Smoking article comprising an airflow directing element

    公开(公告)号:US09918494B2

    公开(公告)日:2018-03-20

    申请号:US14653631

    申请日:2013-12-20

    CPC classification number: A24F47/006

    Abstract: A smoking article is provided, having a mouth end and a distal end, including a heat source; an aerosol-forming substrate; an airflow directing element including an air-permeable segment downstream of the substrate and defining an airflow pathway; and at least one air inlet for drawing air into the segment, wherein the pathway includes a first portion extending from the inlet towards the substrate and a second portion extending from the substrate towards the mouth end, wherein the first portion is defined by a low resistance-to-draw portion of the segment that extends from proximate to the inlet to an upstream end of the segment, and the segment further includes a high resistance-to-draw portion that extends from proximate to the inlet to a downstream end of the segment, and the ratio of the resistance-to-draw of the high portion to the low portion is higher than 1:1 and lower than 50:1.

    Electrically operated aerosol generating system with thermal spreading wrap

    公开(公告)号:US10856569B2

    公开(公告)日:2020-12-08

    申请号:US16724002

    申请日:2019-12-20

    Abstract: An electrically operated aerosol-generating system is provided, including an aerosol-generating device including an electrically powered heating element; and a heated aerosol-generating article including an aerosol-forming substrate radially encircled by a sheet of thermally-conductive material, which is a thermally conducting flame barrier configured to spread heat and to mitigate against a risk of igniting the substrate by application of a flame to the article, and a plurality of elements, assembled together with the substrate within a wrapper to form a rod having a mouth end and a distal end upstream from the mouth end, the substrate being disposed at the distal end of the rod, the elements including a spacer element disposed within the rod downstream of the substrate and a mouthpiece element extending upstream from the mouth end of the rod, the device being configured to receive the article and the heating element is configured to heat the substrate of the article.

    Insulated heat source
    16.
    发明授权

    公开(公告)号:US10779569B2

    公开(公告)日:2020-09-22

    申请号:US14424731

    申请日:2013-08-29

    Abstract: There is provided a heat source for a smoking article, including an upstream end and an opposed downstream end, and further including a combustible carbonaceous core and an integral, non-combustible, thermally insulating, peripheral layer. The core extends from the upstream end of the heat source the downstream end of the heat source. The peripheral layer extends from the upstream end of the heat source only part way along the length of the heat source and circumscribes an upstream portion of the core.

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