Aerosol-generating device with sealing elements in cavity

Patent metadata

Field	Value
Publication number	US-12453373-B2
Application number	US-202017638907-A
Country	US
Kind code	B2
Filing date	Sep 4, 2020
Priority date	Sep 6, 2019
Publication date	Oct 28, 2025
Grant date	Oct 28, 2025

Abstract

The invention relates to an aerosol-generating device comprising a cavity. The cavity is configured to receive an aerosol-generating article. The device comprises a first sealing element arranged along a sidewall of the cavity. The first sealing element is arranged at an upstream portion of the cavity. The device comprises a second sealing element. The second sealing element is arranged at a downstream portion of the sidewall of the cavity. The device further comprises a power supply and a heating element. The heating element is an external heating element.

First claim

The invention claimed is:

1. An aerosol-generating device comprising:
a cavity configured to receive an aerosol-generating article;
a first sealing element arranged along a sidewall of the cavity, wherein the first sealing element is arranged at an upstream portion of the cavity;
a second sealing element, wherein the second sealing element is arranged at a downstream portion of the cavity;
a power supply; and
an induction heating element,
wherein the induction heating element is an external heating element surrounding the cavity.

2. The aerosol-generating device according to claim 1 , wherein the first sealing element is arranged such that an airflow between the sidewall of the cavity and the received aerosol-generating article is prevented in the region of the first sealing element.

3. The aerosol-generating device according to claim 1 , wherein one or both of each of the first and second sealing elements are each arranged to provide a circumferential seal between the sidewall of the cavity and an aerosol-generating article when the aerosol-generating article is received in the cavity.

4. The aerosol-generating device according to claim 1 , wherein one or both of the first and second sealing elements are configured as O-rings.

5. The aerosol-generating device according to claim 1 , wherein one or both of the sealing elements comprise thermo-resistant material.

6. The aerosol-generating device according to claim 1 , wherein the device comprises a recess in the sidewall of the cavity adjacent a base of the cavity.

7. The aerosol-generating device according to claim 1 , wherein the device comprises a movable bottom element arranged adjacent the base of the cavity.

8. An aerosol-generating system comprising an aerosol-generating device according to claim 1 and an aerosol-generating article.

9. The aerosol-generating system according to claim 8 , wherein the aerosol-generating article comprising:
a wrapping paper around the outer circumference of the aerosol-generating article;
a first sealing wrapper, wherein the first sealing wrapper partly covers the wrapping paper and increases the diameter of the aerosol-generating article in the region of the first sealing wrapper, and
a second sealing wrapper, wherein the first sealing wrapper is arranged at an upstream portion of the aerosol-generating article and the second sealing wrapper is arranged at a downstream portion of the aerosol-generating article.

10. The aerosol-generating system according to claim 9 , wherein the first sealing wrapper of the aerosol-generating article is arranged to contact the first sealing element of the aerosol-generating device, when the aerosol-generating article is received in the cavity of the aerosol-generating device.

11. The aerosol-generating system according to claim 9 , wherein the second sealing wrapper of the aerosol-generating article is arranged to contact the second sealing element of the aerosol-generating device, when the aerosol-generating article is received in the cavity of the aerosol-generating device.

Assignees

• Philip Morris Products Sa

Inventors

• Lavanchy Frederic
• Pijnenburg Johannes Petrus Maria

Classifications

• A24D1/02

  with special covers · CPC title

• A24D1/20 Primary

  Cigarettes specially adapted for simulated smoking devices · CPC title

• A24F40/20

  Devices using solid inhalable precursors · CPC title

• H01M2220/30

  Batteries in portable systems, e.g. mobile phone, laptop · CPC title

• A24F40/46

  Shape or structure of electric heating means · CPC title