Multiple use aerosol-generating system

Patent metadata

Field	Value
Publication number	US-10085482-B2
Application number	US-201414901860-A
Country	US
Kind code	B2
Filing date	Jul 2, 2014
Priority date	Jul 3, 2013
Publication date	Oct 2, 2018
Grant date	Oct 2, 2018

Abstract

An aerosol-generating system is provided, including a housing having a first portion and a second portion. The housing includes an air inlet; a nicotine source; a volatile delivery enhancing compound source; and an air outlet. The first portion of the housing and the second portion of the housing are movable relative to one another between an open position and a closed position. In the open position, the air inlet and the air outlet are unobstructed and the nicotine source and the volatile delivery enhancing compound source are both in fluid communication with an airflow pathway through the housing between the air inlet and the air outlet. In the closed position, either the air inlet is obstructed or the nicotine source and the volatile delivery enhancing compound source are both not in fluid communication with an airflow pathway through the housing between the air inlet and the air outlet or both.

First claim

The invention claimed is:

1. An aerosol-generating system, comprising:
a housing having a first portion and a second portion, the housing comprising:
an air inlet;
a nicotine source;
a volatile delivery enhancing compound source; and
an air outlet,

wherein the first portion of the housing and the second portion of the housing are movable relative to one another from:
an open position in which the nicotine source and the volatile delivery enhancing compound source are both in fluid communication with an airflow pathway through the housing between the air inlet and the air outlet, to
a closed position in which
(i) the air flow pathway through the housing between the air inlet and the air outlet is blocked such that airflow into the housing through the air inlet, along the airflow pathway through the housing between the air inlet and the air outlet, and out of the housing through the air outlet, is substantially prevented,
(ii) the nicotine source and the volatile delivery enhancing compound source are both not in fluid communication with the airflow pathway through the housing between the air inlet and the air outlet, or
(iii) the air flow pathway through the housing between the air inlet and the air outlet is blocked such that airflow into the housing through the air inlet, along the airflow pathway through the housing between the air inlet and the air outlet, and out of the housing through the air outlet, is substantially prevented, and the nicotine source and the volatile delivery enhancing compound source are both not in fluid communication with the airflow pathway through the housing between the air inlet and the air outlet, and

wherein the first portion of the housing and the second portion of the housing are movable relative to one another from the closed position to the open position.

2. The aerosol-generating system according to claim 1 , wherein thy: nicotine source and the volatile delivery enhancing compound source are arranged in series within the housing so that in the open position an air stream drawn along the airflow pathway through the housing between the air inlet and the air outlet passes a first one of the nicotine source and the volatile delivery enhancing compound source and then passes a second one of the nicotine source and the volatile delivery enhancing compound source.

3. The aerosol-generating system according to claim 1 , wherein thy: nicotine source and the volatile delivery enhancing compound source are not in fluid communication with one another in the closed position.

4. The aerosol-generating system according to claim 1 , wherein the first portion of the housing and the second portion of the housing are slidable relative to one another from the closed position to the open position and from the open position to the closed position.

5. The aerosol-generating system according to claim 1 , wherein the first portion of the housing and the second portion of the housing are rotatable relative to one another from the closed position to the open position and from the open position to the closed position.

6. The aerosol-generating system according to claim 1 , further comprising:
one or more first apertures in the first portion of the housing; and
one or more second apertures in the second portion of the housing,
wherein, in the open position, the one or more first apertures in the first portion of the housing and the one or more second apertures in the second portion of the housing are substantially aligned and, in the closed position, the one or more first apertures in the first portion of the housing and the one or more second apertures in the second portion of the housing are substantially misaligned.

7. The aerosol-generating system according to claim 1 , wherein the nicotine source and the volatile delivery enhancing compound source are both disposed in the first portion of the housing.

8. The aerosol-generating system according to claim 7 ,
wherein the first portion of the housing comprises the air inlet and the air outlet, and
wherein the first portion of the housing and the second portion of the housing are movable relative to one another between:
the open position in which the nicotine source and the volatile delivery enhancing compound source are both in fluid communication with the airflow pathway, which is through the first portion of the housing between the air inlet and the air outlet, and
the closed position, in which one or both of the air inlet and the air outlet are blocked by the second portion of the housing.

9. The aerosol-generating system according to claim 7 , wherein the second portion of the housing is separated from the first portion of the housing in the open position.

10. The aerosol-generating system according to claim 1 , wherein a first one of the nicotine source and the volatile delivery enhancing compound source is located in the first portion of the housing, and a second one of the nicotine source and the volatile delivery enhancing compound source is located in the second portion of the housing.

11. The aerosol-generating system according to claim 1 , wherein the housing comprises a first compartment comprising the nicotine source and a second compartment comprising the volatile delivery enhancing compound source.

12. The aerosol-generating system according to claim 11 , wherein one or both of the first compartment and the second compartment are initially sealed by one or more frangible seals.

13. The aerosol-generating system according to claim 1 , wherein thy: volatile delivery enhancing compound source comprises an acid.

14. The aerosol-generating system according to claim 13 , wherein the acid is selected from the group consisting of lactic acid, 3-methyl-2-oxovaleric acid, pyruvic acid, 2-oxovaleric acid, 4-methyl-2-oxovaleric acid, 3-methyl-2-oxobutanoic acid, 2-oxooctanoic acid, and combinations thereof.

15. The aerosol-generating system according to claim 1 , further comprising:
an aerosol-generating article comprising the nicotine source and the volatile delivery enhancing compound source; and
an aerosol-generating device comprising:
a cavity configured to receive the nicotine source and the volatile delivery enhancing compound source of the aerosol-generating article; and
a heater configured to heat one or both of the nicotine source and the volatile delivery enhancing compound source of the aerosol-generating article within the cavity.

Assignees

• Philip Morris Products Sa

Inventors

• Silvestrini Patrick

Classifications

• A24B15/16

  of tobacco substitutes · CPC title

• A24F47/008 Primary

  Human Necessities · mapped topic

• A24F40/485

  Valves; Apertures · CPC title

• A24F40/30 Primary

  Devices using two or more structurally separated inhalable precursors, e.g. using two liquid precursors in two cartridges · CPC title

• A24F40/10

  Devices using liquid inhalable precursors · CPC title