IP Library Granted Patent US 12,582,159
Granted Patent B2
US 12,582,159 · App. 17/687,115 · Granted Mar 24, 2026

Smoking substitute apparatus

Inventors: Benjamin Illidge (Liverpool, GB); Benjamin Astbury (Liverpool, GB); Nikhil Aggarwal (Liverpool, GB)
Assignee: Imperial Tobacco Limited
A24F40/10A24F40/44A24F40/51
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Quick Facts
Patent No.
US 12,582,159
App. No.
17/687,115
Granted
Mar 24, 2026
Kind
B2
Abstract

A smoking substitute apparatus comprises: a vaporization chamber having a longitudinal axis, the vaporization chamber having an inlet at a first end and an outlet at a second end opposite the first end. The inlet is configured to be in fluid communication with an outlet though a flow channel extending along the longitudinal axis of the vaporization chamber. A heater is located in the vaporization chamber at a position along the flow channel. The heater is configured to generate an aerosol from an aerosol precursor. The heater is spaced from the inlet by a distance of at least 5 mm.

Claims (26)

1 . A smoking substitute apparatus comprising:

a vaporization chamber having a longitudinal axis, the vaporization chamber having an inlet at a first end and an outlet at a second end opposite the first end; wherein the inlet is configured to be in fluid communication with an outlet though a flow channel extending along the longitudinal axis of the vaporization chamber; and

an aerosol generator in the vaporization chamber at a position along the flow channel; and wherein the aerosol generator is spaced from the inlet by a distance of at least 5 mm;

wherein the vaporization chamber between the inlet and the aerosol generator comprises a first outwardly tapered portion having a first width at a first end nearest the inlet and a second width at a second end nearest the aerosol generator, wherein the second width is greater than the first width, and

wherein the vaporization chamber between the inlet and the aerosol generator comprises a portion having a substantially constant width downstream of the first outwardly tapered portion.

2 . A smoking substitute apparatus according to claim 1 , wherein the aerosol generator is spaced from the inlet by a distance of up to 12 mm.

3 . A smoking substitute apparatus according to claim 1 , wherein the aerosol generator is spaced from the inlet by a distance of substantially 10 mm.

4 . A smoking substitute apparatus according to claim 1 , comprising a heater, and wherein the portion having a substantially constant width has a width which is greater than a diameter of the heater.

5 . A smoking substitute apparatus according to claim 1 , wherein the vaporization chamber between the inlet and the aerosol generator comprises a second outwardly tapered portion, wherein the portion having a substantially constant width is between the first outwardly tapered portion and the second outwardly tapered portion.

6 . A smoking substitute apparatus according to claim 1 , wherein the aerosol generator is orthogonal to the longitudinal axis.

7 . A smoking substitute apparatus according to claim 1 , wherein the aerosol generator comprises a wick extending orthogonally to the longitudinal axis of the vaporization chamber and a heater is wound around the wick.

8 . A smoking substitute system comprising:

a main body; and

a smoking substitute apparatus, the smoking substitute apparatus comprising:

a vaporization chamber having a longitudinal axis, the vaporization chamber having an inlet at a first end and an outlet at a second end opposite the first end; wherein the inlet is configured to be in fluid communication with an outlet though a flow channel extending along the longitudinal axis of the vaporization chamber; and

an aerosol generator in the vaporization chamber at a position along the flow channel; and wherein the aerosol generator is spaced from the inlet by a distance of at least 5 mm;

wherein the vaporization chamber between the inlet and the aerosol generator comprises a first outwardly tapered portion having a first width at a first end nearest the inlet and a second width at a second end nearest the aerosol generator, wherein the second width is greater than the first width, and

wherein the vaporization chamber between the inlet and the aerosol generator comprises a portion having a substantially constant width downstream of the first outwardly tapered portion.

9 . A smoking substitute apparatus according to claim 4 , wherein the vaporization chamber between the inlet and the aerosol generator comprises a second outwardly tapered portion, wherein the portion having a substantially constant width is between the first outwardly tapered portion and the second outwardly tapered portion.

10 . A smoking substitute apparatus according to claim 2 , wherein the aerosol generator is orthogonal to the longitudinal axis.

11 . A smoking substitute apparatus according to claim 2 , wherein the aerosol generator comprises a wick extending orthogonally to the longitudinal axis of the vaporization chamber and a heater is wound around the wick.

12 . A smoking substitute apparatus according to claim 3 , wherein the aerosol generator is orthogonal to the longitudinal axis.

13 . A smoking substitute apparatus according to claim 3 , wherein the aerosol generator comprises a wick extending orthogonally to the longitudinal axis of the vaporization chamber and a heater is wound around the wick.

14 . A smoking substitute apparatus according to claim 4 , wherein the aerosol generator is orthogonal to the longitudinal axis.

15 . A smoking substitute apparatus according to claim 4 , wherein the aerosol generator comprises a wick extending orthogonally to the longitudinal axis of the vaporization chamber and a heater is wound around the wick.

16 . A smoking substitute apparatus according to claim 6 , wherein the aerosol generator comprises a wick extending orthogonally to the longitudinal axis of the vaporization chamber and a heater is wound around the wick.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 24, 2026
From: ASTBURY, BENJAMIN
To: NERUDIA LIMITED
Reel/Frame 073878/0236 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 24, 2026
From: ILLIDGE, BENJAMIN
To: NERUDIA LIMITED
Reel/Frame 073878/0439 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 24, 2026
From: AGGARWAL, NIKHIL
To: NERUDIA LIMITED
Reel/Frame 073878/0570 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 22, 2023
From: NERUDIA LTD
To: IMPERIAL TOBACCO LIMITED
Reel/Frame 064671/0788 →
Priority Claims (1)
EP 19198643 · Sep 20, 2019 · regional
Continuity (2)
Continuation PCTEP2020076263 · Sep 21, 2020
Related Publication 20220256918A1 · Aug 18, 2022
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