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. 31, 1992
Filed:
Jan. 05, 1990
Applicant:
Inventors:
Harvey J Young, Advance, NC (US);
George W Fearrington, Jr, Pfafftown, NC (US);
Assignee:
R. J. Reynolds Tobacco Company, Winston-Salem, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A24B / ;
U.S. Cl.
CPC ...
131372 ; 131309 ;
Abstract
Reconstituted tobacco material is provided by forming a slurry of tobacco dust in water and providing the slurry at a near neutral pH. The slurry is contacted with diammonium hydrogen orthophosphate, and the slurry is maintained at about 140.degree. F. for about 1 hour. The pH of the slurry then is increased to about 8, and the slurry is maintained at about 180.degree. F. for about 5 minutes. The slurry then is subjected to shear treatment, cast as a sheet, and dried. The resulting reconstituted tobacco material is useful as cut filler for cigarette manufacture.