The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 1977
Filed:
Jul. 11, 1975
Vello Norman, Raleigh, NC (US);
Liggett & Myers Incorporated, Durham, NC (US);
Abstract
The cigarette mouthpiece is made of one-piece construction in which two semi-cylindrical shells are hinged together along one edge and are releaseably secured together at the free edges. The mouthpiece has an internal cylindrical smoke chamber which is separated from a tobacco column at one end by a baffle means while the opposite end of the smoke chamber is defined by a pair of abutting walls which are each slotted to define an orifice. The orifice is of a predetermined diameter less than the diameter of the smoke passage to control the amount of smoke flowing out of the smoke passage for a given draw. The exterior surface of the mouthpiece is provided with longitudinal grooves which cooperate with an overlying perforated tipping paper to define flow paths for ventilation air. For a given draw, an amount of undiluted unfiltered smoke is drawn from the tobacco column into the smoke chamber and through the outlet orifice. At the same time, a quantity of ventilation air is drawn in through the tipping paper and longitudinal grooves to envelop the undiluted smoke within a smoker's mouth.