Article for use with apparatus for heating smokable material

Abstract

Disclosed is an article for use with apparatus for heating smokable material to volatilise at least one component of the smokable material. The article comprises a cavity for receiving smokable material, and a coil of heating material that is heatable by penetration with a varying magnetic field to heat the cavity. Also disclosed is a system comprising the article and apparatus. The apparatus has an interface for cooperating with the article, and a magnetic field generator. The magnetic field generator comprises a coil for generating a varying magnetic field for penetrating the coil of the article when the interface is cooperating with the article. An impedance of the coil of the magnetic field generator is equal, or substantially equal, to an impedance of the coil of the article.

1 . An article for use with an apparatus configured to heat smokable material to volatilize at least one component of the smokable material, the article comprising:
 a cavity configured to receive a smokable material; and   a coil of heater material that is heatable via penetration with a varying magnetic field and to thereby heat the cavity.   
     
     
         2 . The article of  claim 1 , further comprising a closed circuit of heater material that is heatable via penetration with a varying magnetic field, wherein the closed circuit includes the coil of heater material. 
     
     
         3 . The article of  claim 1 , wherein the coil is disposed in the cavity. 
     
     
         4 . The article of  claim 1 , wherein the cavity is elongate, and wherein the coil extends along a longitudinal axis that is substantially aligned with a longitudinal axis of the cavity. 
     
     
         5 . The article of  claim 1 , wherein the heater material comprises one or more materials selected from the group consisting of: an electrically-conductive material, a magnetic material, and a non-magnetic material. 
     
     
         6 . The article of  claim 1 , wherein the heater material comprises a metal or a metal alloy. 
     
     
         7 . The article of  claim 1 , wherein the heater material comprises one or more materials selected from the group consisting of: aluminium, gold, iron, nickel, cobalt, conductive carbon, graphite, plain-carbon steel, stainless steel, ferritic stainless steel, copper, and bronze. 
     
     
         8 . The article of  claim 1 , wherein the heater material is susceptible to eddy currents induced in the heater material when penetrated by a varying magnetic field. 
     
     
         9 . The article of  claim 1 , wherein a first portion of the coil is more susceptible to eddy currents induced therein by penetration with a varying magnetic field than a second portion of the coil. 
     
     
         10 . The article of  claim 1 , further comprising a container that defines the cavity, wherein the container is free of material that is heatable by penetration with a varying magnetic field. 
     
     
         11 . The article of  claim 10 , wherein at least a portion of the container is transparent or translucent. 
     
     
         12 . The article of  claim 1 , further comprising the smokable material received in the cavity. 
     
     
         13 . The article of  claim 12 , wherein the heater material is in contact with the smokable material. 
     
     
         14 . The article of  claim 12 , wherein the smokable material includes tobacco and/or one or more humectants. 
     
     
         15 . The article of  claim 1 , further comprising a mouthpiece that defines a passageway that is in fluid communication with the cavity. 
     
     
         16 . The article of  claim 1 , further comprising: a passageway defined therein and configured to fluidly connect the cavity with an exterior of the article; and an actuator operable to vary a cross sectional area of the passageway. 
     
     
         17 . The article of  claim 1 , wherein the cavity is sealed from an exterior of the article. 
     
     
         18 . The article of  claim 1 , further comprising an air-permeable membrane configured to admit air into the cavity from an exterior of the article during use. 
     
     
         19 . The article of  claim 18 , further comprising a seal disposed between the air-permeable membrane and the exterior of the article, wherein the seal seals the air-permeable membrane from the exterior of the article, and the seal is breakable or removable from the article so as to place the air-permeable membrane in fluid communication with the exterior of the article during use. 
     
     
         20 . A system, comprising:
 an article including a cavity configured to receive smokable material, and a coil of heater material that is heatable by penetration with a varying magnetic field to heat the cavity; and   an apparatus having an interface configured to cooperate with the article, and a magnetic field generator having a coil configured to generate a varying magnetic field that penetrates the coil of the article when the interface is cooperating with the article;   wherein an impedance of the coil of the magnetic field generator is equal, or substantially equal, to an impedance of the coil of the article.   
     
     
         21 . The system of  claim 20 , wherein the interface defines a recess configured to receive at least a portion of the article. 
     
     
         22 . The system of  claim 21 , wherein the recess is elongate, and wherein the coil of the magnetic field generator extends along a longitudinal axis that is substantially aligned with a longitudinal axis of the recess.