US 12,219,993 B2
Closure body and cartridge
Xiaoshuo Chen, Guangdong (CN); Su Lu, Guangdong (CN); Quanyi Liu, Guangdong (CN); Zhian He, Guangdong (CN); and Chongwei Wang, Guangdong (CN)
Assigned to SHENZHEN EVERWIN PRECISION TECHNOLOGY CO., LTD., Guangdong (CN)
Filed by SHENZHEN EVERWIN PRECISION TECHNOLOGY CO., LTD., Guangdong (CN)
Filed on Jun. 29, 2021, as Appl. No. 17/362,167.
Application 17/362,167 is a continuation of application No. PCT/CN2020/087467, filed on Apr. 28, 2020.
Claims priority of application No. 201910618726.4 (CN), filed on Jul. 10, 2019; application No. 201910618729.8 (CN), filed on Jul. 10, 2019; application No. 201910618874.6 (CN), filed on Jul. 10, 2019; and application No. 201910618894.3 (CN), filed on Jul. 10, 2019.
Prior Publication US 2021/0321670 A1, Oct. 21, 2021
Int. Cl. A24F 40/42 (2020.01); A24F 40/10 (2020.01); A24F 40/485 (2020.01); A24F 40/46 (2020.01)
CPC A24F 40/42 (2020.01) [A24F 40/10 (2020.01); A24F 40/485 (2020.01); A24F 40/46 (2020.01)] 15 Claims
OG exemplary drawing
 
1. A closure body, comprising a closure member and a sealing member formed on the closure member; the closure member comprising a closure end, an accommodation end extending downward from the closure end, at least one e-liquid passage running through the closure end and extending to the accommodation end, and an air passage separated from the at least one e-liquid passage; the air passage comprising a connection air passage running through a top of the closure end, a longitudinal air passage longitudinally running through the closure end and communicating with the connection air passage, and an outer-side air passage extending from an outer edge of the longitudinal air passage to the accommodation end, wherein a notch is formed in middle of the accommodation end; the sealing member comprises a first sealing portion formed at the accommodation end, and a third sealing portion formed at the closure end; the first sealing portion comprises an atomizing core installation cavity formed in the notch, and a first sealing ring formed around outer peripheries of the accommodation end and the notch; the third sealing portion comprises a second sealing ring formed around an outer periphery of the closure end, and a third sealing ring formed at an inner side of the connection air passage; and the second sealing ring and the first sealing ring provide a double-sealing structure.