Electronic cigarette with liquid reservoir

• US 8,707,965 B2
• Filed: 07/31/2013
• Issued: 04/29/2014
• Est. Priority Date: 06/28/2011
• Status: Active Grant

• Current Assignee: JUUL Labs, Inc. (PAX Labs, Inc.)
• Original Assignee: The Newton Living Trust 2009
• Inventors: Newton, Kyle D.
• Primary Examiner(s): Crispino, Richard
• Assistant Examiner(s): Yaary, Eric
• Application Number:
  US13/955,153
• Publication Number:
  US 20130312776A1
• Time in Patent Office: 272 Days
• Field of Search: None
• US Class Current: 131/273
• CPC Class Codes: A24F 40/10 Devices using liquid inhalable precursors
• CPC Class Codes: A24F 40/42 Cartridges or containers for inhalable precursors
• CPC Class Codes: A24F 40/44 Wicks
• CPC Class Codes: A24F 40/485 Valves; Apertures
• CPC Class Codes: A61M 15/06 Inhaling appliances shaped like cigars, cigarettes or pipes

Abstract

An electronic cigarette including an elongated housing that has a mouthpiece with an aerosol outlet, and an atomizer disposed within an atomizing chamber. The atomizer selectively generates an aerosol of the liquid in response to suction pressure at the aerosol outlet. The atomizing chamber has an air inlet, an atomizer outlet coupled to the aerosol outlet, and a first wick aperture. A liquid reservoir is disposed within the elongated housing, which is sealably separated from the atomizing chamber. A wick disposed through the first wick aperture between the liquid reservoir and the atomizing chamber and it is configured to transfer the liquid by capillarity from the liquid reservoir to the atomizer.

Claims

1. An electronic cigarette cartridge apparatus, comprising:

an elongated housing having a mouthpiece with an aerosol outlet;

an atomizer disposed within an atomizing chamber, and operable to selectively generate an aerosol of the liquid in response to electric current flowing therethrough;

said atomizing chamber having an air inlet, an atomizer outlet coupled to said aerosol outlet, and a first wick aperture;

a liquid reservoir disposed within said elongated housing and separated from said atomizing chamber, and

a wick disposed within said atomizer and extending to an outer periphery of said atomizing chamber and configured to transfer the liquid by capillarity from said liquid reservoir, through said wick aperture, through said wick, and into to said atomizer.

2. The apparatus of claim 1, further comprising:

an inlet vent formed on the exterior of said elongated housing and coupled to deliver air to said atomizing chamber air inlet.

3. The apparatus of claim 2, and wherein said inlet vent is coupled to said atomizing chamber air inlet by a conduit.

4. The apparatus of claim 3, and wherein said conduit sealably passes through said liquid reservoir.

5. The apparatus of claim 1, and wherein said atomizer outlet and said aerosol outlet are coupled by a chimney.

6. The apparatus of claim 5, and wherein said chimney sealably passes through said liquid reservoir.

7. The apparatus of claim 1, and wherein said atomizer is a resistive heating element.

8. The apparatus of claim 1, and wherein said atomizer has a tubular form defining an open central passage.

9. The apparatus of claim 8, and wherein said wick passes through said open central passage.

10. The apparatus of claim 1, and wherein said wick is fabricated as a bundle of heat resistant fibers.

11. The apparatus of claim 10, and wherein said bundle of heat resistant fibers is fiberglass.

12. The apparatus of claim 10, and wherein said bundle of heat resistant fibers is fabricated from a material selected from;

aramid, fluorocarbon, sulfide, melamine, polyimide, carbon, and glass.

13. The apparatus of claim 1, and wherein said liquid reservoir is formed as a cavity between the interior of said elongated housing and said atomizing chamber.

14. The apparatus of claim 1, and wherein said liquid reservoir includes an external access opening, for enabling addition of liquid into said liquid reservoir.

15. The apparatus of claim 14, and wherein said external access opening is a removable mouthpiece.