Aerosol-generating device and extractor with shaped cavity

Patent metadata

Field	Value
Publication number	US-2025064126-A1
Application number	US-202318726835-A
Country	US
Kind code	A1
Filing date	Jan 12, 2023
Priority date	Jan 12, 2022
Publication date	Feb 27, 2025
Grant date	—

Abstract

An aerosol-generating device including a cavity configured to receive an aerosol-forming substrate is provided, the cavity having: a first end and an opposing second end, a length between the first end and the second end, and a cross-section perpendicular to the length, a perimeter of the cross-section of the cavity remaining substantially constant along the length of the cavity, and at least one of: a shape of the cross-section of the cavity varying along the length of the cavity, a surface area of the cross-section of the cavity varying along the length of the cavity, and a dimension of the cross-section of the cavity varying along the length of the cavity. An extractor for extracting an aerosol-forming substrate from the aerosol-generating device is also provided. An aerosol-generating system is also provided.

First claim

1 .- 15 . (canceled)

16 . An aerosol-generating device comprising a cavity configured to receive an aerosol-forming substrate,
wherein the cavity has:
a first end and an opposing second end,
a length between the first end and the second end, and
a cross-section perpendicular to the length,
wherein a perimeter of the cross-section of the cavity remains substantially constant along the length of the cavity, and wherein at least one of:
a shape of the cross-section of the cavity varies along the length of the cavity,
a surface area of the cross-section of the cavity varies along the length of the cavity, and
a dimension of the cross-section of the cavity varies along the length of the cavity.

17 . The aerosol-generating device according to claim 16 , wherein the dimension of the cross-section at the first end of the cavity is greater than the dimension of the cross-section at the second end of the cavity.

18 . The aerosol-generating device according to claim 16 , wherein the surface area of the cross-section of the cavity at the first end of the cavity is greater than the surface area of the cross-section of the cavity at the second end of the cavity.

19 . The aerosol-generating device according to claim 16 , wherein the shape of the cross-section at the first end is substantially circular, and the shape of the cross-section at the second end is one of:
substantially triangular, substantially oval or elliptical, and substantially square or rectangular.

20 . The aerosol-generating device according to claim 16 ,
wherein the shape of the cross-section of the cavity at the first end is substantially circular, and the shape of the cross-section of the cavity at the second end is substantially triangular, and wherein the aerosol-generating device further comprises a pin heating element that extends into the cavity at the second end.

21 . The aerosol-generating device according to claim 16 ,
wherein the shape of the cross-section of the cavity at the first end is substantially circular, and the shape of the cross-section of the cavity at the second end is substantially oval or elliptical, and wherein the aerosol-generating device further comprises a blade heating element that extends into the cavity at the second end or two pin heating elements that extend into the cavity at the second end.

22 . The aerosol-generating device according to claim 16 ,
wherein the aerosol-generating device further comprises an extractor configured to extract an aerosol-forming substrate from the aerosol-generating device, and wherein the extractor comprises a body defining the cavity configured to receive the aerosol-forming substrate.

23 . An extractor for extracting an aerosol-forming substrate from an aerosol-generating device,
wherein the extractor comprises a body defining a cavity configured to receive the aerosol-forming substrate, wherein the cavity has:
a first end and an opposing second end,
a length between the first end and the second end,
and a cross-section perpendicular to the length,
wherein a perimeter of the cross-section of the cavity remains substantially constant along the length of the cavity, and wherein at least one of:
a shape of the cross-section of the cavity varies along the length of the cavity,
a surface area of the cross-section of the cavity varies along the length of the cavity, and
a dimension of the cross-section of the cavity varies along the length of the cavity.

24 . The extractor according to claim 23 , wherein the dimension of the cross-section at the first end of the cavity is greater than the dimension of the cross-section at the second end of the cavity.

25 . The extractor according to claim 23 , wherein the surface area of the cross-section of the cavity at the first end of the cavity is greater than the surface area of the cross-section of the cavity at the second end of the cavity.

26 . The extractor according to claim 23 , wherein the shape of the cross-section at the first end is substantially circular, and the shape of the cross-section at the second end is one of:
substantially triangular, substantially oval or elliptical, and substantially square or rectangular.

27 . An aerosol-generating system, comprising:
an aerosol-forming substrate; and an aerosol-generating device according to claim 16 .

28 . An aerosol-generating system according to claim 27 ,
wherein the aerosol-forming substrate has:
a first end and an opposing second end,
a length between the first end and the second end, and
a cross-section perpendicular to the length, and
wherein before the aerosol-forming substrate is received in the cavity of the aerosol-generating device:
the shape of the cross-section of the aerosol-forming substrate is substantially constant along the length of the aerosol-forming substrate, and is substantially similar to the shape of the cross-section of the cavity at the first end of the cavity, and
a dimension of the cross-section of the aerosol-forming substrate is substantially constant along the length of the aerosol-forming substrate, and is substantially similar to the shape of the cross-section of the cavity at the first end of the cavity.

Assignees

• Philip Morris Products Sa

Inventors

• Bologna Matteo
• Farine Marie
• Uthurry Jerome

Classifications

• A24D1/20

  Cigarettes specially adapted for simulated smoking devices · CPC title

• A24F40/20

  Devices using solid inhalable precursors · CPC title

• A24F40/85

  Maintenance, e.g. cleaning · CPC title

• A24F40/46 Primary

  Shape or structure of electric heating means · CPC title

• A24F40/40 Primary

  Constructional details, e.g. connection of cartridges and battery parts · CPC title