Smoking articles and use thereof for yielding inhalation materials

• US 10,492,542 B1
• Filed: 09/09/2019
• Issued: 12/03/2019
• Est. Priority Date: 08/09/2011
• Status: Active Grant

• Current Assignee: RAI STRATEGIC HOLDINGS, INC. (British American Tobacco PLC)
• Original Assignee: RAI STRATEGIC HOLDINGS, INC. (British American Tobacco PLC)
• Inventors: Worm, Steven L., Christopherson, David Glen, Sears, Stephen Benson, Potter, Dennis Lee, Ampolini, Frederic Philippe, Ademe, Balager
• Primary Examiner(s): Cordray, Dennis R
• Application Number:
  US16/564,902
• Publication Number:
  US 20190387807A1
• Time in Patent Office: 85 Days
• Field of Search: None
• CPC Class Codes: A24F 40/10 Devices using liquid inhalable precursors
• CPC Class Codes: A24F 40/20 Devices using solid inhalable precursors
• CPC Class Codes: A24F 40/40 Constructional details, e.g. connection of cartridges and battery parts
• CPC Class Codes: A24F 40/42 Cartridges or containers for inhalable precursors
• CPC Class Codes: A24F 40/46 Shape or structure of electric heating means
• CPC Class Codes: A24F 40/50 Control or monitoring

Abstract

The present invention describes articles, such as smoking articles, that can provide an inhalable substance in a form suitable for inhalation by a consumer. The article comprises a cartridge with an inhalable substance medium therein, control housing that includes an electrical energy source and an electrical power source, and a heating member that may be located in either the cartridge or the control housing. The control housing further may include puff-actuated current actuation components and current regulation components.

Claims

1. A smoking article for receiving a disposable aerosol forming substance, the smoking article comprising:

a housing having a proximal end for receiving the disposable aerosol forming substance and an opposite distal end;

a power source arranged within the housing adjacent to the distal end;

a receiving chamber formed at the proximal end of the housing and having an opening for receiving the disposable aerosol forming substance;

a heating projection extending at least partially in the receiving chamber towards the proximal end of the housing and terminating at a free end which is configured to be inserted into the disposable aerosol forming substance for heating the disposable aerosol forming substance, the heating projection comprising;

a heating member comprising an electrically resistive metal which is configured to heat the disposable aerosol forming substance;

an electrical connector for providing a flow of electricity to the heating member for heating the heating member; and

a control circuit positioned within the housing between the power source and the heating projection and connecting the heating member of the heating projection to the power source.

2. The smoking article of claim 1, further comprising a pushbutton, wherein in response to the pushbutton being manually actuated by a user, a flow of electrical current to the heating member is initiated.

3. The smoking article of claim 1, further comprising an indicator, wherein in response to activation of the smoking article, the indicator is turned on.

4. The smoking article of claim 1, wherein the heating member is a linear array of electrically resistive metal arranged on the heating projection.

5. The smoking article of claim 1, wherein the heating projection is formed of an electrically non-conductive material.

6. The smoking article of claim 1, wherein the heating projection is formed of a thermal insulator.

7. The smoking article of claim 1, wherein at least a portion of the heating member is provided in a substantially straight line configuration.

8. The smoking article of claim 1, wherein a maximum heating temperature of the heating member is about 150 degrees Celsius to about 250 degrees Celsius.

9. The smoking article of claim 1, wherein the disposable aerosol forming substance is a disposable cigarette.

10. The smoking article of claim 9, wherein the heating member is present on the heating projection along a segment having a length of about 75% to about 85% of a length of the disposable aerosol forming substance.

11. The smoking article of claim 9, wherein the heating projection projects through the disposable aerosol forming substance of the disposable cigarette so that the heating member is in direct contact with at least a portion of the disposable aerosol forming substance.

12. The smoking article of claim 1, wherein the housing comprises one or more apertures for allowing entrance of ambient air into an interior of the receiving chamber.

13. The smoking article of claim 1, wherein the housing comprises a first housing section at the proximal end and a second housing section at the distal end, wherein the first housing section and the second housing section are removably attached through frictional engagement.

14. The smoking article of claim 13, wherein the first housing section comprises a plurality of detents and the second housing section comprises a plurality of projections, the detents and projections configured to engage each other to facilitate frictional engagement of the first housing section and the second housing section.

15. The smoking article of claim 13, further comprising a mouth end fluidly coupled with the disposable aerosol forming substance, wherein, in use, a user draws on the mouth end and ambient air is drawn into one or more openings in the first housing section, through one or more apertures in a wall of the receiving chamber and into an interior of the receiving chamber, and through the disposable aerosol forming substance such that aerosol released from heating the disposable aerosol forming substance mixes with the drawn ambient air and is drawn into a user'"'"'s mouth.

16. The smoking article of claim 13, further comprising a disposable cigarette comprising the disposable aerosol forming substance, wherein a first portion of the disposable cigarette is tensioned within the first housing section and a second portion of the disposable cigarette extends beyond the proximal end of the housing.

17. The smoking article of claim 9, further comprising an air passageway disposed between an external wall of the housing and an external wrapping of the cigarette.

18. A system comprising the smoking article of claim 1 and a hard case configured to store and charge the smoking article.

19. A smoking article for receiving a disposable aerosol forming substance, the smoking article comprising:

a housing having a proximal end for receiving the disposable aerosol forming substance and an opposite distal end;

a power source arranged within the housing adjacent to the distal end;

a receiving chamber formed at the proximal end of the housing and having an opening for receiving the disposable aerosol forming substance;

a heating projection extending at least partially in the receiving chamber towards the proximal end of the housing and terminating at a free end, the heating projection comprising;

a heating member comprising an electrically resistive metal; and

an electrical connector for providing a flow of electricity to the heating member for heating the heating member; and

a disposable cigarette comprising a disposable aerosol forming substance,

wherein the heating projection projects through the disposable aerosol forming substance of the disposable cigarette so that the heating member is in direct contact with at least a portion of the disposable aerosol forming substance.

20. The smoking article of claim 19, further comprising a pushbutton, wherein in response to the pushbutton being manually actuated by a user, a flow of electrical current to the heating member is initiated.

21. The smoking article of claim 19, further comprising an indicator, wherein in response to activation of the smoking article, the indicator is turned on.

22. The smoking article of claim 19, wherein the heating member is a linear array of electrically resistive metal arranged on the heating projection.

23. The smoking article of claim 19, wherein the heating projection is formed of an electrically non-conductive material.

24. The smoking article of claim 19, wherein the heating projection is formed of a thermal insulator.

25. The smoking article of claim 19, wherein at least a portion of the heating member is provided in a substantially straight line configuration.

26. The smoking article of claim 19, wherein a maximum heating temperature of the heating member is about 150 degrees Celsius to about 250 degrees Celsius.

27. The smoking article of claim 19, wherein the heating member is present on the heating projection along a segment having a length of about 75% to about 85% of a length of the disposable aerosol forming substance.

28. The smoking article of claim 19, wherein the housing comprises one or more apertures for allowing entrance of ambient air into an interior of the receiving chamber.

29. The smoking article of claim 19, further comprising a control circuit positioned within the housing between the power source and the heating projection and connecting the heating member of the heating projection to the power source.

30. The smoking article of claim 19, wherein the disposable aerosol forming substance comprises a tobacco-derived material.