US 12,256,469 B2
Heat diffuser for an aerosol-generating system
Michel Thorens, Moudon (CH)
Assigned to Altria Client Services LLC, Richmond, VA (US)
Filed by Altria Client Services LLC, Richmond, VA (US)
Filed on Jan. 14, 2021, as Appl. No. 17/149,255.
Application 17/149,255 is a continuation of application No. 15/624,826, granted, now 10,918,135, previously published as PCT/EP2017/063056, filed on May 30, 2017.
Claims priority of application No. 16172294 (EP), filed on May 31, 2016.
Prior Publication US 2021/0127745 A1, May 6, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H05B 1/02 (2006.01); A24D 1/20 (2020.01); A24F 40/10 (2020.01); A24F 40/44 (2020.01); A24F 40/46 (2020.01); H05B 3/42 (2006.01)
CPC H05B 1/0227 (2013.01) [A24D 1/20 (2020.01); A24F 40/44 (2020.01); A24F 40/46 (2020.01); H05B 3/42 (2013.01); A24F 40/10 (2020.01); H05B 2203/021 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An aerosol-generating article comprising:
a heat diffuser including a non-combustible porous body configured to absorb heat from an electric heating element, the porous body being thermally conductive such that air drawn through the porous body is heated by the heat absorbed by the porous body, the heat diffuser being located at a distal end of an aerosol-generating article, the distal end being upstream from an outlet end of the aerosol-generating article; a liquid aerosol-forming substrate; and
a liquid retention medium entirely downstream of the heat diffuser and the electric heating element, the liquid retention medium configured to retain the liquid aerosol-forming substrate within the liquid retention medium,
the heat diffuser being configured to heat the liquid aerosol-forming substrate in the liquid retention medium to form an aerosol.