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

• US 10,617,151 B2
• Filed: 07/21/2016
• Issued: 04/14/2020
• Est. Priority Date: 07/21/2016
• Status: Active Grant

• Current Assignee: RAI STRATEGIC HOLDINGS, INC. (British American Tobacco PLC)
• Original Assignee: RAI STRATEGIC HOLDINGS, INC. (British American Tobacco PLC)
• 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.
• Primary Examiner(s): Paik, Sang Y
• Application Number:
  US15/216,582
• Publication Number:
  US 20180020722A1
• Time in Patent Office: 1,363 Days
• Field of Search: 392386-406
• CPC Class Codes: A24F 40/10 Devices using liquid inhalable precursors
• CPC Class Codes: A24F 40/44 Wicks
• CPC Class Codes: A24F 40/46 Shape or structure of electric heating means
• CPC Class Codes: A24F 40/70 Manufacture
• CPC Class Codes: A61M 11/042 electrical
• CPC Class Codes: A61M 15/06 Inhaling appliances shaped like cigars, cigarettes or pipes
• CPC Class Codes: A61M 2016/0024 with an on-off output signal, e.g. from a switch
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/582 by tactile feedback
• CPC Class Codes: A61M 2205/587 Lighting arrangements
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 2205/8237 Charging means
• CPC Class Codes: F22B 1/284 with water in reservoirs
• CPC Class Codes: H05B 1/0297 Heating of fluids for non specified applications
• CPC Class Codes: H05B 3/44 heating conductor arranged within rods or tubes of insulating material

Abstract

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

Claims

1. An aerosol delivery device, comprising:

an outer body having opposed first and second ends defining an axis;

a heating element received in the outer body and having a heating portion extending along the axis;

a reservoir received in the outer body;

a first heating terminal and a second heating terminal extending from the first end or the second end toward and into removable engagement with the heating element, an inner surface of the heating portion extending about and engaging at least a portion of the first heating terminal or the second heating terminal; and

a liquid transport element at least partially received within the reservoir and engaged with the heating element, such that an outer surface of the heating element is configured to contact an inner surface of the liquid transport element;

the liquid transport element comprising a porous monolith, and

wherein the first heating terminal and the second heating terminal are positioned between the liquid transport element and the reservoir.

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

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

4. The aerosol delivery device of claim 1, wherein the liquid transport element defines one or more channels extending at least partially therethrough.

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

6. The aerosol delivery device of claim 4, wherein the first heating terminal and the second heating terminal are at least partially received in the one or more channels.

7. The aerosol delivery device of claim 6, further comprising an electronic component at least partially received in the one or more channels.

8. The aerosol delivery device of claim 7, wherein the electronic component is positioned between the first heating terminal and the second heating terminal.

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

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

11. The aerosol delivery device of claim 1, further comprising a flow director,

the flow director defining a longitudinal axis extending substantially parallel to a longitudinal axis of the liquid transport element.

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

13. The aerosol delivery device of claim 12, wherein a longitudinal axis of the electronic component extends substantially perpendicular to a longitudinal axis of the outer body.

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

15. A method for producing an aerosol delivery device, the method comprising:

positioning a heating element, a first heating terminal and a second heating terminal, a reservoir, and a liquid transport element in an outer body having opposed first and second ends defining an axis, such that the first heating terminal and the second heating terminal are positioned between the liquid transport element and the reservoir and extend from the first end or the second end toward and into removable engagement with the heating element having a heating portion extending along the axis, such that an inner surface of the heating portion extends about and engages at least a portion of the first heating terminal or the second heating terminal, and such that an outer surface of the liquid transport element is in contact with the reservoir and an inner surface of the liquid transport element is in contact with an outer surface of the heating element,

wherein positioning the heating element, the reservoir and the liquid transport element in the outer body comprises aligning a respective longitudinal axis of the heating element, the reservoir and the liquid transport element.

16. The method of claim 15, further comprising positioning the liquid transport element at least partially within the reservoir.

17. The method of claim 16, wherein positioning the liquid transport element at least partially within the reservoir comprises wrapping the liquid transport element with the reservoir.

18. The method of claim 15, further comprising inserting the heating element into a channel extending at least partially though the liquid transport element.