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:
Apr. 16, 2013
Filed:
Dec. 05, 2007
Uwe Werner Ehling, Goldkronach, DE;
Dietmar Franke, Bayreuth, DE;
Gerald Schmekel, Elmshorn, DE;
British American Tobacco (Germany) GmbH, Hamburg, DE;
Abstract
The invention relates to a method of producing cut tobacco material, whereby a tobacco starting material is heated and brought to a first increased pressure in one method stage; whereby the tobacco material is pumped to a second increased pressure in the second method stage which is higher than the first increased pressure; and whereby the tobacco material, heated and placed under pressure, is expanded and fed through a forming tool (). It further relates to a device for producing cut tobacco material comprising a heatable pressure chamber () with a tobacco material inlet, a tobacco material outlet and a conveying mechanism () for conveying the tobacco material from the inlet to the outlet and for increasing the pressure of the material to a first increased pressure, and with a forming tool () by means of which the tobacco material, heated and placed under pressure, is conveyed and expanded, and a mechanical pump () is integrated between the pressure chamber () and the forming tool () which pumps the tobacco material to a second increased pressure which is higher than the first increased pressure.