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:
Jun. 04, 1991
Filed:
Aug. 26, 1985
Ernest G Farrier, Winston-Salem, US;
James L Harris, Westfield, US;
Alan B Norman, Clemmons, US;
James L Resce, Yadkinville, US;
Andrew J Sensabaugh, Jr, Winston-Salem, US;
Michael D Shannon, Winston-Salem, US;
R. J. Reynolds Tobacco Company, Winston-Salem, NC (US);
Abstract
The present invention preferably relates to a smoking article which is capable of producing substantial quantities of aerosol, both initially and over the useful life of the product, without significant thermal degradation of the aerosol former and without the presence of substantial pyrolysis or incomplete combustion products of sidestream aerosol. The article of the present invention is able to provide the user with the sensations and benefits of cigarette smoking without the substantial combustion products produced by burning tobacco in a conventional cigarette. In addition, the article may be made virtually ashless so that the user does not have to remove any ash during use. Preferred embodiments of the present smoking article comprise a short combustible carbonaceous fuel element, preferably less than 30 mm in length prior to smoking and less than about 8 mm in diameter a short, heat stable, preferably carbonaceous substrate bearing an aerosol forming substance, an efficient insulating means, and a relatively long mouthend piece. The fuel element is provided with a plurality of longitudinally extending passageways which act to control the heat transferred from the burning fuel element to the aerosol generating means.