# US 12,213,518 B2 · Method of making E-vaping device with insert

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- Number: US 12,213,518 B2
- Document ID: US12213518B2
- Status: Granted
- Kind: B2
- Application number: 17/707,006
- Filed: 2022-03-29
- Published: 2022-07-14
- Granted: 2025-02-04
- Earliest claimed: 2018-09-07
- Assignees: Altria Client Services LLC
- Applicants: Altria Client Services LLC
- Inventors: Munmaya K. Mishra; Danielle Crawford; Dwight David Williams; Eric Hawes; Terry Bache; Raymond W. Lau; Shaoyong Yu
- Web page: https://patentgrep.com/patent/US12213518B2

## CPC

- A24F 40/30: Devices using two or more structurally separated inhalable precursors, e.g. using two liquid precursors in two cartridges
- A24F 40/40: Constructional details, e.g. connection of cartridges and battery parts
- A24B 15/16: of tobacco substitutes
- A24B 15/167: in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes
- A24D 1/14: Tobacco cartridges for pipes
- A24D 3/10: of cellulose or cellulose derivatives
- A24F 7/04: with smoke filters
- A24F 40/10: Devices using liquid inhalable precursors
- A24F 40/42: Cartridges or containers for inhalable precursors
- A24D 3/17: Filters specially adapted for simulated smoking devices
- A24F 40/485: Valves; Apertures
- A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06)
- A24B: MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24D: CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES

## Abstract

The method including providing a filler material that is water insoluble, the providing provides the filler material with more than 98% alpha-cellulose, 0.01% to less than 2% ash and a remainder hemicellulose, infusing at least one first consumable within the filler material and inserting a matrix within at least one first containing structure to form an insert, the matrix including the filler material.

## Claims

### Claim 1

A method, comprising:
providing a filler material that is water insoluble, the providing provides the filler material with more than 98% alpha-cellulose, 0.01% to less than 2% ash and a remainder hemicellulose;
infusing at least one first consumable within the filler material; and
inserting a matrix within at least one first containing structure to form an insert, the matrix including the filler material.

### Claim 2 (depends on 1)

The method of claim 1, further comprising:
shredding strands of the filler material prior to the inserting, the shredded strands defining interstices within the matrix.

### Claim 3 (depends on 1)

The method of claim 1, wherein the infusing infuses the at least one first consumable which includes at least one of nicotine, at least one first flavorant, at least one first pre-vapor formulation, or combinations thereof.

### Claim 4 (depends on 1)

The method of claim 1, wherein the inserting inserts the matrix so that the at least one first containing structure contacts at least side surfaces of the matrix.

### Claim 5 (depends on 1)

The method of claim 1, wherein the providing provides the filler material to include a non-tobacco material that does not include material from tobacco.

### Claim 6 (depends on 1)

The method of claim 1, wherein the providing provides the filler material to include tobacco.

### Claim 7 (depends on 1)

The method of claim 1, wherein the inserting inserts the matrix so that the at least one first containing structure is wrapped around the matrix in a longitudinal direction, and at least one end of the matrix is not wrapped by the at least one first containing structure.

### Claim 8 (depends on 1)

The method of claim 1, wherein the inserting inserts the matrix so that the at least one first containing structure is wrapped around the matrix in a longitudinal direction, and at least two ends of the matrix are not wrapped by the at least one first containing structure.

### Claim 9 (depends on 1)

The method of claim 1, wherein the inserting inserts the matrix so that the at least one first containing structure is wrapped around the matrix.

### Claim 10 (depends on 1)

The method of claim 1, further comprising:
first connecting a filter to the matrix to form the insert.

### Claim 11 (depends on 10)

The method of claim 10, wherein the first connecting connects the filter to the matrix so that the filter is spaced apart from the matrix within the insert.

### Claim 12 (depends on 10)

The method of claim 10, further comprising:
second connecting a flow restrictor to the filter and the matrix to form the insert, the flow restrictor including walls that reduce a cross-sectional flow area through the flow restrictor, the flow restrictor being between the filter and the matrix within the insert.

### Claim 13 (depends on 10)

The method of claim 10, further comprising:
second connecting a flow restrictor to the filter and the matrix to form the insert, the flow restrictor including walls that reduce a cross-sectional flow area through the flow restrictor, the flow restrictor being between the filter and the matrix within the insert, the insert defining an internal void space between the walls of the flow restrictor and the filter and between the walls of the flow restrictor and the matrix.

### Claim 14 (depends on 12)

The method of claim 12, wherein the first connecting and the second connecting connects the filter and the flow restrictor to the matrix by wrapping the at least one first containing structure around the matrix, the filter and the flow restrictor.

### Claim 15 (depends on 1)

The method of claim 1, further comprising:
first defining an airflow passage within at least one first section;
second defining a first reservoir within the at least one first section, the first reservoir being configured to contain at least one second pre-vapor formulation;
first configuring a heater to be in communication with the first reservoir and the airflow passage; and
second configuring the insert to be in selective communication with the airflow passage at a location downstream of the heater.

### Claim 16 (depends on 15)

The method of claim 15, wherein the second configuring configures the insert to be selectively removable from an end of the at least one first section.

### Claim 17 (depends on 15)

The method of claim 15, further comprising:
first connecting a filter to the matrix to form the insert,
wherein the second configuring configures the insert to be selectively inserted into a distal end of the at least one first section to cause the filter to extend from the at least one first section.

### Claim 18 (depends on 15)

The method of claim 15, further comprising:
first connecting a filter to the matrix to form the insert,
wherein the second configuring configures the insert to be selectively inserted into a distal end of the at least one first section to cause the filter to extend from the at least one first section.

### Claim 19 (depends on 15)

The method of claim 15, further comprising:
electrically connecting a control system to the heater;
third configuring the control system to detect at least one first parameter and send an electrical current to the heater to at least partially vaporize the at least one second pre-vapor formulation based on the at least one first parameter, the at least one first parameter being at least one of a resistance of the heater, a temperature of the heater, a draw of air in the airflow passage, or a combination thereof.

### Claim 20 (depends on 15)

The method of claim 15, further comprising:
third defining a second reservoir within the at least one first section, the second reservoir being configured to contain at least one second consumable; and
fifth configuring the second reservoir to communicate the at least one second consumable to the matrix, the at least one second consumable being the same as, or different than, the at least one first consumable.

### Claim 21 (depends on 20)

The method of claim 20, wherein the fifth configuring configures such that the at least one second consumable includes at least one first flavorant.