Aerosol delivery device with a unitary reservoir and liquid transport element comprising a porous monolith and related method

Patent metadata

Field	Value
Publication number	US-10602775-B2
Application number	US-201615216590-A
Country	US
Kind code	B2
Filing date	Jul 21, 2016
Priority date	Jul 21, 2016
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

The present disclosure relates to aerosol delivery devices, elements of such devices, and methods for producing vapor. In some embodiments, the present disclosure provides devices configured for vaporization of an aerosol precursor composition that is contained in and transported to a heating element by a unitary reservoir and liquid transport element. The unitary reservoir and liquid transport element may include a porous monolith.

First claim

The invention claimed is:

1. An aerosol delivery device, comprising:
an outer body extending along an axis from a first end to a second end, the second end defining a mouthpiece;
a heating element having a heating portion;
a unitary reservoir and liquid transport element disposed within the outer body and comprising an integral porous monolith and storing an aerosol precursor composition, wherein the unitary reservoir and liquid transport element has the heating element engaged therewith, with the heating portion extending along the axis, and wherein the unitary reservoir and liquid transport element defines one or more channels extending at least partially therethrough and into communication with the heating element; and
a first heating terminal and a second heating terminal each extending from the first end of the outer body toward the second end of the outer body, at least partially through the one or more channels defined by the unitary reservoir and liquid transport element and into electrical communication with the heating element such that the heating portion extends parallel to the first and second heating terminals, the first heating terminal and the second heating terminal being arranged to direct electrical current from the first end of the outer body to the heating element, the heating portion of the heating element producing heat in response to the electrical current to vaporize at least a portion of the aerosol precursor composition stored in the unitary reservoir and liquid transport element, the vaporized aerosol precursor composition being directed through the mouthpiece defined by the second end of the outer body.

2. The aerosol delivery device of claim 1 , wherein a longitudinal axis of the heating element is substantially parallel to the axis of the outer body.

3. The aerosol delivery device of claim 1 , wherein the integral porous monolith comprises at least one of a porous ceramic and a porous glass.

4. The aerosol delivery device of claim 1 , wherein the heating element is at least partially received in the one or more channels.

5. The aerosol delivery device of claim 1 , further comprising an electronic component at least partially received in the one or more channels.

6. The aerosol delivery device of claim 5 , wherein the electronic component is positioned between the first heating terminal and the second heating terminal.

7. The aerosol delivery device of claim 5 , wherein a longitudinal axis of the electronic component extends substantially parallel to the axis of the outer body.

8. The aerosol delivery device of claim 1 , wherein the heating element extends at least partially about the unitary reservoir and liquid transport element.

9. The aerosol delivery device of claim 8 , wherein the unitary reservoir and liquid transport element defines a protrusion and the heating element extends at least partially about the protrusion.

10. The aerosol delivery device of claim 1 , further comprising a base engaged with the outer body and an electronic component positioned between the base and the unitary reservoir and liquid transport element.

11. The aerosol delivery device of claim 10 , wherein a longitudinal axis of the electronic component extends substantially perpendicular to the axis of the outer body.

12. The aerosol delivery device of claim 11 ,
wherein the first heating terminal and the second heating terminal extend substantially perpendicular to the longitudinal axis of the electronic component.

13. The aerosol delivery device of claim 1 , wherein the unitary reservoir and liquid transport element defines a variable porosity.

14. The aerosol delivery device of claim 1 , wherein the integral porous monolith stores a substantial entirety of the aerosol precursor composition.

15. A method for producing a vapor, the method comprising:
receiving a unitary reservoir and liquid transport element comprising an integral porous monolith and storing an aerosol precursor composition therein within an outer body extending along an axis from a first end to a second end, the second end defining a mouthpiece and the unitary reservoir;
engaging a heating element having a heating portion with the unitary reservoir and liquid transport element, the heating portion extending along the axis and the unitary reservoir and liquid transport element defining one or more channels extending at least partially therethrough and into communication with the heating element;
coupling a first heating terminal and a second heating terminal, each heating terminal extending from the first end of the outer body toward the second end of the outer body, into electrical communication with the heating element at least partially through the one or more channels defined by the unitary reservoir and liquid transport element, such that the heating portion extends parallel to the first and second heating terminals; and
directing an electrical current through the first heating terminal and the second heating terminal, from the first end of the outer body to the heating element, the heating element producing heat in response to the electrical current to vaporize
at least a portion of the aerosol precursor composition stored in the unitary reservoir and liquid transport element, the vaporized aerosol precursor composition being directed through the mouthpiece defined by the second end of the outer body.

16. The method of claim 15 , wherein directing the electrical current to the heating element comprises directing the electrical current to the heating element substantially surrounded by the unitary reservoir and liquid transport element.

17. The method of claim 15 , wherein directing the electrical current to the heating element comprises directing the electrical current to the heating element extending around at least a portion of the unitary reservoir and liquid transport element.

18. The method of claim 15 , further comprising directing an airflow through the one or more channels extending at least partially through the unitary reservoir and liquid transport element.

Assignees

• Rai Strategic Holdings Inc

Inventors

• Davis Michael F
• Phillips Percy D
• Rogers James W
• Ampolini Frederic P
• Clemens David A
• Carpenter William K
• Joyce Owen L
• King Michael L
• Ahr Sean M

Classifications

• A61M11/042

  electrical · CPC title

• A61M2016/0027

  pressure meter · CPC title

• A61M2205/8206

  battery-operated · CPC title

• B65D83/72

  with heating or cooling devices, e.g. heat exchangers · CPC title

• A61M2205/3653

  by Joule effect, i.e. electric resistance · CPC title