Substitute smoking device comprising multiple aerosols and passive aerosol generation

Patent metadata

Field	Value
Publication number	US-12059525-B2
Application number	US-202017002248-A
Country	US
Kind code	B2
Filing date	Aug 25, 2020
Priority date	Sep 22, 2017
Publication date	Aug 13, 2024
Grant date	Aug 13, 2024

Abstract

There is disclosed an aerosol delivery device. The aerosol delivery device includes a first aerosol first aerosol sized for pulmonary penetration; and a second aerosol sized to inhibit pulmonary penetration. The second aerosol is transmissible within at least one of: a mammalian oral cavity and a mammalian nasal cavity, and the second aerosol comprising an active component for activating at least one of: one or more taste receptors in said oral cavity and one or more olfactory receptors in said nasal cavity. The second aerosol generator includes a Venturi aperture to generate the second aerosol.
There is disclosed a consumable for a substitute smoking device and a substitute smoking system. The consumable includes an airflow passage between an upstream inlet of the consumable and a downstream outlet of the consumable. The consumable also includes a porous member for passive aerosol generation. The airflow passage is constricted by the porous member to form a narrowed portion of the airflow passage.
In another embodiment, the consumable also includes an inner porous member ( 315 ) for passive aerosol generation. The airflow passage has an annular portion surrounding at least a portion of the porous member.
In another embodiment, a portion of the airflow passage is located between a porous surface of the porous member and an opposing airflow passage wall. A minimum distance between the porous surface of the porous member and the opposing airflow passage wall is less than 1000 microns.
In another embodiment, the consumable also includes a porous member ( 315 ) for passive aerosol generation located within the airflow passage. The porous member is tapered along a longitudinal axis of the consumable.
In another embodiment, the consumable has a longitudinal axis and includes an airflow passage ( 308 ) between an upstream inlet of the consumable and a downstream outlet of the consumable. The consumable also includes a porous member ( 315 ) for passive aerosol generation. A longitudinal cross section of the airflow passage includes an inclined portion forming a passage angle with the longitudinal axis of the consumable. The passage angle is greater than zero degrees and less than 90 degrees and a wall of the inclined portion is formed from a porous surface ( 318 ) of the porous member.
In another embodiment, the consumable includes an active aerosol generator ( 304 ) for generating a first aerosol from a first aerosol precursor ( 310 ), and a passive aerosol generator ( 305 ) for generating a second aerosol from a second aerosol precursor ( 316 ).
In another embodiment, the consumable also includes an aerosol generator for generating an aerosol. An external portion of the aerosol generator is located at the outlet of the consumable.
In another embodiment, the consumable also includes an aerosol generator for generating an aerosol at an aerosol generation location. The aerosol generation location is substantially at the outlet located at a mouthpiece of the consumable.
In another embodiment, the outlet is located at a mouthpiece portion of the consumable; and the mouthpiece portion includes a nozzle for control of an aerosol from the aerosol generator.

First claim

We claim:

1. An aerosol delivery device comprising:
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, wherein the first aerosol is sized for pulmonary penetration;
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, wherein the second aerosol is sized to inhibit pulmonary penetration;
wherein the second aerosol is transmissible within at least one of: a mammalian oral cavity and a mammalian nasal cavity, and the second aerosol comprising 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, and;
wherein the second aerosol generator comprises a Venturi aperture to dispense and aerosolize the second aerosol precursor in the second aerosol generator, wherein the second aerosol precursor is a liquid;
wherein the second aerosol generator comprises a porous member for containing the second aerosol precursor.

2. The aerosol delivery device according to claim 1 , wherein the Venturi aperture is located proximate to an outlet at a mouthpiece outlet of the aerosol delivery device.

3. The aerosol delivery device according to claim 1 , wherein the Venturi aperture is located substantially at a mouthpiece outlet of the device.

4. The aerosol delivery device according to claim 1 , wherein the second aerosol is at least one of:
sized to inhibit penetration to the trachea;
sized to inhibit penetration to the larynx;
sized to inhibit penetration to the laryngopharynx; and
sized to inhibit penetration to the oropharynx.

5. The aerosol delivery device according to claim 1 , wherein the second aerosol has a mass median aerodynamic diameter that is greater than or equal to 15 microns, greater than 30 microns, greater than 50 microns, greater than 60 microns, or greater than 70 microns.

6. The aerosol delivery device according to claim 1 , wherein the second aerosol has a maximum mass median aerodynamic diameter that is less than 300 microns, less than 200 microns, or less than 100 microns.

7. The aerosol delivery device according to claim 1 , wherein the first aerosol precursor comprises components such that the first aerosol comprises a pulmonary deliverable active component.

8. The aerosol delivery device according to claim 1 , wherein the first aerosol has a mass median aerodynamic diameter less than or equal to 10 microns, less than 8 microns, less than 5 microns, or less than 1 micron.

9. The aerosol delivery device according to claim 1 , wherein the first aerosol generator is configured to heat the first aerosol precursor.

10. The aerosol delivery device according to claim 1 , wherein the first aerosol generator is configured to agitate the first aerosol precursor.

11. The aerosol delivery device according to claim 1 , wherein the porous member includes a porous wicking material.

12. The aerosol delivery device according to claim 11 , wherein a portion of the porous member is located in a low pressure region, wherein in use, the Venturi aperture forms the low pressure region.

13. The aerosol delivery device according to claim 1 , wherein a portion of the porous member is located in a low pressure region, wherein in use, the Venturi aperture forms the low pressure region.

14. The aerosol delivery device according to claim 13 , wherein, in use, the second aerosol is generated from a porous surface of the porous member into an airflow through the Venturi aperture.

15. The aerosol delivery device according to claim 14 , wherein the porous surface is located in the low pressure region.

16. The aerosol delivery device according to claim 1 , wherein the first fluid flow pathway further receives the first aerosols from a first aerosol inlet of the device.

17. The aerosol delivery device according to claim 16 , wherein the first aerosol inlet is configured to inject the first aerosol into the first fluid flow pathway.

18. The aerosol delivery device according to claim 1 , wherein the second fluid flow pathway further receives the second aerosol from a second aerosol inlet of the device.

19. The aerosol delivery device according to claim 18 , wherein the second aerosol inlet is configured to inject the second aerosols into the second fluid flow pathway.

20. An aerosol delivery device comprising:
a first aerosol generator configured to generate a first aerosol from a first aerosol precursor and to introduce the first aerosol into a first flow pathway, wherein the first aerosol has a mass median aerodynamic diameter less than or equal to 10 microns;
a second aerosol generator including a venturi aperture and configured to generate a second aerosol from a liquid second aerosol precursor and to introduce the second aerosol into a second flow pathway, wherein the second aerosol has a mass median aerodynamic diameter greater than or equal to 15 microns; and
the second aerosol comprising an active component for activating at least one taste receptor in the oral cavity and/or at least one olfactory receptor in the nasal cavity;
wherein the second aerosol generator comprises a porous member for containing the liquid second aerosol precursor.

Assignees

• Nerudia Ltd

Inventors

• Jones David
• Lord Chris
• Sudlow Tom
• Shenton Edward Ross
• Austin Andrew
• Sajtos Tamas

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