DEVICE FOR STORING AND VAPORIZING LIQUID MEDIA

• US 20160073692A1
• Filed: 09/17/2015
• Published: 03/17/2016
• Est. Priority Date: 09/17/2014
• Status: Active Grant

• Current Assignee: Fontem Ventures BV (Imperial Tobacco Group PLC)
• Original Assignee: Fontem Holdings 2 B.V.
• Inventors: Tittiger, Alex, Alarcon, Ramon, Rasmussen, Dennis
• Granted Patent: US 9,986,762 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A24F 40/10 Devices using liquid 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 40/44 Wicks
• CPC Class Codes: A24F 40/46 Shape or structure of electric heating means

Abstract

A device for storing and vaporizing liquid media can comprise an annular liquid media storage tank and a heater configured to vaporize liquid stored in the annular liquid media storage tank.

Claims

1. A device for storing and vaporizing liquid media, comprising the following:

an outer tube mounted around at least a portion of an inner tube, wherein the outer tube comprises an outer surface and an inner surface, wherein the inner tube comprises an inner surface defining an air path and an outer surface, and wherein an annular liquid media storage tank is defined between the outer surface of the inner tube and the inner surface of the outer tube;

a mouth piece connected to a proximal end of the inner tube and to the outer tube;

a heater coil casing defining a heater coil chamber;

a heater coil mounted at least partially within the heater coil casing; and

a wick that extends through a center of the heater coil and through a first port in a first wall of the heater coil casing and through a second port in a second wall of the heater coil casing, wherein a first end portion of the wick extends into a first individual recessed pocket in the annular liquid media storage tank, and wherein a second end portion of the wick extends into a second individual recessed pocket in the annular liquid media storage tank.

2. The device of claim 1, wherein the heater coil chamber comprises an upper heater coil housing further defining a housing air outlet connected with a distal end of the inner tube and a lower heater coil housing further defining a housing air inlet.

3. The device of claim 2, wherein the heater coil is mounted at least partially within the heater coil casing between the housing air outlet and the housing air inlet.

4. The device of claim 1, wherein the first and second individual recessed pockets of the annular liquid media storage tank are formed by an outer surface of the heater coil casing and the inner surface of the outer tube.

5. The device of claim 1, wherein the first port and the second port are diametrically opposed to one another.

6. The device of claim 1, wherein the first individual recessed pocket and the second individual recessed pocket extend distally.

7. The device of claim 1, wherein a distal end of the outer tube is connected with a battery connector.

8. The device of claim 7, wherein the battery connector comprises an annular outer surface that connects with the inner surface of the outer tube.

9. The device of claim 7, wherein:

an annular insulator grommet is inserted into an axial cylindrical opening of the battery connector; and

a center battery connect is inserted into an axial cylindrical opening of the insulator grommet.

10. The device of claim 9, wherein the center battery connect comprises an axial cylindrical opening through the center battery connect that is in fluid communication with the inner surface of the inner tube.

11. The device of claim 1, wherein the inner surface of the inner tube is frustoconical in shape.

12. A cartomizer for an electronic cigarette, comprising the following:

an outer tube mounted around at least a portion of an inner tube, wherein the outer tube comprises an outer surface and an inner surface, wherein the inner tube comprises an inner surface defining an air path and an outer surface, and wherein an annular liquid media storage tank is defined between the outer surface of the inner tube and the inner surface of the outer tube;

a mouth piece connected to a proximal end of the inner tube and to the outer tube;

a heater coil casing defining a heater coil chamber comprising (i) an upper heater coil housing further defining a housing air outlet connected with a distal end of the inner tube and (ii) a lower heater coil housing further defining a housing air inlet;

a heater coil mounted at least partially within the heater coil casing between the housing air outlet and the housing air inlet; and

a wick that extends through a center of the heater coil and through a first port in a first wall of the heater coil casing and through a second port in a second wall of the heater coil casing, wherein a first end portion of the wick extends into a first individual recessed pocket in the annular liquid media storage tank, and wherein a second end portion of the wick extends into a second individual recessed pocket in the annular liquid media storage tank.

13. The cartomizer of claim 12, wherein:

an outer surface of the heater coil casing adjacent to the ports is recessed to form the first individual recessed pocket and second individual recessed pocket; and

the first individual recessed pocket and second individual recessed pocket are located on diametrically opposed sides of the heater coil casing.

14. The cartomizer of claim 13, wherein the first individual recessed pocket and the second individual recessed pocket are holes in the heater coil casing that have a diameter greater than a diameter of the ports.

15. The cartomizer of claim 12, wherein the inner tube is a rigid tube permanently supported at the proximal end of the inner tube and the distal end of the inner tube.

16. The cartomizer of claim 12, further comprising an absorbent material disposed between the proximal end of the inner tube and the mouth piece, such that a gap exists between the proximal end of the inner tube and the absorbent material.

17. An electronic cigarette, comprising the following:

an outer tube comprising an outer surface and an inner surface;

an inner tube mounted within the outer tube, wherein the inner tube comprises an inner surface defining an air pathway, an outer surface, a proximal end, and a distal end;

an annular liquid media storage tank comprising an inner cylindrical wall and an outer cylindrical wall, wherein the inner cylindrical wall of the storage tank comprises at least a portion of the outer surface of the inner tube, and wherein the outer cylindrical wall of the storage tank comprises at least a portion of the inner surface of the outer tube;

a heater coil casing defining a heater coil chamber and comprising (i) an upper heater coil housing defining a housing air outlet connected with a distal end of the inner tube, wherein the distal end of the inner tube is inserted into the housing air outlet; and

(ii) a lower heater coil housing defining a housing air inlet;

a heater coil mounted between the housing air outlet and the housing air inlet;

a wick extending through a first port and a second port in a sidewall of the heater coil casing and into a recessed pocket of the storage tank;

a mouth piece connected with the outer tube and the proximal end of the inner tube; and

a battery connector comprising an outer surface connected with the inner surface of the outer tube.

18. The electronic cigarette of claim 17, wherein the battery connector is electrically connected with a first end of the coil and the center battery connect is electrically connected with a second end of the coil.

19. The electronic cigarette of claim 17, wherein:

an inner wall of the upper heater coil housing overlaps an outer wall of the lower heater coil housing; and

the wick extends into a recessed pocket that extends around a circumference of a base of the annular liquid media storage tank.

20. The electronic cigarette of claim 19, wherein the heater coil casing forms a recessed pocket lip, configured to retain liquid in the recessed pocket via surface tension.