IP Library Granted Patent US 11,278,058
Granted Patent B2
US 11,278,058 · App. 16/643,490 · Granted Mar 22, 2022

Wick for vaporizer device

Inventors: Ariel Atkins (San Francisco, CA); Adam Bowen (San Mateo, CA); Esteban Leon Duque (Berkeley, CA)
Assignee: JUUL LABS, INC.
A24F40/44A24F40/42A24F40/485A24F40/10A24F40/46
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Quick Facts
Patent No.
US 11,278,058
App. No.
16/643,490
Granted
Mar 22, 2022
Kind
B2
Abstract

A vaporization device includes a wick with improved aerosol production properties relative to a traditional wick, for example one formed of silica fiberglass cord. According to some aspects, the wick is formed of discontinuous fibers that are not packed together and that have varying orientations, creating a plurality of voids, or spaces, between the various fibers and along the length of the wick. This design of voids along the length of the wick allows for rapid wick saturation and air exchange. Because of this, a user can take successive long puffs without noticing much difference in vapor production, as the liquid quickly (e.g., within seconds) replenishes in the wick.

Claims (30)

1. A cartridge for a vaporization device, the cartridge comprising:

a mouthpiece;

a tank configured to hold a vaporizable material;

a wick configured to draw the vaporizable material from the tank to a vaporization region, the wick having a length and being formed from a plurality of discontinuous glass filaments creating one or more voids along the length, wherein the wick comprises a glass wick characterized by a TEX value of between 400 and 1000; and

a heating element disposed near the vaporization region and configured to heat the vaporizable material drawn from the tank by the wick.

2. The cartridge of claim 1 , wherein the heating element at least partially encircles at least a portion of the wick.

3. The cartridge of claim 1 , further comprising an air inlet passage.

4. The cartridge of claim 3 , wherein the air inlet passage is configured to direct a flow of air over the wick such that when the heating element is activated, the vaporizable material drawn by the wick into the vaporization region is evaporated into the flow of air.

5. The cartridge of claim 4 , wherein the wick and the heating element are configured to cause aerosolization of the vaporizable material.

6. The cartridge of claim 1 , wherein the plurality of discontinuous glass filaments are of varying orientations.

7. The cartridge of claim 6 , wherein the plurality of discontinuous glass filaments are not packed together.

8. The cartridge of claim 1 , wherein the glass wick is characterized by the TEX value of 660.

9. The cartridge of claim 1 , wherein the wick is characterized by at least a 5% volume of void space to a total volume of the wick.

10. The cartridge of claim 1 , wherein the wick comprises a heat-vaporizable coating.

11. The cartridge of claim 1 , wherein the heating element is disposed between a pair of plates.

12. The cartridge of claim 1 , wherein the mouthpiece is disposed at a first end of a body of the cartridge and the heating element is disposed at a second end of the body, opposite the first end.

13. A vaporization device comprising:

a tank configured to hold a vaporizable material;

a wick configured to draw the vaporizable material from the tank to a vaporization region, the wick having a length and being formed of one or more discontinuous glass fibers, wherein the wick comprises a glass wick characterized by a TEX value of between 400 and 1000; and

a heating element disposed near the vaporization region, the heating element configured to generate heat, a portion of the heat being transferred to the vaporizable material to aerosolize the vaporizable material.

14. The vaporization device in accordance with claim 13 , wherein the wick includes an inner wick material and an outer jacket that at least partially surrounds the inner wick material.

15. A method comprising:

drawing, through a wick, a vaporizable material from a tank of a vaporization device to a vaporization region, the wick being formed from a plurality of discontinuous glass filaments creating a plurality of voids along its length, wherein the wick comprises a glass wick characterized by a TEX value of between 400 and 1000;

heating the vaporization region with a heating element disposed near the vaporization region to cause vaporization of the vaporizable material; and

causing the vaporized vaporizable material to be entrained in a flow of air to a mouthpiece of the vaporization device.

16. The cartridge of claim 14 , wherein the outer jacket includes a fibrous material or glass.

17. The cartridge of claim 1 , wherein the wick includes an inner wick material and an outer jacket that at least partially surrounds the inner wick material.

18. The cartridge of claim 17 , wherein the outer jacket includes a fibrous material or glass.

19. The cartridge of claim 18 , wherein the fibrous material is cotton or hemp.

20. The cartridge of claim 17 , wherein the outer jacket can be formed as a continuous sheath or a matrix of cross-strands.

Assignments (10)
RELEASE OF SECURITY INTEREST Recorded Oct 17, 2024
From: ALTER DOMUS (US) LLC
To: JUUL LABS, INC.; VMR PRODUCTS LLC; ENVENIO INC.
Reel/Frame 069185/0228 →
SECURITY INTEREST Recorded Jul 11, 2023
From: JUUL LABS, INC.; VMR PRODUCTS LLC; ENVENIO INC.
To: ALTER DOMUS (US) LLC
Reel/Frame 064252/0225 →
CORRECTIVE ASSIGNMENT TO CORRECT THE THE ASSIGNEE ADDRESS PREVIOUSLY RECORDED AT REEL: 062114 FRAME: 0196. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Dec 23, 2022
From: JUUL LABS, INC.
To: JLI NATIONAL SETTLEMENT TRUST
Reel/Frame 062214/0142 →
SECURITY INTEREST Recorded Dec 10, 2022
From: JUUL LABS, INC.
To: JLI NATIONAL SETTLEMENT TRUST
Reel/Frame 062114/0195 →
RELEASE OF SECURITY INTEREST Recorded Oct 2, 2022
From: CORTLAND CAPITAL MARKET SERVICES LLC
To: JUUL LABS, INC.
Reel/Frame 061588/0176 →
SECURITY INTEREST Recorded Sep 30, 2022
From: JUUL LABS, INC.
To: ALTER DOMUS (US) LLC
Reel/Frame 061578/0865 →
RELEASE OF SECURITY INTEREST Recorded Jun 28, 2022
From: MUFG UNION BANK, N.A.
To: JUUL LABS, INC.
Reel/Frame 060446/0261 →
PATENT SECURITY AGREEMENT Recorded Aug 18, 2020
From: JUUL LABS, INC.
To: MUFG UNION BANK, N.A.
Reel/Frame 053535/0433 →
SECURITY INTEREST Recorded Aug 6, 2020
From: JUUL LABS, INC.
To: CORTLAND CAPITAL MARKET SERVICES LLC
Reel/Frame 053418/0664 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 28, 2020
From: ATKINS, ARIEL; BOWEN, ADAM; LEON DUQUE, ESTEBAN
To: JUUL LABS, INC.
Reel/Frame 051968/0820 →