In addition, the preheater furnace is described herein which is configured to heat the preform per a predetermined heat-profile until the preform is uniformly heated to a temperature above 1000° C.

公开(公告)号：US20200283329A1

公开(公告)日：2020-09-10

申请号：US16799185

申请日：2020-02-24

Applicant: CORNING INCORPORATED

Inventor： Raymond David Groh ,  Joseph Leroy Morse ,  Bradley Kent Shepard ,  Ian Anthony Smith ,  Eric Wade Thornton

IPC: C03B37/012

Abstract: A system and methods are described herein for preheating a preform in a preheater furnace and then transferring the preheated preform to a consolidation furnace for chemical treatment and sintering the preform into a clear glass which can be drawn into optical fiber. In addition, the preheater furnace is described herein which is configured to heat the preform per a predetermined heat-profile until the preform is uniformly heated to a temperature above 1000° C.