IMPROVEMENTS RELATING TO SMOKING ARTICLES

A smoking article mouthpiece comprises a smoke passage and a ventilation air duct, both of which extend from end-to-end of the mouthpiece. The duct is of a depth of 25% or more of the diameter of the mouthpiece. When the mouthpiece is incorporated in a smoking article such that air may enter the duc...

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Bibliographic Details
Main Authors MARTIN GRAHAM DUKE, HENRY GEORGE HORSEWELL
Format Patent
LanguageEnglish
Published 21.04.1988
Edition4
Subjects
CIGARETTES
CIGARS
HUMAN NECESSITIES
MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
MOUTHPIECES FOR CIGARS OR CIGARETTES
SMOKERS' REQUISITES
TOBACCO
TOBACCO SMOKE FILTERS
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Summary:A smoking article mouthpiece comprises a smoke passage and a ventilation air duct, both of which extend from end-to-end of the mouthpiece. The duct is of a depth of 25% or more of the diameter of the mouthpiece. When the mouthpiece is incorporated in a smoking article such that air may enter the duct, the ratio of the velocities of air and smoke is in excess of ten. The mouthpiece may also comprise a ventilation-air collection groove which extends about the element and opens into the ventilation air duct.
Bibliography:Application Number: AU19850047965