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. 13, 2015
Filed:
Sep. 24, 2009
Gerald Schmekel, Elmshorn, DE;
Dietmar Franke, Bayreuth, DE;
Gerald Schmekel, Elmshorn, DE;
Dietmar Franke, Bayreuth, DE;
British American Tobacco (Germany) GmbH, Hamburg, DE;
Abstract
The invention relates to a method for extracting agents from a tobacco material, wherein the tobacco material is conveyed through a housing to which an extraction agent () is fed and from which the extraction agent is again discharged, wherein the extraction occurs in an extruder () under increased extrusion pressure by way of contacting the tobacco material with the extraction agent during a tobacco material extrusion process. The invention further relates to an extraction device for tobacco material, having a housing () and a conveyor unit () in the housing, and having an extraction agent inlet () and an extract outlet (), wherein the housing is associated with a screw extruder (), wherein the extract is separated from the extruder () to the outside environment by means of the pressure generated therein across the drop of pressure.