US 12,342,867 B2
Split airflow system for an electrically heated smoking system and method for guiding an airflow inside an electrically heated smoking system
Eric Force, Bevaix (CH); Oleg Mironov, Neuchatel (CH); Ihar Nikolaevich Zinovik, Peseux (CH); and Keethan Dasnavis Fernando, Neuchatel (CH)
Assigned to Philip Morris Products S.A., Neuchatel (CH)
Filed by Philip Morris Products S.A., Neuchatel (CH)
Filed on Sep. 26, 2023, as Appl. No. 18/474,978.
Application 18/474,978 is a continuation of application No. 17/245,683, filed on Apr. 30, 2021, granted, now 11,805,817.
Application 17/245,683 is a continuation of application No. 16/877,464, filed on May 18, 2020, granted, now 11,006,676, issued on May 18, 2021.
Application 16/877,464 is a continuation of application No. 15/526,926, granted, now 11,241,039, issued on Feb. 8, 2022, previously published as PCT/EP2015/079681, filed on Dec. 15, 2015.
Claims priority of application No. 14197849 (EP), filed on Dec. 15, 2014.
Prior Publication US 2024/0023618 A1, Jan. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A24F 40/46 (2020.01); A24F 40/10 (2020.01); A24F 40/40 (2020.01); A24F 40/485 (2020.01); A61M 11/04 (2006.01); A61M 15/00 (2006.01); A61M 15/06 (2006.01)
CPC A24F 40/46 (2020.01) [A24F 40/40 (2020.01); A24F 40/485 (2020.01); A61M 11/042 (2014.02); A61M 15/008 (2014.02); A61M 15/06 (2013.01); A24F 40/10 (2020.01); A61M 2205/3331 (2013.01); A61M 2205/3653 (2013.01); A61M 2205/8206 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A split airflow system for an electrically heatable smoking system for generating aerosol, the split airflow system having a downstream end, the split airflow system comprising:
a first channel defining a first flow route; and
a second channel defining a second flow route,
wherein the first flow route directs ambient air from outside the split airflow system to the downstream end of the split airflow system,
wherein the second flow route directs ambient air from outside the split airflow system towards a substantially flat, fluid-permeable heating element before conveying the ambient air to the downstream end, and
wherein the first channel and the second channel define a total volume of ambient air passing through the split airflow system and the first channel provides at least 50 percent of the total volume of ambient air passing through the split airflow system.