Aerosol-generating device and extractor with shaped cavity

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.

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.