US 12,202,760 B2
Glass fiber nozzle structure, bushing and production device
Guorong Cao, Tongxiang (CN); Weirong Ma, Tongxiang (CN); Zhangbin Zhu, Tongxiang (CN); Qixin Zhu, Tongxiang (CN); Xuming Shen, Tongxiang (CN); and Haixing Wang, Tongxiang (CN)
Assigned to JUSHI GROUP CO., LTD., Tongxiang (CN)
Appl. No. 17/760,334
Filed by JUSHI GROUP CO., LTD., Tongxiang (CN)
PCT Filed Dec. 10, 2021, PCT No. PCT/CN2021/137163
§ 371(c)(1), (2) Date Aug. 8, 2022,
PCT Pub. No. WO2023/092699, PCT Pub. Date Jun. 1, 2023.
Claims priority of application No. 202111441759.X (CN), filed on Nov. 29, 2021.
Prior Publication US 2023/0250008 A1, Aug. 10, 2023
Int. Cl. C03B 37/083 (2006.01); C03C 25/20 (2006.01)
CPC C03B 37/083 (2013.01) [C03C 25/20 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A glass fiber nozzle structure, comprising a nozzle body and a hole provided on the nozzle body, wherein
the hole comprises an upper hole portion and a lower hole portion in communication with the upper hole portion and located below the upper hole portion, the lower hole portion has an elongated cross-section, a projection of the lower hole portion is located within a projection of the upper hole portion in a projection on a plane perpendicular to an axis line of the lower hole portion, and a length and a width of the lower hole portion have a ratio of 5:1 to 12:1;
a cross-sectional area of the upper hole portion is tapered from top to bottom; and
a volume of the upper hole portion is 2 to 5 times a volume of the lower hole portion.