US 12,167,750 B2
Ultrasonic-based aerosol generation device
Chul Ho Jang, Daejeon (KR); Gyoung Min Go, Daejeon (KR); Hyung Jin Bae, Daejeon (KR); Jang Won Seo, Daejeon (KR); Min Seok Jeong, Daejeon (KR); Jong Seong Jeong, Daejeon (KR); and Jin Chul Jung, Daejeon (KR)
Assigned to KT&G CORPORATION, Daejeon (KR)
Appl. No. 17/430,935
Filed by KT&G CORPORATION, Daejeon (KR)
PCT Filed Mar. 8, 2021, PCT No. PCT/KR2021/002807
§ 371(c)(1), (2) Date Aug. 13, 2021,
PCT Pub. No. WO2021/215650, PCT Pub. Date Oct. 28, 2021.
Claims priority of application No. 10-2020-0047186 (KR), filed on Apr. 20, 2020.
Prior Publication US 2023/0320416 A1, Oct. 12, 2023
Int. Cl. A24F 40/05 (2020.01); A24F 40/10 (2020.01); A24F 40/42 (2020.01); A24F 40/44 (2020.01); A24F 40/46 (2020.01); A24F 40/48 (2020.01); A24F 40/50 (2020.01); B05B 17/06 (2006.01)
CPC A24F 40/05 (2020.01) [A24F 40/10 (2020.01); A24F 40/42 (2020.01); A24F 40/44 (2020.01); A24F 40/46 (2020.01); A24F 40/48 (2020.01); A24F 40/50 (2020.01); B05B 17/0684 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An ultrasonic-based aerosol generation device comprising:
a liquid reservoir configured to store an aerosol-forming substrate in a liquid state;
a wick configured to absorb the stored aerosol-forming substrate;
an ultrasonic vibrator configured to vaporize the absorbed aerosol-forming substrate through ultrasonic waves to generate an aerosol; and
a controller configured to control the ultrasonic vibrator,
wherein at least a portion of the wick and at least a portion of the ultrasonic vibrator have a flat portion,
wherein the liquid reservoir and the wick constitute at least a portion of a replaceable cartridge,
wherein the ultrasonic vibrator and the controller constitute at least a portion of a control main body which is coupled to the cartridge,
wherein the cartridge further comprises an elastic body configured to elastically support the wick, and a sealing member that seals an open lower end portion of the cartridge such that the elastic body is compressed by the sealing member,
wherein, as the sealing member is removed, the elastic body is expanded and the flat portion of the wick is moved toward the ultrasonic vibrator, and
wherein the elastic body is above the wick such that the wick is between the elastic body and the sealing member.