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：US20160257612A1

公开(公告)日：2016-09-08

申请号：US15049359

申请日：2016-02-22

Applicant: Corning Incorporated

Inventor： Liam Ruan de Paor ,  Nicolas LeBlond ,  Richard Curwood Peterson ,  Kenneth William Roberts ,  Li Yang

IPC: C03C25/10

CPC classification number: C03C25/10 ,  C03B19/066 ,  C03B19/1407 ,  C03B19/1469 ,  C03B19/1492 ,  C03B37/01282 ,  C03B37/01406 ,  C03B37/01466 ,  C03B37/01493 ,  Y02P40/57

Abstract: A method for forming a porous soot body that includes depositing soot on a release coating supported by a bait substrate. Characteristics of the release coating control the strength of attachment of the porous soot body to the bait substrate. Weak attachment of the porous soot body to the bait substrate facilitates separation of the porous soot body from the bait substrate without damaging the porous soot body. The release coating may be formed from a brittle material or a material that oxidizes or otherwise depletes during deposition of the soot that forms the porous soot body. The release coating may include carbon. The separated porous soot body may be consolidated to form a core cane or may function as a sleeve (porous cladding) in a cane-in-soot fiber preform manufacturing process.

Abstract translation: 一种形成多孔烟灰体的方法，其包括在由诱饵基底支撑的剥离涂层上沉积烟灰。 释放涂层的特征控制多孔烟炱体与诱饵基底的连接强度。 多孔烟炱体与诱饵底物的弱附着有利于将多孔烟炱体与诱饵基质分离，而不损害多孔烟炱体。 剥离涂层可以由脆性材料或在形成多孔烟灰体的烟灰沉积期间氧化或以其他方式消耗的材料形成。 脱模涂层可以包括碳。 分离的多孔烟灰体可以被固结以形成芯棒，或者可以在烟囱纤维预制棒制造工艺中用作套筒（多孔包层）。

公开(公告)号：US10591674B2

公开(公告)日：2020-03-17

申请号：US15657329

申请日：2017-07-24

Applicant: Corning Incorporated

Inventor： Erling Richard Anderson ,  Kenneth William Roberts

IPC: C03B37/027 ,  C03B37/014 ,  G02B6/28 ,  G02B6/255 ,  G02B6/40 ,  H05B3/42 ,  H05B3/62

Abstract: A system for positioning an optical preform in a furnace is provided that includes an upper muffle and a downfeed handle assembly with a tube defining a first end and a second end, the second end extending into the upper muffle. A handle is disposed within the tube. A second end of the handle extends into the upper muffle and a seal assembly is positioned around both the tube and the handle. The first end of the handle extends through the seal assembly and a drive assembly is coupled with the downfeed handle.

公开(公告)号：US20200166706A1

公开(公告)日：2020-05-28

申请号：US16777226

申请日：2020-01-30

Applicant: Corning Incorporated

Inventor： Erling Richard Anderson ,  Kenneth William Roberts

IPC: G02B6/28 ,  H05B3/62 ,  H05B3/42 ,  G02B6/40 ,  G02B6/255 ,  C03B37/014 ,  C03B37/027

Abstract: A system for positioning an optical preform in a furnace is provided that includes an upper muffle and a downfeed handle assembly with a tube defining a first end and a second end, the second end extending into the upper muffle. A handle is disposed within the tube. A second end of the handle extends into the upper muffle and a seal assembly is positioned around both the tube and the handle. The first end of the handle extends through the seal assembly and a drive assembly is coupled with the downfeed handle.

公开(公告)号：US11513293B2

公开(公告)日：2022-11-29

申请号：US16777226

申请日：2020-01-30

Applicant: Corning Incorporated

Inventor： Erling Richard Anderson ,  Kenneth William Roberts

IPC: C03B27/04 ,  C03B29/08 ,  G05B19/045 ,  C03B25/00 ,  C03B37/027 ,  C03B37/014 ,  G02B6/28 ,  C03B37/029 ,  G02B6/255 ,  G02B6/40 ,  H05B3/42 ,  H05B3/62

Abstract: A system for positioning an optical preform in a furnace is provided that includes an upper muffle and a downfeed handle assembly with a tube defining a first end and a second end, the second end extending into the upper muffle. A handle is disposed within the tube. A second end of the handle extends into the upper muffle and a seal assembly is positioned around both the tube and the handle. The first end of the handle extends through the seal assembly and a drive assembly is coupled with the downfeed handle.

公开(公告)号：US20180031767A1

公开(公告)日：2018-02-01

申请号：US15657329

申请日：2017-07-24

Applicant: Corning Incorporated

Inventor： Erling Richard Anderson ,  Kenneth William Roberts

IPC: G02B6/28 ,  H05B3/42 ,  G02B6/40 ,  G02B6/255 ,  H05B3/62

Abstract: A system for positioning an optical preform in a furnace is provided that includes an upper muffle and a downfeed handle assembly with a tube defining a first end and a second end, the second end extending into the upper muffle. A handle is disposed within the tube. A second end of the handle extends into the upper muffle and a seal assembly is positioned around both the tube and the handle. The first end of the handle extends through the seal assembly and a drive assembly is coupled with the downfeed handle.