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:
Mar. 03, 1987
Filed:
Sep. 13, 1982
Laszlo Egri, Basel, CH;
Tamag Basel AG, Birsfelden, CH;
Abstract
A method and apparatus for carrying out the volume-expansion (puffing) of disintegrated tobacco, wherein said tobacco is impregnated with an impregnating medium containing water and/or orthophosphoric acid and/or the sodium or ammonium salts thereof and/or ammonium sulphate to an initial moisture content of at least about 35% by weight, and is then reduced to a final moisture content of about 10-13% by weight with the aid of a heating medium containing gaseous water vapor, the overall duration of the method being at least about 10 seconds. The method according to the invention is carried out as a continuous two-step process including a first process step during which the impregnated tobacco's moisture content is reduced by about 5% to about 60% of its initial moisture content under standard puffing conditions, and a second less severe process step, during which the tobacco is subjected to a flow of heating medium and/or mechanically conveyed under moderated process conditions as compared to the puffing conditions, and at a lower temperature, to attain a final moisture content of about 10% to 13% by weight.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile