US 12,366,109 B2
Method of providing edge seal for vacuum insulated glass unit
Annette Johncock Krisko, Prarie du Sac, WI (US); Peter Sønderkær, Hørsholm (DK); Karsten Hansgaard Nielsen, Hørsholm (DK); Henrik Aslak Jensen, Hørsholm (DK); and Timothy Alan Dennis, Hørsholm (DK)
Assigned to VKR HOLDING A/S, Hørsholm (DK)
Appl. No. 17/290,820
Filed by VKR Holding A/S, Hørsholm (DK)
PCT Filed Nov. 5, 2019, PCT No. PCT/DK2019/050333
§ 371(c)(1), (2) Date May 3, 2021,
PCT Pub. No. WO2020/094198, PCT Pub. Date May 14, 2020.
Claims priority of application No. 201870733 (DK), filed on Nov. 7, 2018.
Prior Publication US 2021/0371333 A1, Dec. 2, 2021
Int. Cl. E06B 3/673 (2006.01); B05C 5/02 (2006.01); B05C 11/10 (2006.01); B32B 17/10 (2006.01); B32B 37/12 (2006.01); E06B 3/66 (2006.01)
CPC E06B 3/673 (2013.01) [B05C 5/0204 (2013.01); B05C 11/1002 (2013.01); B32B 17/10302 (2013.01); B32B 37/1284 (2013.01); E06B 3/6612 (2013.01); E06B 3/67334 (2013.01); B05C 11/1018 (2013.01); B05C 11/1023 (2013.01); B32B 17/10972 (2013.01); B32B 2307/304 (2013.01); B32B 2307/412 (2013.01); E06B 3/67326 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of manufacturing a vacuum insulated glass (VIG) unit including first and second tempered glass sheets, wherein the method comprises the steps of:
applying a seal material on a glass sheet surface of at least one of the first and second tempered glass sheets comprising the steps of:
obtaining by means of a sensor system surface variation data of the glass sheet surfaces of the first and second tempered glass sheets and storing said data for a later use,
applying the seal material for an edge seal at the glass sheet surface by a nozzle having a nozzle opening for dispensing said seal material,
by means of a control system, controlling an adjustment system influencing the applying of said seal material by said nozzle based on said obtained surface variation data of both the first and second tempered glass sheets;
providing support structures on a major surface of one of the first and second tempered glass sheets,
pairing the one of the first and second tempered glass sheets provided with said applied seal material with the other of the first and second tempered glass sheets so that the first and second tempered glass sheets are placed in parallel with interior major surfaces of the first and second tempered glass sheets facing each other and providing a gap therein between, where said support structures are placed in said gap, and
evacuating and sealing said gap so as to provide said vacuum insulated glass unit;
wherein said obtaining the surface variation data of both the first and second tempered glass sheets occurs prior to said applying the seal material;
wherein, in response to said obtained surface variation data of both the first and second tempered glass sheets, said adjustment system is configured to control the amount of seal material applied per length unit at said glass sheet surface by said nozzle and is configured for varying a displacement speed of the nozzle relative to the glass sheet surface while said applying the seal material.