IMPROVEMENTS RELATING TO SMOKING-ARTICLE MOUTHPIECE-ELEMENTS

• Main Authors: MARTIN GRAHAM DUKE, HENRY GEORGE HORSEWELL
• Format: Patent
• Language: English
• Published: 22.06.1988
• Edition: 4
• Subjects: CIGARETTES; CIGARS; HUMAN NECESSITIES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES; MOUTHPIECES FOR CIGARS OR CIGARETTES; SMOKERS' REQUISITES; TOBACCO; TOBACCO SMOKE FILTERS

A smoking article mouthpiece element comprises a first portion within which a smoke-passage and a ventilation-duct extends from end-to-end of the portion, a downstream end of the duct being spaced from the periphery of the first portion and the wall and the walls of the duct being gas impervious and...