Consumable aerosol-generating article with liquid aerosol-forming substrate, and an aerosol-generating system

Patent metadata

Field	Value
Publication number	US-10499690-B2
Application number	US-201715711347-A
Country	US
Kind code	B2
Filing date	Sep 21, 2017
Priority date	May 31, 2016
Publication date	Dec 10, 2019
Grant date	Dec 10, 2019

Abstract

The aerosol-generating article is capable of being used with an electrically-operated aerosol-generating device. The aerosol-generating article is a consumable article having an outlet end, a distal end upstream from the outlet end, and a mid-point located an equal distance between the outlet end and the distal end. The article includes a first volatile liquid substrate contained within a first frangible capsule, the frangible capsule being located between the distal end and the mid-point, and a second volatile liquid substrate contained within a second frangible capsule, the second frangible capsule being located between the distal end and the mid-point. The article also includes a liquid retention medium, at least a portion the liquid retention medium being located between the distal end and the mid-point, wherein the article is configured to allow air to be drawn through the article from the distal end to the outlet end.

First claim

What is claimed is:

1. An aerosol-generating article for use with an electrically-operated aerosol-generating device, the aerosol-generating article being a consumable article, the aerosol-generating article having an outlet end and a distal end upstream from the outlet end, a middle of the aerosol-generating article being an equal distance between the outlet end and the distal end, the article comprising;
a first volatile liquid substrate in a first frangible capsule, the frangible capsule being between the distal end and the middle;
a second volatile liquid substrate in a second frangible capsule, the second frangible capsule being between the distal end and the middle; and
a liquid retention medium, at least a portion the liquid retention medium being between the distal end and the middle,
wherein the article is configured such that air is drawn through the article from the distal end to the outlet end if a negative pressure is applied to the outlet end.

2. The aerosol-generating article of claim 1 , wherein the article includes,
a liquid aerosol-forming substrate, the first volatile liquid substrate including a first constituent of the liquid aerosol-forming substrate, and the second volatile liquid substrate including a second constituent of the liquid aerosol-forming substrate.

3. The aerosol-generating article of claim 2 , wherein the liquid aerosol-forming substrate includes between 10 weight percent and 25 weight percent water, an aerosol former, and at least one flavorant.

4. The aerosol-generating article of claim 1 , wherein the first volatile liquid substrate includes a first liquid aerosol-forming substrate, and the second volatile liquid substrate includes a second liquid aerosol-forming substrate.

5. The aerosol-generating article of claim 1 , wherein,
the first volatile liquid substrate is releasably contained within the first frangible capsule, and
the second volatile liquid substrate is releasably contained within the second frangible capsule, and the liquid retention medium is located near the first and second frangible capsules, the liquid retention medium being configured to retain the first and second volatile liquid substrates within the article after the first and second volatile liquid substrates are released from the respective first and second frangible capsules.

6. The aerosol-generating article of claim 1 , further comprising:
a plurality of elements assembled by a wrapper in the form of a rod, the liquid retention medium being in a first element of the plurality of elements.

7. The aerosol-generating article of claim 1 , wherein the first and second frangible capsules are in the liquid retention medium.

8. The aerosol-generating article of claim 1 , wherein the liquid retention medium is a tube having a lumen, and the first and second frangible capsules are located within the lumen of the tube.

9. The aerosol-generating of claim 8 , wherein the first and second frangible capsules are coaxially aligned in the lumen of the tube.

10. The aerosol-generating article of claim 1 , wherein the liquid retention medium includes an absorbent polymeric material.

11. The aerosol-generating article of claim 1 , wherein at least one of the first and second frangible capsules is configured to rupture by an application of an external force.

12. The aerosol-generating article of claim 1 , wherein at least one of the first and second frangible capsules is configured to be pierced by a piercing element.

13. The aerosol-generating article of claim 6 , further comprising:
a cooler located downstream from the liquid retention medium, the cooler being a second element of the plurality of elements.

14. The aerosol-generating article of claim 6 , further comprising:
a mouthpiece filter located at the outlet end of the article, the mouthpiece filter being a third element of the plurality of elements.

15. The aerosol-generating article of claim 1 , further comprising:
a porous plug located at the distal end of the article.

16. An aerosol-generating system, comprising:
an aerosol-generating article, the aerosol-generating article being a consumable article, the aerosol-generating article having an outlet end and a distal end upstream from the outlet end, a middle of the aerosol-generating article being an equal distance between the outlet end and the distal end, the article including,
a first volatile liquid substrate in a first frangible capsule, the frangible capsule being between the distal end and the middle,
a second volatile liquid substrate in a second frangible capsule, the second frangible capsule being between the distal end and the middle; and
a liquid retention medium, at least a portion the liquid retention medium being between the distal end and the middle,
wherein the article is configured such that air is drawn through the article from the distal end to the outlet end if a negative pressure is applied to the outlet end; and

an electrically-operated aerosol-generating device, the electrically-operated aerosol-generating device including a heating element for heating at least one of the first volatile liquid substrate and the second volatile liquid substrate retained in the liquid retention medium to form an aerosol.

17. The aerosol-generating system of claim 16 , further comprising:
a piercing element for piercing at least one of the first and second frangible capsules.

Assignees

• Altria Client Services Llc

Inventors

• Thorens Michel

Classifications

• A61M2205/3646

  by heat accumulators, e.g. ice, sand · CPC title

• A61M2205/0211

  Ceramics · CPC title

• A61M2205/7545

  for solid matter, e.g. microaggregates · CPC title

• A61M15/0003

  with means for dispensing more than one drug · CPC title

• A61M2205/3606

  cooled · CPC title