Aerosolization using two aerosol generators

Patent metadata

Field	Value
Publication number	US-12337105-B2
Application number	US-202418733777-A
Country	US
Kind code	B2
Filing date	Jun 4, 2024
Priority date	Sep 22, 2017
Publication date	Jun 24, 2025
Grant date	Jun 24, 2025

Abstract

An aerosol delivery device includes a first aerosol generator to generate a first aerosol from a first aerosol precursor and to introduce the first aerosol into a first fluid flow pathway, and a second aerosol generator to generate a second aerosol from a second aerosol precursor and to introduce the second aerosol into a second fluid flow pathway. The first aerosol is sized for pulmonary penetration. The second aerosol generator comprises a Venturi aperture to dispense and aerosolise the second aerosol precursor in the second aerosol generator. The second aerosol precursor is a liquid, and the second aerosol is sized to inhibit pulmonary penetration. The second aerosol is transmissible within a mammalian oral and/or nasal cavity. The second aerosol includes an active component for activating at least one of: one or more taste receptors in the oral cavity and one or more olfactory receptors in the nasal cavity.

First claim

The invention claimed is:

1. An aerosol delivery device comprising:
a first aerosol generator for generating a first aerosol from a first aerosol precursor containing a flavor component;
a first fluid flow pathway connected to the first aerosol generator;
a second aerosol generator for generating a second aerosol from a second aerosol liquid precursor containing an active component, the second aerosol generator converting the second aerosol liquid precursor into the second aerosol via ultrasonic aerosolization;
a second fluid flow pathway connected to the second aerosol generator; and
the first and second fluid flow pathways leading to a mouthpiece.

2. The aerosol delivery device of claim 1 wherein second aerosol generator comprises a piezoelectric element.

3. The aerosol delivery device of claim 2 further including a perforated membrane linked to the piezoelectric element.

4. The aerosol delivery device of claim 1 wherein the second aerosol generator is configured to introduce the second aerosol into the second fluid flow pathway at a pre-set period of time following an actuation of the first aerosol generator.

5. The aerosol delivery device of claim 1 wherein the first and second fluid flow pathways extend side-by-side and parallel to each other within a housing.

6. The aerosol delivery device of claim 1 wherein the first and second fluid flow pathways are concentric.

7. The aerosol delivery device of claim 1 wherein the first and second fluid flow pathways lead into a plenum in or adjacent to the mouthpiece.

8. An aerosol delivery device comprising:
a first aerosol generator for generating a first aerosol from a first aerosol precursor containing a flavor component via a first ultrasonic element;
a first fluid flow pathway extending from the first aerosol generator;
a second aerosol generator for generating a second aerosol from a second aerosol precursor containing an active component via a second ultrasonic element;
a second fluid flow pathway extending from the second aerosol generator; and
the first and second fluid flow pathways leading towards a mouthpiece.

9. The aerosol delivery device of claim 8 wherein at least one of the first and second ultrasonic elements comprises a piezoelectric element contacting a precursor substrate.

10. The aerosol delivery device of claim 9 further including a perforated membrane linked to the piezoelectric element.

11. The aerosol delivery device of claim 8 wherein the second aerosol generator is configured to introduce the second aerosol into the second fluid flow pathway at a pre-set period of time following an actuation of the first aerosol generator.

12. The aerosol delivery device of claim 8 wherein the first and second fluid flow pathways extend side-by-side and parallel to each other within a housing.

13. The aerosol delivery device of claim 8 wherein the first and second fluid flow pathways are concentric.

14. The aerosol delivery device of claim 8 wherein the first and second aerosol generators are arranged sequentially within a housing.

15. The aerosol delivery device of claim 8 wherein the first and second fluid flow pathways lead into a plenum in or adjacent to the mouthpiece.

16. An aerosol delivery device comprising:
first and second aerosol generators in a housing;
the first aerosol generator configured for generating a first aerosol from a first aerosol precursor;
the second aerosol generator configured for generating a second aerosol from a second aerosol precursor different from the first aerosol precursor;
first and second fluid flow pathways associated with the first and second aerosol generators, respectively, the first fluid flow pathway merging with the second fluid flow pathway in the housing; and
the second aerosol generator configured to introduce the second aerosol into the second fluid flow pathway at a pre-set period of time following an actuation of the first aerosol generator.

17. The aerosol delivery device of claim 16 wherein at least one of the first and second aerosol generators comprises a piezoelectric element.

18. The aerosol delivery device of claim 16 wherein the first and second fluid flow pathways extend side-by-side and parallel to each other within a housing.

19. The aerosol delivery device of claim 16 wherein the first and second fluid flow pathways are concentric.

20. The aerosol delivery device of claim 16 wherein the first and second fluid flow pathways merge in a plenum in or adjacent to a mouthpiece.

Assignees

• Imperial Tobacco Ltd

Inventors

• Jones David
• Lord Chris
• Sudlow Thomas

Classifications

• A24F40/48

  Fluid transfer means, e.g. pumps · CPC title

• A24F40/485

  Valves; Apertures · CPC title

• A24F40/30

  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

• H05B2203/021

  Heaters specially adapted for heating liquids · CPC title