SEALED HEATED NON-FLAMMABLE CIGARETTE Russian patent published in 2024 - IPC A24D1/20 

FIELD: smoking accessories.

SUBSTANCE: group of inventions relates to a sealed heated non-flammable cigarette and a unit of a sealed heated non-flammable cigarette. Sealed heated non-flammable cigarette comprises tobacco rod (1-1), hollow cone (1-2) for extracting smoke, pipe (1-3) for transmitting smoke, functional filtering mouthpiece (1-4) and external winding connecting material (1-5). Tobacco rod (1-1), said hollow cone (1-2) for extracting smoke, said pipe (1-3) for transferring smoke and said functional filtering mouthpiece (1-4) are connected in series to each other and wrapped in said external winding connecting material (1-5). Peripheral surface and/or the surface of the upstream end of tobacco rod (1-1) are wrapped in a paper-based material or a foil-based material with air impermeability or controlled air permeability to form a sealed structure. Smoke extraction hollow cone (1-2) comprises cylindrical base (1-2-1) and narrowing cone (1-2-2) and is equipped with narrowing cavity (1-2-3), narrowing cone (1-2-2) is provided with hole (1-2-2-1) of the cone in its upper part and/or on the side wall, and the number of holes of cone (1-2-2-1) is at least one. Peripheral side wall of smoke transfer pipe (1-3) is provided with at least one through hole (1-3-1), which passes through external winding connecting material (1-5), and the axial distance from through hole (1-3-1) to the lower surface of the cone is less than the axial distance from hole (1-2-2-1) of the cone to the lower surface of convergent cone (1-2-2). Plug-in sealed structure is located between hollow cone (1-2) for extraction of smoke and pipe (1-3) for smoke transfer.

EFFECT: reduced content of oxygen in the tobacco section, since air does not pass through the tobacco section, and prevention of tobacco residues from falling out.

9 cl, 9 dwg