# US 12,004,561 B2 · Shisha cartridge with gel

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- Number: US 12,004,561 B2
- Document ID: US12004561B2
- Status: Granted
- Kind: B2
- Application number: 16/973,881
- Filed: 2019-07-08
- Published: 2021-08-26
- Granted: 2024-06-11
- Earliest claimed: 2018-07-10
- Assignees: Philip Morris Products S.A.
- Applicants: Philip Morris Products S.A.
- Inventors: Johannes Petrus Maria Pijnenburg; Jean-Yves Vollmer; Ana Isabel Gonzalez Florez; Jakub Bialek; Sébastien Capelli
- Web page: https://patentgrep.com/patent/US12004561B2

## CPC

- A24F 40/42: Cartridges or containers for inhalable precursors
- A24B 15/167: in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes
- A24D 1/14: Tobacco cartridges for pipes
- A24F 1/30: Hookahs
- A24F 40/20: Devices using solid inhalable precursors
- 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

A shisha cartridge comprises a body defining a cavity and an internal cavity surface. The cartridge comprises an aerosol-forming substrate disposed in the cavity and comprises a layer of gel disposed in the cavity adjacent the internal cavity surface. As the cartridge is heated, the gel may improve aerosol formation.

## Claims

### Claim 1

A shisha cartridge comprising:
a body defining a cavity and an internal cavity surface;
an aerosol-forming substrate disposed in the cavity; and
a layer of gel, wherein the aerosol-forming substrate and the layer of gel are separate, distinct components;
wherein the layer of gel is disposed in the cavity adjacent the internal cavity surface and adjacent the aerosol-forming substrate.

### Claim 2 (depends on 1)

The shisha cartridge according to claim 1, wherein the gel comprises an aerosol former.

### Claim 3 (depends on 2)

The shisha cartridge according to claim 2, wherein the aerosol former comprises glycerine, propylene glycol, or a combination thereof.

### Claim 4 (depends on 1)

The shisha cartridge according to claim 1, wherein the gel comprises from 10 wt-% to 80 wt-% of an aerosol former.

### Claim 5 (depends on 1)

The shisha cartridge according to claim 1, wherein the gel comprises from 0.2 wt-% to 10 wt-% of a gelling agent.

### Claim 6 (depends on 1)

The shisha cartridge according to claim 1, wherein the gel is arranged to retain its gel morphology up to a temperature of at least 50° C.

### Claim 7 (depends on 1)

The shisha cartridge according to claim 1, wherein the gel is formulated such that when the gel reaches a temperature at which it loses its gel morphology, at least some of the compounds of the gel vaporize to form an aerosol.

### Claim 8 (depends on 1)

The shisha cartridge according to claim 1, wherein the gel comprises a gelling agent comprising agar, carrageenan, or a combination thereof.

### Claim 9 (depends on 1)

The shisha cartridge according to claim 1, wherein the gel comprises up to 75 wt-% of water.

### Claim 10 (depends on 1)

The shisha cartridge according to claim 1, wherein the gel is disposed along an internal side wall of the cavity, a bottom of the cavity, a top of the cavity, or a combination thereof.

### Claim 11 (depends on 1)

The shisha cartridge according to claim 1, wherein the internal cavity surface adjacent to which the gel is disposed comprises at least one aperture.

### Claim 12 (depends on 11)

The shisha cartridge according to claim 11, wherein the gel is disposed adjacent the bottom of the cavity, and the at least one aperture is in the bottom of the cavity.

### Claim 13 (depends on 1)

The shisha cartridge according to claim 1, wherein the gel has a surface area of 1 cm2 to 25 cm2.

### Claim 14 (depends on 1)

The shisha cartridge according to claim 1, wherein the gel has a thickness of 0.1 mm to 10 mm.

### Claim 15 (depends on 1)

The shisha cartridge according to claim 1 wherein the layer of gel lines at least a part of the cavity.

### Claim 16 (depends on 1)

The shisha cartridge according to claim 1, wherein the aerosol-forming substrate is a shisha substrate.

### Claim 17 (depends on 1)

The shisha cartridge according to claim 1, wherein the aerosol-forming substrate comprises tobacco.

### Claim 18 (depends on 1)

The shisha cartridge according to claim 1, wherein the aerosol-forming substrate comprises tobacco and molasses.

### Claim 19 (depends on 1)

The shisha cartridge according to claim 1, wherein the aerosol-forming substrate has a first time to first puff and the gel has a second time to first puff, wherein the second time to first puff is shorter than the first time to first puff.

### Claim 20 (depends on 1)

The shisha cartridge according to claim 1, wherein the layer of gel is disposed between the internal cavity surface and the aerosol-forming substrate.

### Claim 21 (depends on 1)

A shisha system comprising:
the shisha cartridge according to claim 1; and
a shisha device comprising:
a receptacle for receiving the cartridge;
a heating element for heating the aerosol-generating substrate when the cartridge is received in the receptacle of the shisha device;
a vessel having a liquid fill level and defining a head space above the liquid fill level;
an aerosol conduit for conveying aerosol from the receptacle to below the liquid fill level in the vessel; and
an outlet in communication with the head space.