Wickless vaporizing devices and methods

Patent metadata

Field	Value
Publication number	US-11154669-B2
Application number	US-201615743274-A
Country	US
Kind code	B2
Filing date	Jul 11, 2016
Priority date	Jul 10, 2015
Publication date	Oct 26, 2021
Grant date	Oct 26, 2021

Abstract

Deformable valves and atomizer designs for a vaporizer (e.g., electronic cigarette). The vaporizer may be used for vaporization of liquid and/or organic material. The vaporizer may enable enhanced flow control of fluid and may generate high quality and quantity of vapor efficiently. In some instances, flow path of the vaporizer may allow bulk fluid flow, e.g., in contrast to capillary flow, to deliver fluid to a vicinity of the vaporizer. In some instances, the vaporizer may utilize improved atomizer designs for vaporizing devices, where said designs can be configured optionally, with various embodiments of a breath-modulating deformable valve.

First claim

What is claimed is:

1. A vaporizer comprising:
an elongate body;
a reservoir configured to contain a vaporizable fluid;
an atomizer within the elongate body, the atomizer configured to heat the vaporizable fluid to generate an aerosol, the atomizer comprising a heating element;
a tube extending between the reservoir and the heating element, the tube configured to permit a bulk flow of the vaporizable fluid from the reservoir to the heating element;
a flow modulator configured to modulate the bulk flow of the vaporizable fluid through the tube from the reservoir to the heating element;
a mouthpiece;
a draw sensor configured to detect a user drawing on the mouthpiece;
a controller configured to control the flow modulator to permit the bulk flow of the vaporizable fluid when the user is drawing on the mouthpiece;
a cartridge; and
a battery unit, wherein the cartridge is configured to removably couple with the battery unit, and wherein the reservoir is part of the cartridge and the battery unit comprises the atomizer.

2. The vaporizer of claim 1 , wherein a primary means of vaporizable fluid transportation through the tube is not via capillary action.

3. The vaporizer of claim 1 , wherein the flow modulator comprises a valve.

4. The vaporizer of claim 1 , wherein the flow modulator comprises a deformer.

5. The vaporizer of claim 4 wherein the deformer is elastic.

6. The vaporizer of claim 4 wherein the deformer comprises a spring.

7. The vaporizer of claim 4 wherein the deformer comprises an elastomeric membrane.

8. The vaporizer of claim 4 wherein the deformer comprises bi-metallic composite configured to curl or flex along one or more axis in response to a stimuli.

9. The vaporizer of claim 8 wherein the stimuli is heat.

10. The vaporizer of claim 4 wherein a deformation of the deformer causes the flow modulator to open and close.

11. The vaporizer of claim 4 wherein the deformer comprises a resting state.

12. The vaporizer of claim 11 wherein in the resting state, the deformer prevents flow of the vaporizable fluid through the tube.

13. The vaporizer of claim 1 wherein the atomizer is wickless.

14. The vaporizer of claim 1 wherein the heating element includes a coil.

15. The vaporizer of claim 1 wherein the heating element is at least partially wound around the tube.

16. The vaporizer of claim 1 wherein the heating element is a resistive heater.

17. The vaporizer of claim 1 further comprising a chamber configured to permit vapor to pass therethrough for inhalation by the user.

18. The vaporizer of claim 17 , wherein a configuration of the flow modulator depends on a degree of vacuum applied to the chamber.

19. The vaporizer of claim 1 wherein the tube comprises one or more vent slots.

20. The vaporizer of claim 19 wherein the one or more vent slots are configured to permit the vaporizable fluid to flow therethrough.

21. The vaporizer of claim 1 wherein the tube includes a diffusor configured to mix vapor and air.

22. The vaporizer of claim 17 wherein the tube includes a baffle configured to release vapor into the chamber but retain an unvaporized portion of the vaporizable fluid within the atomizer.

23. The vaporizer of claim 17 wherein the atomizer comprises a baffle configured to release the vapor within the chamber but retain an unvaporized portion of the vaporizable fluid within the atomizer.

24. The vaporizer of claim 22 wherein the baffle comprises one or more through-holes.

25. The vaporizer of claim 24 wherein the through-holes are equal to or less than about 0.01 inches.

26. The vaporizer of claim 25 wherein the through-holes are equal to or less than about 0.006 inches.

27. The vaporizer of claim 1 wherein the tube comprises a porous filter configured to release vapor for inhalation but retain an unvaporized portion of the vaporizable fluid within the atomizer.

28. The vaporizer of claim 1 wherein the atomizer comprises a porous filter configured to release vapor for inhalation but retain an unvaporized portion of the vaporizable fluid within the atomizer.

29. The vaporizer of claim 27 wherein the porous filter comprises one or more pores.

30. The vaporizer of claim 29 wherein a substantial portion of the one or more pores are equal to or less than about 0.01 inches.

31. The vaporizer of claim 29 wherein an average size of the one or more pores are equal to or less than about 0.01 inches.

32. The vaporizer of claim 29 wherein a substantial portion of the one or more pores are equal to or less than about 0.006 inches.

33. The vaporizer of claim 29 wherein an average size of the one or more pores are equal to or less than about 0.006 inches.

34. The vaporizer of claim 1 further comprising one or more processors configured to activate the atomizer in response to an inhalation of a user.

35. The vaporizer of claim 1 further comprising a fluid pump configured to actively pump the vaporizable fluid through the tube.

36. The vaporizer of claim 1 further comprising a venturi tube configured to create an amplified vacuum within a throat of the venturi tube in response to an inhalation of a user.

37. A method of providing an inhalable aerosol, the method comprising:
sensing a user draw through a mouthpiece of a vaporizer apparatus;
controlling, via a flow modulator, flow of a vaporizable fluid from a reservoir of the vaporizer apparatus through a tube to a heater;
heating, based on sensing the user draw, the heater to vaporize the vaporizable fluid to generate the inhalable aerosol; and
providing through the mouthpiece, the inhalable aerosol into the user draw, wherein the reservoir is part of a removable cartridge configured to couple with a battery unit that comprises the heater.

38. The method of claim 37 further comprising:
stopping flow through the tube by the flow modulator when the user is no longer drawing through the mouthpiece.

Assignees

• Juul Labs Inc

Inventors

• Bowen Adam
• Atkins Ariel
• Gould Alexander J
• Schuler Carlos
• Ingebrethsen Bradley J

Classifications

• H05B1/02

  Automatic switching arrangements specially adapted to apparatus {; Control of heating devices} (thermally-actuated switches H01H37/00) · CPC title

• A61M15/06 Primary

  Inhaling appliances shaped like cigars, cigarettes or pipes · CPC title

• A61M11/04

  operated by the vapour pressure of the liquid to be sprayed or atomised {(air-humidification, e.g. "room humidifiers" F24F6/00)} · CPC title

• A24F40/51

  Arrangement of sensors · CPC title

• A24F40/50

  Control or monitoring · CPC title