US 11,653,696 B2
Leak-proof device and electronic cigarette comprising the same
Tuanfang Liu, Shenzhen (CN)
Filed by Tuanfang Liu, Shenzhen (CN)
Filed on Sep. 8, 2020, as Appl. No. 17/15,031.
Claims priority of application No. 201922292040.9 (CN), filed on Dec. 18, 2019.
Prior Publication US 2021/0186098 A1, Jun. 24, 2021
Int. Cl. A24F 40/10 (2020.01); A24F 40/42 (2020.01); A24F 40/485 (2020.01)
CPC A24F 40/10 (2020.01) [A24F 40/42 (2020.01); A24F 40/485 (2020.01)] 4 Claims
OG exemplary drawing
 
1. A leak-proof device comprising a first seal ring, an upper cover, a base, a second seal ring, an insulation ring, a heating wire, a strip of cotton, and a seal pad; wherein:
the first seal ring is disposed on a top end of the upper cover to seal an e-liquid tank thereby isolating the e-liquid in the e-liquid tank;
the base comprises a first recess;
the second seal ring is disposed on the base;
the base is disposed on a bottom end of the e-liquid tank to seal the bottom end of the e-liquid tank;
the insulation ring comprises a second recess, and is disposed on a bottom of the base to collect e-liquid condensate;
the heating wire is nested in the strip of cotton to atomize absorbed e-liquid on the strip of cotton;
the upper cover is disposed on the strip of cotton;
the strip of cotton is disposed in the first recess of the base to absorb deposited e-liquid in the recess; and
the seal pad is disposed on a top part of the base to seal the e-liquid.