ELECTRONIC VAPING DEVICE AND CARTRIDGE FOR ELECTRONIC VAPING DEVICE

• US 20170280767A1
• Filed: 03/29/2016
• Published: 10/05/2017
• Est. Priority Date: 03/29/2016
• Status: Active Grant

• Current Assignee: Altria Client Services LLC (Altria Group, Inc.)
• Original Assignee: Barry S. Smith, Christopher S. Tucker, San Li
• Inventors: LI, San, SMITH, Barry S., TUCKER, Christopher S.
• Granted Patent: US 10,433,581 B2
• Time in Patent Office: Days
• CPC Class Codes: A24F 1/32 Selection of materials for pipes
• CPC Class Codes: A24F 40/10 Devices using liquid inhalable precursors
• CPC Class Codes: A24F 40/485 Valves; Apertures
• CPC Class Codes: H05B 2203/021 Heaters specially adapted for heating liquids
• CPC Class Codes: H05B 3/44 heating conductor arranged within rods or tubes of insulating material

Abstract

A cartridge for an electronic vaping device may include at least one inner tube along a length of the cartridge. The inner tube defines a passageway. A heating element is within the inner tube and has a longitudinal axis. A jacket at least partially surrounds the heating element. The tube segment is positioned between the heating element and the inner tube along the longitudinal axis of the heating element.

Claims

1. An electronic vaping device, comprising:

a power section; and

a cartridge including,

at least one inner tube along a length of the cartridge, the at least one inner tube defining a passageway,

a heating element within the at least one inner tube, the heating element having a longitudinal axis, and

a jacket at least partially surrounding the heating element along the longitudinal axis of the heating element.

2. The electronic vaping device as recited in claim 1, wherein the jacket is a section of a tube.

3. The electronic vaping device as recited in claim 2, wherein the jacket completely surrounds the heating element.

4. The electronic vaping e-vaping device as recited in claim 2, wherein the jacket comprises an inlet and an outlet that define an airflow path within the jacket, the air flow path being substantially transverse to the passageway.

5. The electronic vaping device as recited in claim 1, wherein the jacket comprises a heat insulator.

6. The electronic vaping device as recited in claim 5, wherein the heat insulator is air impermeable and comprises one of fiberglass and ceramic.

7. The electronic vaping device as recited in claim 1, wherein the jacket is configured to divert air flow directed toward the heating element.

8. The electronic vaping device as recited in claim 1, wherein the jacket comprises an air permeable mesh.

9. The electronic vaping device as recited in claim 1, further comprising:

a wick, the wick being in fluid communication with the passageway and at least a portion of the wick being within the jacket.

10. The electronic vaping device as recited in claim 9, wherein the wick is surrounded by the heating element.

11. The cartridge as recited in claim 1 further comprising a reservoir configured to contain a pre-vapor formulation.

12. A cartridge comprising:

at least one inner tube along a length of the cartridge, the at least one inner tube defining a passageway;

a heating element within the at least one inner tube, the heating element having a longitudinal axis; and

a jacket at least partially surrounding the heating element along the longitudinal axis of the heating element.

13. The cartridge as recited in claim 12, wherein the jacket is a section of a tube.

14. The cartridge as recited in claim 13, wherein the jacket completely surrounds the heating element.

15. The cartridge as recited in claim 13, wherein the jacket comprises an inlet and an outlet that define an airflow path within the jacket, the air flow path being substantially transverse to the passageway.

16. The cartridge as recited in claim 12, wherein the jacket comprises a heat insulator.

17. The cartridge as recited in claim 16, wherein the heat insulator is air impermeable and comprises one of fiberglass and ceramic.

18. The cartridge as recited in claim 12, wherein the jacket is configured to divert air flow directed toward the heating element.

19. The cartridge as recited in claim 18, wherein the jacket comprises an air permeable mesh.

20. The cartridge as recited in claim 12, further comprising:

a wick, the wick being in fluid communication with the passageway and at least a portion of the wick being within the jacket.

21. The cartridge as recited in claim 20, wherein the wick is surrounded by the heating element.

22. The cartridge as recited in claim 12 further comprising a reservoir configured to contain a pre-vapor formulation.