US 12,453,377 B2
Smoking substitute apparatus
Benjamin Illidge, Liverpool (GB); Benjamin Astbury, Liverpool (GB); Nikhil Aggarwal, Liverpool (GB); and Huanghai Lu, Liverpool (GB)
Assigned to Imperial Tobacco Limited, Bristol (GB)
Filed by Imperial Tobacco Limited, Bristol (GB)
Filed on Mar. 15, 2022, as Appl. No. 17/694,919.
Application 17/694,919 is a continuation of application No. PCT/EP2020/076304, filed on Sep. 21, 2020.
Claims priority of application No. 19198526 (EP), filed on Sep. 20, 2019; and application No. 19198551 (EP), filed on Sep. 20, 2019.
Prior Publication US 2022/0192268 A1, Jun. 23, 2022
Int. Cl. A24F 40/46 (2020.01); A24F 40/10 (2020.01); A24F 40/48 (2020.01); A24F 40/57 (2020.01)
CPC A24F 40/46 (2020.01) [A24F 40/10 (2020.01); A24F 40/48 (2020.01); A24F 40/57 (2020.01)] 12 Claims
OG exemplary drawing
 
1. A smoking substitute apparatus comprising:
an air inlet;
a vapor outlet; and
a vaporization chamber, the vaporization chamber including:
a first vaporizer inside the vaporization chamber, for vaporizing aerosol precursor; and
a second vaporizer inside the vaporization chamber and located downstream of the first vaporizer, for vaporizing aerosol precursor;
wherein the air inlet and the vapor outlet define a first airflow path therebetween, for a first airflow, the first airflow path extending through the smoking substitute apparatus, and wherein the vaporization chamber is located along and forms a part of the first airflow path such that the first airflow path impinges the first vaporizer and the second vaporizer;
wherein the smoking substitute apparatus includes a fixed bypass airflow path, for a bypass airflow, the fixed bypass airflow path bypassing the vaporization chamber and combining with the first airflow path downstream from the vaporization chamber; and
wherein the smoking substitute apparatus includes a main airflow path downstream of and communicating with the air inlet, the main airflow path being split into the first airflow path and the fixed bypass airflow path such that air in the first airflow enters the first airflow path and the fixed bypass airflow path.