Smoking article for use with an internal heating element

Patent metadata

Field	Value
Publication number	US-12201141-B2
Application number	US-202217570940-A
Country	US
Kind code	B2
Filing date	Jan 7, 2022
Priority date	Jun 21, 2012
Publication date	Jan 21, 2025
Grant date	Jan 21, 2025

Abstract

A smoking article for an aerosol-generating device is provided, including: an aerosol-forming substrate disposed at an extreme upstream end of the article; and a support element disposed immediately downstream of the substrate, the substrate including a gathered crimped sheet of homogenised tobacco material having a plurality of substantially parallel ridges or corrugations extending along or parallel to a longitudinal axis of the article, the tobacco material being penetrable by a heating element of the device having a diameter of between 40 percent and 70 percent of a diameter of the substrate without bending of the article by more than 7 degrees relative to the axis and without tearing or ripping of an outer wrapper of the article, and the support element abuts the substrate and is configured to resist downstream movement of the substrate during insertion of the heating element into the substrate.

First claim

The invention claimed is:

1. A smoking article for an aerosol-generating device, the smoking article comprising:
an aerosol-forming substrate disposed at an extreme upstream end of the smoking article; and
a support element disposed immediately downstream of the aerosol-forming substrate,
wherein the aerosol-forming substrate comprises a gathered crimped sheet of homogenised tobacco material having a plurality of substantially parallel ridges or corrugations, the substantially parallel ridges or corrugations extending along or parallel to a longitudinal axis of the smoking article, the tobacco material thereby being configured to be penetrable by a heating element of the aerosol-generating device having a diameter of between 40 percent and 70 percent of a diameter of the aerosol-forming substrate without bending of the smoking article by more than 7 degrees relative to the longitudinal axis of the smoking article and without tearing or ripping of an outer wrapper of the smoking article, and
wherein the support element abuts the aerosol-forming substrate, the support element being configured to resist downstream movement of the aerosol-forming substrate during insertion of the heating element of the aerosol-generating device into the aerosol-forming substrate.

2. The smoking article according to claim 1 , wherein the support element is further configured to resist a penetration force of at least 2.5 N during insertion of the heating element of the aerosol-generating device into the aerosol-forming substrate.

3. The smoking article according to claim 1 , wherein the support element is further configured to resist a penetration force of at least 4 N during insertion of the heating element of the aerosol-generating device into the aerosol-forming substrate.

4. The smoking article according to claim 1 , wherein the support element comprises a hollow tubular element.

5. The smoking article according to claim 4 , wherein an internal diameter of the hollow tubular element is between 35 percent and 55 percent of an external diameter of the hollow tubular element.

6. The smoking article according to claim 4 , wherein the support element further comprises a hollow cellulose acetate tube.

7. The smoking article according to claim 1 , wherein the support element is resistant to exposure to a temperature of at least 150° C. for a period at least 6 minutes.

8. The smoking article according to claim 1 , further comprising an aerosol-cooling element disposed downstream of the support element.

9. The smoking article according to claim 8 , wherein the aerosol-cooling element is disposed immediately downstream of the support element and abuts the support element.

10. The smoking article according to claim 8 , wherein the aerosol-cooling element comprises a gathered sheet of biodegradable polymeric material.

11. The smoking article according to claim 1 , further comprising a filter disposed at an extreme downstream end of the smoking article.

Assignees

• Philip Morris Products Sa

Inventors

• Mitrev Pande
• Badertscher Thomas

Classifications

• A24F40/46 Primary

  Shape or structure of electric heating means · CPC title

• A24F40/20

  Devices using solid inhalable precursors · CPC title

• A24F1/02

  with arrangements for cleaning or cooling the smoke (hookahs A24F1/30) · CPC title

• A24F40/42

  Cartridges or containers for inhalable precursors · CPC title

• A61M15/06 Primary

  Inhaling appliances shaped like cigars, cigarettes or pipes · CPC title