Device for smoking a smokeable material

Abstract

The bottom of the cup (34) presents a central zone (Zc) rising above the volume of smokable material and above a high level (NH) of smokable material.

1 . A capsule presenting a wall defining an inside space internal to the capsule and containing a volume of smokable material, the wall of the capsule including:
 a cup presenting a bottom and an annular peripheral wall of the cup, the annular peripheral wall defining a top opening of the cup;   a membrane seal closing the top opening of the cup; and   the volume of smokable material being placed in the cup against the bottom of the cup and defining a high level (NH) of smokable material inside the capsule, the high level (NH) being at a distance from said membrane seal;   the capsule being characterized in that the bottom of the cup presents a central zone (Zc) rising above the volume of smokable material and above said high level (NH) of smokable material   the capsule presents a bottom outside face which forms a surface of revolution about an axis of revolution, said surface of revolution being W-shaped when observed in cross-section on a plane containing the axis of revolution, the W-shaped surface of revolution having three rounded vertices.   
     
     
         2 . The capsule according to  claim 1 , wherein the membrane seal is made of a material of thickness that is smaller than the thickness of the material constituting the cup. 
     
     
         3 . The capsule according to  claim 1 , wherein the membrane seal and the cup are made essentially of aluminum. 
     
     
         4 . The capsule according to  claim 1 , wherein the membrane seal presents a periphery that is fastened in sealed manner along a peripheral edge of the top opening of the cup. 
     
     
         5 . The capsule according to  claim 4 , wherein said periphery of the membrane seal is fastened to the peripheral edge of the top opening by crimping or by adhesive or by welding or by soldering. 
     
     
         6 . The capsule according to  claim 1 , wherein a food protection varnish is applied to the inside of the capsule so that the material for smoking comes into contact only with a varnished surface. 
     
     
         7 . The capsule according to  claim 1 , wherein said varnish is used for sticking the membrane seal to a rim of the cup. 
     
     
         8 . (canceled) 
     
     
         9 . (canceled) 
     
     
         10 . The capsule according to  claim 1 , wherein the smokable material is arranged in a ring around the central zone (Zc).