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:
Jan. 06, 1981
Filed:
Jan. 12, 1979
Applicant:
Inventors:
Roger Z de la Burde, Powhatan, VA (US);
Patrick E Aument, Richmond, VA (US);
Assignee:
Philip Morris Incorporated, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
A24B / ; A24B / ; A24B / ;
U.S. Cl.
CPC ...
1311 / ; 1311 / ;
Abstract
A method for uniformly impregnating tobacco with additives, particularly flavoring agents, is disclosed. The method comprises contacting tobacco with liquid carbon dioxide having dispersed therein a flavoring agent or other additive; exposing the liquid carbon dioxide absorbed by the tobacco to conditions whereby it is converted to solid carbon dioxide; and thereafter allowing the solid carbon dioxide to evaporate. When the solid carbon dioxide is caused to vaporize rapidly, for example, by means of heat, the disclosed method will simultaneously impregnate tobacco with an additive and expand tobacco.