US 11,981,596 B2
Method and apparatus for reclaiming gas in a fiber draw furnace
Nikolaos Pantelis Kladias, Horseheads, NY (US); Yunfei Shao, Beijing (CN); Xiaoyong Wang, Shanghai (CN); and Chunfeng Zhou, Painted Post, NY (US)
Assigned to CORNING INCORPORATED, Corning, NY (US)
Filed by Corning Incorporated, Corning, NY (US)
Filed on Dec. 20, 2021, as Appl. No. 17/556,282.
Application 17/556,282 is a division of application No. 16/299,494, filed on Mar. 12, 2019, granted, now 11,236,007.
Claims priority of application No. 201810205268.7 (CN), filed on Mar. 13, 2018.
Prior Publication US 2022/0112117 A1, Apr. 14, 2022
Int. Cl. C03B 37/029 (2006.01); C03B 37/03 (2006.01)
CPC C03B 37/029 (2013.01) [C03B 37/032 (2013.01); C03B 2205/10 (2013.01); C03B 2205/61 (2013.01); C03B 2205/83 (2013.01); C03B 2205/91 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of producing an optical fiber, comprising the steps of:
flowing a first gas into an optical fiber draw furnace;
passing the first gas through a heated section configured to contain and heat a glass source from which the optical fiber is drawn;
passing the first gas into a reclaim cylinder;
removing a portion of the first gas through at least one reclaim port coupled with the reclaim cylinder, wherein the at least one reclaim port is tangentially oriented to an exterior surface of a housing of the reclaim cylinder such that a vortex of the first gas is generated in the reclaim cylinder; and
flowing a second gas from a gas screen at a rate configured to substantially recover a pressure drop associated with removing the portion of the first gas.