US 8,616,218 B2Granted

Tobacco filter

OwnerKazuto Koshiishiinventor

Life of this patent

Estimating the term…

Loading patent…

Abstract

A tobacco filter which can easily produce a hand-rolled cigarette, can suppress excessive heat conduction to a smoker's lips, and can suppress spoiling of tobacco taste during smoking is provided. A tobacco filter for producing a hand-rolled cigarette by wrapping at least a portion thereof together with a smoking plant with a wrapping paper has an outer surface on which grooves are formed and a smoke channel. The tobacco filter is made of an incombustible material. A surface area of an outer surface of the tobacco filter is increased due to the formation of the grooves so that the tobacco filter can be efficiently cooled and the excessive heat conduction to a smoker's lips can be suppressed. In wrapping the tobacco filter with the wrapping paper, inward folding lines are formed on the wrapping paper by corner portions of the tobacco filter.

Claims14

Dependent claims

A tobacco filter for use in production of a hand-rolled cigarette by wrapping at least a portion of the filter and a smoking plant with a wrapping paper, the tobacco filter being made of an incombustible material, said tobacco filter having a smoking plant side and a smoker side opposite to the smoking plant side and comprising:

an uneven outer surface adapted to be wrapped on the outside with the smoking plant;
a hollow portion which forms a smoke channel;
and
an adhesion member which is made of an incombustible material which is insertable from the smoking plant side of the filter into the hollow portion during smoking, and to which at least a portion of a substance produced when the smoking plant is burnt is adhered,
wherein
the adhesion member includes a stopper at the smoking plant side and said stopper is adapted to prevent the adhesion member from entering an inside of a smoker's mouth during smoking, and
the adhesion member has a twisted shape formed by twisting an elongated plate along a longitudinal direction.

4 more elements

Dependencies are inferred from the claim text.