Heat insulated apparatus for heating smokable material
AssigneeBritish American Tobacco (Investments) Limited
InventorsPetr Alexandrovich Egoyants, Dmitry Mikhailovich Volobuev, Pavel Nikolaevich Fimin, Fozia Saleem, Thomas Woodman
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Abstract
An apparatus configured to heat smokable material to volatilize at least one component of the smokable material, wherein the apparatus comprises a region insulation having a core region which is evacuated to a lower pressure than an exterior of the insulation.
Claims27
An apparatus configured to heat smokable material to volatilize at least one component of the smokable material, wherein the apparatus comprises a region of insulation having a core region which is evacuated to a lower pressure than an exterior of the insulation.
An apparatus according to any preceding claim, wherein the insulation comprises an infra-red radiation-reflective material to reduce the propagation of the infra-red radiation through the insulation.
An apparatus according to any preceding claim, wherein the core region comprises a deep vacuum.
An apparatus according to claim 15, wherein the vacuum is a hyper deep vacuum.
An apparatus according to any preceding claim, wherein the insulation comprises an exterior wall which encloses the core region.
An apparatus according to any preceding claim, wherein a pressure in the core region is between approximately 0.1 and approximately 0.001 mbar.
An apparatus according to any preceding claim, wherein a heat transfer coefficient of the insulation is between approximately 1.10 W/(m2K) and approximately 1.40 W/(m2K) when a temperature of the insulation is in a range of from 100 degrees Celsius to 250 degrees Celsius.
An apparatus according to any preceding claim, wherein the core region comprises a porous material.
An apparatus according to any preceding claim, wherein the apparatus is configured to heat the smokable material using an electrically-powered heater.
An apparatus according to any preceding claim, wherein the apparatus is configured to heat the smokable material without combusting the smokable material.
Dependencies are inferred from the claim text.