Aerosol-generating article with rigid hollow tip

Patent metadata

Field	Value
Publication number	US-10588347-B2
Application number	US-201415101443-A
Country	US
Kind code	B2
Filing date	Dec 4, 2014
Priority date	Dec 5, 2013
Publication date	Mar 17, 2020
Grant date	Mar 17, 2020

Abstract

A heated aerosol-generating article for use with an aerosol-generating device is provided, the heated aerosol-generating article including a plurality of components including an aerosol-forming substrate assembled within a wrapper to form a rod having a mouth end and a distal end upstream from the mouth end, in which a rigid hollow tube having an external diameter of between 5 mm and 15 mm and a length of between 5 mm and 15 mm is disposed upstream from the aerosol-forming substrate within the wrapper, the rigid hollow tube being substantially non-flammable and in which a pierceable film spans one end of the rigid hollow tube.

First claim

The invention claimed is:

1. A heated aerosol-generating article for an aerosol-generating device, the heated aerosol-generating article comprising:
a plurality of components including an aerosol-forming substrate assembled within a wrapper to form a rod having a mouth end and a distal end upstream from the mouth end;
a substantially non-flammable rigid hollow tube disposed upstream from the aerosol-forming substrate within the wrapper, said tube having an external diameter of between 5 mm and 15 mm and a length of between 5 mm and 15 mm; and
a pierceable film spanning one end of the substantially non-flammable rigid hollow tube and being configured to protect the aerosol-forming substrate from an applied flame, such that the heated aerosol-generating article has a lowered propensity for flame ignition due to a presence of the pierceable film and of the substantially non-flammable rigid hollow tube.

2. The heated aerosol-generating article according to claim 1 , wherein the substantially non-flammable rigid hollow tube is formed from a polymeric, a ceramic, or a metallic material.

3. The heated aerosol-generating article according to claim 1 , wherein the substantially non-flammable rigid hollow tube is formed from a material selected from the list consisting of a metal foil, a ceramic, a highly filled paper, and a Polyaryletherketone (PAEK).

4. The heated aerosol-generating article according to claim 1 , wherein a second rigid hollow tube is disposed downstream of the aerosol-forming substrate.

5. The heated aerosol-generating article according to claim 1 , further comprising an aerosol-cooling element located downstream of the aerosol-forming substrate.

6. The heated aerosol-generating article according to claim 1 , wherein the aerosol-forming substrate comprises a gathered sheet of homogenised tobacco.

7. A heated aerosol-generating system, comprising:
a heated aerosol-generating article, comprising:
a plurality of components including an aerosol-forming substrate assembled within a wrapper to form a rod having a mouth end and a distal end upstream from the mouth end,
a substantially non-flammable rigid hollow tube disposed upstream from the aerosol-forming substrate within the wrapper, said tube having an external diameter of between 5 mm and 15 min and a length of between 5 mm and 15 mm, and
a pierceable film spanning one end of the substantially non-flammable rigid hollow tube and being configured to protect the aerosol-forming substrate from an applied flame, such that the heated aerosol-generating article has a lowered propensity for flame ignition due to a presence of the pierceable film and of the substantially non-flammable rigid hollow tube; and

an aerosol-generating device comprising means for heating the aerosol-forming substrate to generate an inhalable aerosol.

8. The heated aerosol-generating system according to claim 7 , wherein the means for heating the aerosol-forming substrate comprises one or more heater elements insertable into the aerosol-forming substrate through a lumen of the substantially non-flammable rigid hollow tube.

9. The heated aerosol-generating system according to claim 7 , wherein the means for heating the aerosol-forming substrate comprises one or more heater elements radially spaced from the aerosol-generating article when the aerosol-generating article is engaged with the aerosol-generating device.

10. The heated aerosol-generating system according to claim 7 , wherein the means for heating the aerosol-forming substrate comprises an inductor for heating a susceptor.

11. A method of smoking a heated aerosol-generating article,
the heated aerosol-generating article comprising:
a plurality of components including an aerosol-forming substrate assembled within a wrapper to form a rod having a mouth end and a distal end upstream from the mouth end,
a substantially non-flammable rigid hollow tube disposed upstream from the aerosol-forming substrate within the wrapper, said tube having an external diameter of between 5 mm and 15 mm and a length of between 5 mm and 15 mm, and
a pierceable film spanning one end of the substantially non-flammable rigid hollow tube and being configured to protect the aerosol-forming substrate from an applied flame, such that the heated aerosol-generating article has a lowered propensity for flame ignition due to a presence of the pierceable film and of the substantially non-flammable rigid hollow tube; and

the method comprising:
engaging the heated aerosol-generating article with an aerosol-generating device for heating the aerosol-generating substrate;
actuating the aerosol-generating device to heat the aerosol-forming substrate; and
drawing on the mouth end of the rod to cause air to flow into the heated aerosol-generating article through a lumen of the substantially non-flammable rigid hollow tube, through the aerosol-forming substrate, and out of the aerosol-generating article through the mouth end.

Assignees

• Philip Morris Products Sa

Inventors

• Malgat Alexandre
• Roudier Stephane
• Borges De Couraca Ana Carolina
• Lavanchy Frederic
• Meyer Cedric

Classifications

• A61M15/06

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

• A24F40/42 Primary

  Cartridges or containers for inhalable precursors · CPC title

• H05B6/105

  using a susceptor · CPC title

• A24B15/12

  of reconstituted tobacco · CPC title

• A24F47/008 Primary

  Human Necessities · mapped topic