Aerosol provision device

Abstract

An aerosol provision device for generating aerosol from an aerosol generating article having a first section housing a first aerosol generating material and a second section housing a second aerosol generating material is disclosed. The aerosol provision device includes a first aerosol generator having a first heating element for causing aerosol to be generated from the first aerosol generating material and a second aerosol generator having a second heating element for causing aerosol to be generated from the second aerosol generating material. An insulating member is arranged between the first and second heating elements.

1 . An aerosol provision device for generating aerosol from an aerosol generating article having a first section housing a first aerosol generating material and a second section housing a second aerosol generating material, wherein the aerosol provision device comprises:
 a first aerosol generator comprising a first heating element for causing aerosol to be generated from the first aerosol generating material;   a second aerosol generator comprising a second heating element for causing aerosol to be generated from the second aerosol generating material; and   an insulating member arranged between the first and second heating elements.   
     
     
         2 . An aerosol provision device as claimed in  claim 1 , wherein the first aerosol generator comprises a first induction coil and a first susceptor comprising material that is heatable by penetration with a varying magnetic field, wherein the first susceptor comprises the first heating element. 
     
     
         3 . An aerosol provision device as claimed in  claim 2 , wherein the first susceptor is tubular. 
     
     
         4 . An aerosol provision device as claimed in  claim 1 , wherein the first aerosol generator comprises a first resistive heater comprising the first heating element. 
     
     
         5 . An aerosol provision device as claimed in  claim 4 , wherein the first resistive heater is tubular. 
     
     
         6 . (canceled) 
     
     
         7 . An aerosol provision device as claimed in  claim 1 , wherein the second aerosol generator comprises a second induction coil and a second susceptor comprising material that is heatable by penetration with a varying magnetic field, wherein the second susceptor comprises the second heating element. 
     
     
         8 . An aerosol provision device as claimed in  claim 7 , wherein the second susceptor is tubular. 
     
     
         9 . An aerosol provision device as claimed in any of claims  1 - 6 , wherein the second aerosol generator comprises a second resistive heater comprising the second heating element. 
     
     
         10 . An aerosol provision device as claimed in  claim 9 , wherein the second resistive heater is tubular. 
     
     
         11 . (canceled) 
     
     
         12 . An aerosol provision device as claimed in  claim 1 , wherein the insulating member is arranged between an end of the first heating element and an end of the second heating element. 
     
     
         13 . (canceled) 
     
     
         14 . An aerosol provision device as claimed in  claim 1 , wherein an end or lip of the first heating element is received or located within a hole or recess formed within the insulating member. 
     
     
         15 . An aerosol provision device as claimed in  claim 1 , wherein an end or lip of the second heating element is received or located within a hole or recess formed within the insulating member. 
     
     
         16 . (canceled) 
     
     
         17 . An aerosol provision device as claimed in  claim 1 , wherein the insulating member is arranged so as to be in physical contact with the first heating element and/or the second heating element. 
     
     
         18 . (canceled) 
     
     
         19 . (canceled) 
     
     
         20 . (canceled) 
     
     
         21 . (canceled) 
     
     
         22 . An aerosol provision device as claimed in  claim 1 , wherein the aerosol provision device further comprises an opening through which an aerosol generating article is inserted, in use, and wherein the first aerosol generator is arranged closer to the opening than the second aerosol generator. 
     
     
         23 . An aerosol provision device as claimed in  claim 22 , further comprising control circuitry arranged to activate both the first aerosol generator and the second aerosol generator and to heat, in use, the second section of the aerosol generating article to a lower temperature than the first section of the aerosol generating article. 
     
     
         24 . (canceled) 
     
     
         25 . (canceled) 
     
     
         26 . (canceled) 
     
     
         27 . (canceled) 
     
     
         28 . An aerosol provision device as claimed in  claim 1 , further comprising an aluminium shroud which is arranged external to the first aerosol generator and/or the second aerosol generator in order to retain heat within the aerosol provision device and/or to reduce heat transfer to an outermost housing of the aerosol provision device. 
     
     
         29 . An aerosol provision device as claimed in  claim 1 , further comprising one or more layers of graphite or graphite tape which are arranged external to the first aerosol generator and/or the second aerosol generator in order to retain heat within the aerosol provision device and/or to reduce heat transfer to an outermost housing of the aerosol provision device. 
     
     
         30 . (canceled) 
     
     
         31 . An aerosol provision device as claimed in  claim 1 , wherein the insulating member is gas impermeable. 
     
     
         32 . (canceled) 
     
     
         33 . (canceled) 
     
     
         34 . An aerosol provision system comprising:
 an aerosol provision device as claimed in  claim 1 ; and   an aerosol generating article having a first section housing a first aerosol generating material and a second section housing a second aerosol generating material, wherein the aerosol generating article further comprises a mouth or filter section and wherein the first section is closer to the mouth or filter section than the second section.   
     
     
         35 . A method of generating an aerosol comprising:
 providing an aerosol provision device as claimed in  claim 1 ;   inserting an aerosol generating article having a first section housing a first aerosol generating material and a second section housing a second aerosol generating material into the aerosol provision device; and   activating the first aerosol generator and/or the second aerosol generator.