Design and application of a multi-chamber cartridge including a hydrogel formulation

Patent metadata

Field	Value
Publication number	US-2018263291-A1
Application number	US-201815983483-A
Country	US
Kind code	A1
Filing date	May 18, 2018
Priority date	Oct 12, 2016
Publication date	Sep 20, 2018
Grant date	—

Abstract

An e-vaping device having a cartridge including an outer container extending in a longitudinal direction, a conduit within the outer container, a storage portion including pre-vapor formulation ingredients, the storage portion being between the outer container and the conduit and including a plurality of chambers, a plurality of wicks, each of the wicks being in communication with each of the chambers and the conduit and being configured to deliver one or more ingredients in each of the chambers to the conduit, and a coil heater located in the chimney and operatively coupled to each of the wicks. The e-vaping device also includes a power supply source coupled to the cartridge, the power supply source is configured to heat the wicks to vaporize ingredients located in respective chambers and generate a vapor corresponding to each of the vaporized ingredients.

First claim

What is claimed is:

1 . A vapor precursor for a vaping device, the vapor precursor comprising:
a gel; nicotine; at least one acid; and a vapor former; wherein at least one of the nicotine, the at least one acid or the vapor former are mixed with the gel.

2 . The vapor precursor of claim 1 , wherein the nicotine, the at least one acid or the vapor former are mixed with the gel.

3 . The vapor precursor of claim 1 , wherein the gel comprises at least one of a biopolymer or a bio-derived polymer.

4 . The vapor precursor of claim 1 , wherein the gel is a hydrogel.

5 . The vapor precursor of claim 1 , wherein a rate of evaporation of the vapor precursor is lower than when the gel is not part of the vapor precursor.

6 . The vapor precursor of claim 1 , wherein a degree of mixing of the nicotine, at least one acid and vapor former is lower than when the gel is not part of the vapor precursor.

7 . The vapor precursor of claim 1 , wherein a stability of the nicotine, of the at least one acid and of the vapor former is greater than when the gel is not part of the vapor precursor.

8 . The vapor precursor of claim 1 , wherein a concentration of the at least one acid in the vapor precursor is less than 2%.

9 . The vapor precursor of claim 1 , wherein a concentration of the nicotine is less than 5%.

10 . The vapor precursor of claim 1 , further comprising at least one of a flavorant or an aroma, at least one of the flavorant or the aroma being mixed with the gel.

Assignees

• Altria Client Services Llc

Inventors

• Yu Shaoyong
• Mishra Munmaya K

Classifications

• A24F40/44

  Wicks · CPC title

• H05B1/0244

  Heating of fluids (H05B1/0247 takes precedence) · CPC title

• F22B1/285

  the water being fed by a pump to the reservoirs · CPC title

• H05B2203/021

  Heaters specially adapted for heating liquids · CPC title

• B65D25/04

  Partitions · CPC title