Smoking article with improved airflow

  • US 10,149,495 B2
  • Filed: 02/12/2013
  • Issued: 12/11/2018
  • Est. Priority Date: 02/13/2012
  • Status: Active Grant
First Claim
Patent Images

1. A smoking article having a mouth end and a distal end, the smoking article comprising:

  • a blind heat source;

    an aerosol-forming substrate downstream of the heat source;

    at least one air inlet downstream of the aerosol-forming substrate;

    an airflow pathway extending between the at least one air inlet and the mouth end of the smoking article, wherein the airflow pathway comprises a first portion extending longitudinally upstream from the at least one air inlet towards the aerosol-forming substrate, and a second portion extending longitudinally downstream from the first portion towards the mouth end of the smoking article; and

    an airflow directing element downstream of the aerosol-forming substrate, the airflow directing element defining the first portion of the airflow pathway and the second portion of the airflow pathway,wherein the airflow directing element comprises an open-ended, substantially air impermeable hollow body, andwherein at least a portion of a length of the open-ended, substantially air impermeable hollow body is circumscribed by an air permeable diffuser.

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