Smoking article comprising a friction ignitable combustible carbonaceous heat source

Patent metadata

Field	Value
Publication number	US-10258083-B2
Application number	US-201515525957-A
Country	US
Kind code	B2
Filing date	Nov 23, 2015
Priority date	Nov 21, 2014
Publication date	Apr 16, 2019
Grant date	Apr 16, 2019

Abstract

A smoking article is provided, including a combustible carbonaceous heat source having opposed front and rear end faces; an aerosol-forming substrate downstream of the rear end face of the combustible carbonaceous heat source; an ignitable composition provided on at least a portion of the front end face of the combustible carbonaceous heat source; and one or more airflow pathways along configured to allow air to be drawn through the smoking article for inhalation, the ignitable composition being configured to be ignited by striking the front end face on a frictional surface, and being isolated from the one or more airflow pathways such that air drawn along the one or more airflow pathways does not directly contact the ignitable composition.

First claim

The invention claimed is:

1. A smoking article, comprising:
a combustible carbonaceous heat source having opposed front and rear end faces;
an aerosol-forming substrate downstream of the rear end face of the combustible carbonaceous heat source;
an ignitable composition provided on at least a portion of the front end face of the combustible carbonaceous heat source; and
one or more airflow pathways configured to allow air to be drawn through the smoking article for inhalation,
wherein the ignitable composition is configured to be ignited by striking the front end face of the combustible carbonaceous heat source on a frictional surface, and
wherein the ignitable composition is isolated from the one or more airflow pathways such that air drawn along the one or more airflow pathways does not directly contact the ignitable composition.

2. The smoking article according to claim 1 , wherein the ignitable composition is in direct contact with the combustible carbonaceous heat source.

3. The smoking article according to claim 1 , wherein the ignitable composition is provided on only a portion of the combustible carbonaceous heat source.

4. The smoking article according to claim 1 , wherein the ignitable composition is provided on only a portion of the front end face of the combustible carbonaceous heat source.

5. The smoking article according to claim 4 , wherein the ignitable composition is provided on only a central portion of the front end face of the combustible carbonaceous heat source.

6. The smoking article according to claim 1 , wherein the ignitable composition is only provided on the front end face of the combustible carbonaceous heat source.

7. The smoking article according to claim 1 , wherein the ignitable composition is configured to be ignited by striking the front end face of the combustible carbonaceous heat source on a cooperating striking surface.

8. The smoking article according to claim 7 , wherein the cooperating striking surface comprises red phosphorous.

9. The smoking article according to claim 1 , further comprising a cap configured to at least partially cover the front end face of the combustible carbonaceous heat source, wherein the cap being removable and configured to expose the front end face of the combustible carbonaceous heat source.

10. The smoking article according to claim 1 , wherein the combustible carbonaceous heat source is a blind combustible carbonaceous heat source.

11. The smoking article according to claim 1 , wherein the combustible carbonaceous heat source comprises an ignition aid.

12. The smoking article according to claim 11 , wherein the ignition aid is an oxidizing agent.

13. The smoking article according to claim 1 , further comprising one or more first air inlets disposed around the periphery of the aerosol-forming substrate.

14. The smoking article according to claim 1 , further comprising a non-combustible substantially air impermeable barrier between the rear end face of the combustible carbonaceous heat source and the aerosol-forming substrate.

15. A container of smoking articles, comprising:
a plurality of smoking articles according to claim 1 ; and
a cooperating striking surface,
wherein the ignitable composition is provided on at least a portion of the front end face of the combustible carbonaceous heat source of each of the plurality of smoking articles is configured to be ignited by striking the front end face of the combustible carbonaceous heat source on a cooperating striking surface.

Assignees

• Philip Morris Products Sa

Inventors

• Batista Rui Nuno

Classifications

• B65D85/109

  Lighting means, e.g. matches or lighters · CPC title

• A24D1/08 Primary

  with lighting means · CPC title

• F23Q1/02

  using friction or shock effects · CPC title

• A24F47/006

  Human Necessities · mapped topic

• A24F47/004 Primary

  Human Necessities · mapped topic