US 12,486,192 B2
Forming apparatus
Masanori Nakano, Tokyo (JP); Motoichi Iga, Tokyo (JP); Kohta Okamoto, Tokyo (JP); and Hiroki Ishibashi, Tokyo (JP)
Assigned to AGC Inc., Tokyo (JP)
Filed by AGC Inc., Tokyo (JP)
Filed on Dec. 12, 2022, as Appl. No. 18/064,386.
Application 18/064,386 is a continuation of application No. PCT/JP2021/023042, filed on Jun. 17, 2021.
Claims priority of application No. 2020-109936 (JP), filed on Jun. 25, 2020.
Prior Publication US 2023/0110501 A1, Apr. 13, 2023
Int. Cl. C03B 17/06 (2006.01)
CPC C03B 17/064 (2013.01) 14 Claims
OG exemplary drawing
 
1. A forming apparatus for forming a glass ribbon, comprising:
a body having a first end and a second end in an axial direction of the body and comprising a first protruding portion and a second protruding portion extending from the first end to the second end such that a channel is formed between the first protruding portion and the second protruding portion,
wherein the body has an inlet configured to supply a molten glass from the first end to the channel such that the molten glass flows within the channel from the first end toward the second end, and the channel of the body has a channel width in a direction perpendicular to the axial direction such that a portion of the channel width continuously decreases toward the second end and becomes 0 at the second end,
wherein the portion of the channel has a pointed shape toward the second end, and
wherein the pointed shape of the channel has curved lines symmetrical with respect to a channel axis dividing the channel width into two along the axial direction.