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公开(公告)号：WO2021150367A1
公开(公告)日：2021-07-29
申请号：PCT/US2021/012228
申请日：2021-01-06
Applicant: CORNING INCORPORATED
IPC: C03B37/027 , C03B37/029 , C03B2205/62 , C03B2205/63 , C03B2205/69 , C03B2205/70 , C03B2205/74 , C03B2205/81 , C03B2205/83 , C03B37/02736 , C03B37/032
Abstract: An optical fiber draw system and method of operating thereof. The method includes positioning a downfeed handle for supporting an optical fiber preform within a furnace such that the downfeed handle is movable within the furnace. The method further includes operating one or more heating elements to thermally heat at least a portion of an upper muffle extension disposed within the furnace, the one or more heating elements being moveable with the downfeed handle.
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公开(公告)号：WO2021126533A1
公开(公告)日：2021-06-24
申请号：PCT/US2020/062964
申请日：2020-12-03
Applicant: CORNING INCORPORATED
Inventor： DUNWOODY, Steven Akin , KLADIAS, Nikolaos Pantelis , MOORE, Robert Clark , PACE, Jason Roy , THOMAS, Christopher Scott , WAKEFIELD, Bryan William , ZHOU, Chunfeng
IPC: C03B37/027 , C03B37/029 , C03B2205/42 , C03B2205/50 , C03B2205/55 , C03B2205/57 , C03B2205/61 , C03B2205/83 , C03B37/02718
Abstract: A system for processing optical fiber includes a draw furnace, a fiber conveyance pathway extending between an upstream end positioned at the draw furnace and a downstream end positioned opposite the upstream end, where optical fiber is conveyed along the fiber conveyance pathway from the upstream end to the downstream end in a fiber conveyance direction, a muffle in communication with the draw furnace and positioned downstream of the draw furnace, a second cooling device annularly surrounding the fiber conveyance pathway downstream from the draw furnace, the second cooling device including one or more second cooling device heating elements and a first cooling device positioned between the draw furnace and the second cooling device, wherein the first cooling device directs a fluid to contact the optical fiber.
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