Electrically heated aerosol-generating system

Patent metadata

Field	Value
Publication number	US-10136673-B2
Application number	US-201515128787-A
Country	US
Kind code	B2
Filing date	Mar 17, 2015
Priority date	Mar 31, 2014
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

An electrically operated aerosol-generating system is provided, including a housing; an aerosol-forming substrate; at least one heating element configured to heat the aerosol-forming substrate and to generate an aerosol; a power supply configured to supply power to the at least one heating element; electric circuitry configured to control a supply of power from the power supply to the at least one heating element; a first switch provided on an external surface of the housing; and a mouthpiece including at least one second, touch sensitive, switch, the mouthpiece being deformable from a first configuration to a second configuration, wherein in the first configuration the at least one second switch is not exposed and in the second configuration the at least one second switch is exposed. The circuitry is configured to provide power to the at least one heating element when both the first switch and the second switch are activated.

First claim

The invention claimed is:

1. An electrically operated aerosol-generating system, comprising:
a housing;
an aerosol-forming substrate;
at least one heating element configured to heat the aerosol-forming substrate and to generate an aerosol;
a power supply configured to supply power to the at least one heating element;
electric circuitry configured to control a supply of power from the power supply to the at least one heating element;
a first switch provided on an external surface of the housing; and
a mouthpiece comprising at least one second, touch sensitive, switch, the mouthpiece being deformable from a first configuration to a second configuration,
wherein in the first configuration the at least one second, touch sensitive, switch is not exposed and in the second configuration the at least one second, touch sensitive, switch is exposed, and
wherein the electric circuitry is configured to provide power via the power supply to the at least one heating element when both the at least one first switch and the at least one second, touch sensitive, switch are activated.

2. The system according to claim 1 , wherein the at least one first switch is a touch sensitive switch.

3. The system according to claim 2 , wherein the at least one first, switch extends along at least 30% of a length of the housing.

4. The system according to claim 2 , wherein the at least one first switch is provided substantially at a mid-point along a longitudinal length of the housing.

5. The system according to claim 2 , wherein the at least one first switch is a resistive switch or a capacitive switch.

6. The system according to claim 1 , wherein the mouthpiece is configured to deform from the first configuration to the second configuration by application of a force that is sufficient to deform a thickness of the mouthpiece by at least about 10%.

7. The system according to claim 1 , wherein the at least one second, touch sensitive, switch is a resistive switch or a capacitive switch.

8. The system according to claim 1 , wherein the electric circuitry is further configured to control the supply of power from the power supply to the at least one heating element in a pre-heating mode.

9. The system according to claim 8 , wherein the pre-heating mode comprises a spike of power.

10. The system according to claim 8 , wherein the electric circuitry is further configured to initiate the pre-heating mode when the at least one first switch is activated, and before the at least one second, touch sensitive, switch is activated.

11. The system according to claim 9 , wherein the electric circuitry is further configured to provide power via the power supply to the at least one heating element in a heating mode when the at least one second, touch sensitive, switch is activated subsequent to providing power to the at least one heating element in the pre-heating mode.

12. The system according to, claim 1 , wherein the at least one heating element is an inductive heating element.

13. The system according to claim 1 , further comprising an aerosol-generating device and an aerosol-generating article,
the aerosol-generating device comprising:
the housing;
the power supply; and
the electric circuitry, and

the aerosol-generating article comprising:
the aerosol-forming substrate.

14. The system according to claim 13 , wherein the aerosol-generating device further comprises the mouthpiece.

15. The system according to claim 13 , wherein the aerosol-generating article further comprises the mouthpiece.

Assignees

• Philip Morris Products Sa

Inventors

• Mironov Oleg

Classifications

• H05B6/06

  Control, e.g. of temperature, of power · CPC title

• A24B15/167

  in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes · CPC title

• A61M2205/8206

  battery-operated · CPC title

• H03K17/9647

  using a plurality of detectors, e.g. keyboard · CPC title

• A61M11/042

  electrical · CPC title