Device for self-lighting of a cigarette, comprising incompatible chemical materials that generate sufficient thermal energy to light the end of said cigarette when they are in contact with one another

Abstract

The invention relates to a device for self-lighting of a cigarette ( 1 ), comprising a primary chemical material and a secondary chemical material, said chemical materials being incompatible and generating sufficient thermal energy to light the end ( 4 ) of said cigarette when they are in contact with one another, —the primary chemical material is placed in a capsule ( 70 ) intended to be fixed at the end to be lit ( 4 ) of the cigarette ( 1 ), —the secondary chemical material is disposed in a receptacle ( 80 ) designed to be positioned at the end to be lit ( 4 ) of the cigarette ( 1 ) in an arrangement that allows said secondary material to be brought into contact with the primary material, characterized in that: —the capsule ( 70 ) is made of an airtight and moisture-tight combustible material, said capsule having at least one puncturing zone, —the receptacle ( 80 ) incorporates a sealed container containing the secondary chemical material, said reservoir comprising a pointed end piece ( 82 ) the rigidity of which is sufficient to pierce the capsule ( 7 ) in its puncturing zone and through which said secondary chemical material can flow.

1 . A Device for self-lighting of a cigarette ( 1 ) comprising a primary chemical material ( 7 ) and a secondary chemical material ( 8 ), said chemical materials being incompatible and generating sufficient thermal energy to light the end ( 4 ) of said cigarette when they are in contact with one another,
 the primary chemical material ( 7 ) is placed in a capsule ( 70 ) intended to be fixed at the end to be lit ( 4 ) of the cigarette ( 1 ),   the secondary chemical material ( 8 ) is disposed in a receptacle ( 80 ) designed to be positioned at the end to be lit ( 4 ) of the cigarette ( 1 ) in an arrangement that allows said secondary material to be brought into contact with the primary material ( 7 ), wherein   the capsule ( 70 ) is made of an airtight and moisture-tight combustible material, said capsule having at least one puncturing zone ( 71 ), and   the receptacle ( 80 ) incorporates a sealed container ( 81 ) containing the secondary chemical material ( 8 ), said reservoir comprising a pointed end piece ( 82 ) the rigidity of which is sufficient to pierce the capsule ( 70 ) in its puncturing zone and through which said secondary chemical material can flow.   
     
     
         2 . The Device according to  claim 1 , wherein the puncturing zone ( 71 ) has the form of a seal that is thinner, less resistant than the rest of the wall of the capsule ( 70 ), or both. 
     
     
         3 . The Device according to  claim 1 , wherein the capsule ( 70 ) is mostly constituted of nitrocellulose. 
     
     
         4 . The Device according to  claim 1 , wherein the capsule ( 70 ) is maintained in position at the end to be lit ( 4 ) of the cigarette ( 1 ), by the intermediary of a collodion of nitrocellulose. 
     
     
         5 . The Device according to  claim 1 , wherein the receptacle ( 80 ) has the shape of a cylindrical tube of which the outer diameter corresponds substantially to that of a cigarette ( 1 ), with the reservoir ( 81 ) being housed in said tube, a flexible filling material ( 83 ) surrounding said reservoir being placed inside said tube. 
     
     
         6 . The Device according to  claim 5 , wherein the receptacle ( 80 ), the reservoir ( 81 ) and the flexible filling material ( 83 ), are made from biodegradable and/or bio-fragmentable materials. 
     
     
         7 . The Device according to  claim 1 , wherein the receptacle ( 80 ) and the reservoir ( 81 ) are made from a flexible material, in such a way that a pressing on the wall of said receptacle causes the secondary chemical material ( 8 ) to exit via the pointed end piece ( 82 ). 
     
     
         8 . The Device according to  claim 1 , wherein the reservoir ( 81 ) is provided with a piston of which the displacement causes the secondary chemical material ( 8 ) to exit via the pointed end piece ( 82 ). 
     
     
         9 . The Device according to  claim 1 , wherein the reservoir ( 81 ) contains between 0.005 ml and 0.05 ml of liquid glycerin. 
     
     
         10 . The Device according to  claim 1 , wherein the primary chemical material ( 7 ) is mostly constituted of potassium permanganate having the form of a powder of which the granulometry is between 10 μm and 200 μm. 
     
     
         11 . The Device according to  claim 1 , wherein a portion of the capsule ( 70 ) is configured to serve as a guide to the receptacle ( 80 ) during the fitting of said receptacle onto the end to be lit ( 4 ) of the cigarette ( 1 ). 
     
     
         12 . The Device according to  claim 1 , wherein the capsule ( 70 ) is of tapered shape, with the widest portion of said capsule being located on the side of the end to be lit ( 4 ) of the cigarette ( 1 ). 
     
     
         13 . The Device according to  claim 1 , wherein the capsule ( 70 ) comprises a portion ( 72 ) configured to serve as a guide to the receptacle during the fitting of the latter onto the end to be lit ( 4 ) of the cigarette ( 1 ). 
     
     
         14 . The Device according to  claim 1 , wherein the primary chemical material ( 7 ) is mostly constituted of potassium permanganate and the secondary chemical material ( 8 ) is mostly constituted of glycerin. 
     
     
         15 . The Device according to  claim 1 , wherein the sealed container ( 81 ) and the pointed end piece ( 82 ) have the form of a single-block part obtained via molding. 
     
     
         16 . The Device according to  claim 1 , wherein the sealed container ( 81 ) and the pointed end piece ( 82 ) are two separate parts. 
     
     
         17 . A Cigarette comprising an end to be lit ( 4 ) and an inhalation end ( 5 ), the cigarette is provided with a device for self-lighting according to  claim 1 , with the receptacle ( 80 ) being initially arranged at one of the ends of the cigarette, in an arrangement that prevents any placing into contact of said secondary material with the primary material ( 7 ), said receptacle being removable, and designed to be positioned against the end to be lit ( 4 ), in an arrangement that allows for putting the secondary material ( 8 ) in contact with the primary material ( 7 ). 
     
     
         18 . The Cigarette according to  claim 17 , wherein the receptacle ( 80 ) comprises a fastening zone ( 11 ) arranged around the pointed end piece ( 82 ), said fastening zone being configured to:
 fit onto the inhalation end ( 5 ) opposite the end to be lit ( 4 ) of the cigarette ( 1 ), in such a way that said pointed end piece is embedded into said inhalation end,   and fit onto the end to be lit ( 4 ), in such a way that said pointed end piece is embedded into the capsule ( 70 ).   
     
     
         19 . The Cigarette according to  claim 17 , wherein the receptacle ( 80 ) comprises:
 a first fastening zone ( 11   a ) arranged around the pointed end piece ( 82 ), said fastening zone being configured to fit onto the end to be lit ( 4 ), in such a way that said pointed end piece is embedded into the capsule ( 70 ), and   a second fastening zone ( 11   b ), opposite said first zone ( 11   a ), configured to fit onto the end to be lit ( 4 ) or onto the inhalation end ( 5 ), in such a way that said pointed end piece is separated from the capsule ( 70 ).   
     
     
         20 . The Cigarette according to  claim 17 , wherein the receptacle ( 80 ) is maintained in the extension of the cigarette ( 1 ) by means of a detachable adhesive tab ( 13 ) or a cut according to dotted lines, with the pointed end piece ( 82 ) being embedded into the inhalation end ( 5 ).