US 11,920,404 B2
Apparatus for manufacturing vacuum glass
Sora Kim, Seoul (KR); Soyoon Kim, Seoul (KR); Yunsung Kim, Seoul (KR); and Eunsoo Yang, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 16/982,819
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Jan. 31, 2019, PCT No. PCT/KR2019/001398
§ 371(c)(1), (2) Date Sep. 21, 2020,
PCT Pub. No. WO2019/190043, PCT Pub. Date Oct. 3, 2019.
Claims priority of application No. 10-2018-0034483 (KR), filed on Mar. 26, 2018.
Prior Publication US 2021/0054684 A1, Feb. 25, 2021
Int. Cl. E06B 3/677 (2006.01); C03C 8/02 (2006.01); C03C 8/20 (2006.01)
CPC E06B 3/6775 (2013.01) [C03C 8/02 (2013.01); C03C 8/20 (2013.01); C03C 2204/00 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An apparatus for manufacturing vacuum insulation glass, the apparatus comprising:
an exhaust head disposed at a side of a glass assembly having an exhaust hole;
an exhaust pump fluidly connected to the exhaust head to exhaust an internal gas of the glass assembly to form a vacuum;
a cap frit disposed on the exhaust hole of the glass assembly;
an exhaust finishing frit provided at a bottom surface of the cap frit and including a frit formed of a glass material, the exhaust finishing frit including an exhaust passage through which the internal gas of the glass assembly is exhausted; and
a support plate provided under the exhaust head to press against the cap frit, the support plate being provided at a top of the cap frit,
wherein the support plate has a circular plate shape and includes a plate through part to communicate with the exhaust passage of the exhaust finishing frit, the plate through part being formed at a center of the circular plate shape and aligned in a center of the cap frit.