Capsules with internal channels, heat-not-burn (HNB) aerosol-generating devices, and methods of generating an aerosol

Patent metadata

Field	Value
Publication number	US-12557844-B2
Application number	US-202418667180-A
Country	US
Kind code	B2
Filing date	May 17, 2024
Priority date	Jun 23, 2020
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

Abstract

A capsule for an aerosol-generating device may include a housing defining inlet openings, outlet openings, and internal channels between the inlet openings and the outlet openings. The internal channels are configured to hold an aerosol-forming substrate. The housing is configured to facilitate a heating of the aerosol-forming substrate via conduction and/or convection so as to generate an aerosol.

First claim

The invention claimed is:

1 . A capsule for an aerosol-generating device, comprising:
a housing defining inlet openings, outlet openings, and internal channels between the inlet openings and the outlet openings, the housing including a corrugated structure and a conductive cover, the corrugated structure with the conductive cover defining the internal channels, the internal channels configured to hold an aerosol-forming substrate between the conductive cover and the corrugated structure in a direction perpendicular to a longitudinal axis of the capsule.

2 . The capsule of claim 1 , wherein the inlet openings are configured to permit air to enter the capsule, and the outlet openings are configured to permit aerosol to exit the capsule.

3 . The capsule of claim 1 , wherein the internal channels are separate and independent conduits.

4 . The capsule of claim 1 , wherein the housing includes a body section, a first end cap, and a second end cap.

5 . The capsule of claim 4 , wherein the first end cap is secured to an upstream end of the body section, and the second end cap is secured to a downstream end of the body section.

6 . The capsule of claim 4 , wherein the body section defines the internal channels, the first end cap defines the inlet openings, and the second end cap defines the outlet openings.

7 . The capsule of claim 6 , wherein the first end cap and the second end cap are configured to engage with the body section such that each of the inlet openings of the first end cap is in fluidic communication with a corresponding outlet opening of the second end cap via a corresponding internal channel of the body section.

8 . A capsule for an aerosol-generating device, comprising:
a housing defining inlet openings, outlet openings, and internal channels between the inlet openings and the outlet openings, the internal channels configured to hold an aerosol-forming substrate, the housing including a corrugated structure and a conductive cover, the corrugated structure with the conductive cover defining the internal channels, wherein
the housing includes a body section, a first end cap, and a second end cap,
the body section defines the internal channels, the first end cap defines the inlet openings, and the second end cap defines the outlet openings,
the first end cap and the second end cap are configured to engage with the body section such that each of the inlet openings of the first end cap is in fluidic communication with a corresponding outlet opening of the second end cap via a corresponding internal channel of the body section,
the first end cap includes first mating members extending into the internal channels, and
the second end cap includes second mating members extending into the internal channels.

9 . The capsule of claim 8 , wherein the second end cap include a number of first mating members different from a number of internal channels.

10 . The capsule of claim 4 , wherein a length of the body section defines a length of the capsule.

11 . The capsule of claim 1 , wherein the corrugated structure has a portion with a cross-section resembling a trapezoidal wave.

12 . The capsule of claim 1 , wherein the conductive cover is in a form of a box sleeve.

13 . The capsule of claim 1 , wherein the conductive cover is made of a metal.

14 . The capsule of claim 13 , wherein the metal includes aluminum.

15 . The capsule of claim 1 , wherein the housing is configured such that the internal channels extend along a longest dimension of the housing.

16 . The capsule of claim 1 , wherein the housing has a length, a width, and a thickness, the length is greater than the width, the width is greater than the thickness, and the internal channels extend in a direction of the length.

17 . The capsule of claim 1 , wherein the aerosol-forming substrate includes a plant material.

18 . The capsule of claim 17 , wherein the plant material includes tobacco.

19 . The capsule of claim 1 , wherein the housing has a rectangular shape.

20 . An aerosol-generating device, comprising:
a device body including,
a first side surface partially defining an opening to a slot configured to receive a capsule therein,
a second side surface opposite the first side surface in a first horizontal direction, the second side surface being a closed structure,
a third side surface defining an air inlet,
a fourth side surface defining an outlet, the air inlet and the outlet in fluidic communication with the slot, the third side surface and the fourth side surface spaced apart in a second horizontal direction different from the first horizontal direction, and
a heating assembly including a first heater and a second heater, the first heater, the second heater, and the closed structure defining the slot between the first heater and the second heater in a third direction, the first heater and the second heater configured to heat the capsule via conduction in response to the capsule being received therein.

Assignees

• Altria Client Services Llc

Inventors

• Blackmon Zack
• Good Patrick
• Sundar Rangaraj S
• Keen Jarrett
• Hawes Eric
• Hourmand Yannick
• Gallagher Niall

Classifications

• A61M2205/36

  related to heating or cooling · CPC title

• A61M15/009

  using medicine packages with incorporated spraying means, e.g. aerosol cans (pocket atomiser of the injector type A61M11/08) · CPC title

• A24F40/20

  Devices using solid inhalable precursors · CPC title

• A24F40/46

  Shape or structure of electric heating means · CPC title

• A24F40/48

  Fluid transfer means, e.g. pumps · CPC title