US 12,219,673 B2
Fluid permeable heater assembly for aerosol-generating systems and flat electrically conductive filament arrangement for fluid permeable heater assemblies
Oleg Mironov, Cudrefin (CH); and Ihar Nikolaevich Zinovik, Peseux (CH)
Assigned to Altria Client Services LLC, Richmond, VA (US)
Filed by Altria Client Services LLC, Richmond, VA (US)
Filed on May 31, 2023, as Appl. No. 18/326,460.
Application 18/326,460 is a continuation of application No. 16/851,761, filed on Apr. 17, 2020, granted, now 11,737,175.
Application 16/851,761 is a continuation of application No. 15/609,223, filed on May 31, 2017, granted, now 10,667,557, issued on Jun. 2, 2020.
Application 15/609,223 is a continuation of application No. PCT/EP2017/062251, filed on May 22, 2017.
Claims priority of application No. 16172195 (EP), filed on May 31, 2016.
Prior Publication US 2023/0309198 A1, Sep. 28, 2023
Int. Cl. H05B 3/34 (2006.01); A24F 40/10 (2020.01); A24F 40/40 (2020.01); A24F 40/44 (2020.01); A24F 40/46 (2020.01); H05B 3/26 (2006.01); H05B 3/44 (2006.01)
CPC H05B 3/34 (2013.01) [A24F 40/40 (2020.01); A24F 40/44 (2020.01); A24F 40/46 (2020.01); H05B 3/26 (2013.01); H05B 3/44 (2013.01); A24F 40/10 (2020.01); H05B 2203/021 (2013.01); H05B 2203/022 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An aerosol-generating system comprising:
a fluid permeable heater assembly including,
an electrically conductive flat filament arrangement including,
a flat filament including,
a center portion,
two side portions, the two side portions on opposite sides of the center portion, the center portion defining a heating region and the two side portions defining electrical contact regions, and
a transition portion between each of the two side portions and the center portion, each transition portion including,
 a plurality of openings defining an open area of the transition portion, and distribution of the open area of the transition portion across the transition portion varies between the side portion and the center portion.