Patents by Inventor Uwe Werner Ehling

Uwe Werner Ehling has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8820328
    Abstract: The invention relates to a method of producing cut tobacco material, whereby a tobacco initial material is heated and placed under pressure and once heated and placed under pressure, the material is fed through a shearing gap and expanded and defibrated. It further relates to a device for producing cut tobacco material with a pressure chamber, which has a tobacco material inlet at the low-pressure end and a tobacco material outlet at the pressure end and a conveyor system for conveying the tobacco material from the inlet to the outlet, and the tobacco material outlet has a gap through which the material passes and expands, and the gap has walls which can be moved towards one another. It further relates to a smoking article containing such a cut, defibrated tobacco material product and the use of a plug screw feeder-extruder with a shearing gap outlet for defibrating tobacco material.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: September 2, 2014
    Assignee: British American Tobacco (Germany) GmbH
    Inventors: Uwe Werner Ehling, Gerald Schmekel, Dietmar Franke, Matthias Link
  • Patent number: 8418697
    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 (23).
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: April 16, 2013
    Assignee: British American Tobacco (Germany) GmbH
    Inventors: Uwe Werner Ehling, Dietmar Franke, Gerald Schmekel
  • Patent number: 7934509
    Abstract: The invention relates to a method of producing cut tobacco material, whereby a tobacco initial material is heated and placed under pressure and once heated and placed under pressure, the material is fed through a shearing gap and expanded and defibrated. It further relates to a device for producing cut tobacco material with a pressure chamber, which has a tobacco material inlet at the low-pressure end and a tobacco material outlet at the pressure end and a conveyor system for conveying the tobacco material from the inlet to the outlet, and the tobacco material outlet has a gap through which the material passes and expands, and the gap has walls which can be moved towards one another. It further relates to a smoking article containing such a cut, defibrated tobacco material product and the use of a plug screw feeder-extruder with a shearing gap outlet for defibrating tobacco material.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: May 3, 2011
    Assignee: British American Tobacco (Germany) GmbH
    Inventors: Uwe Werner Ehling, Gerald Schmekel, Dietmar Franke, Matthias Link
  • Publication number: 20110088705
    Abstract: The invention relates to a method of producing cut tobacco material, whereby a tobacco initial material is heated and placed under pressure and once heated and placed under pressure, the material is fed through a shearing gap and expanded and defibrated. It further relates to a device for producing cut tobacco material with a pressure chamber, which has a tobacco material inlet at the low-pressure end and a tobacco material outlet at the pressure end and a conveyor system for conveying the tobacco material from the inlet to the outlet, and the tobacco material outlet has a gap through which the material passes and expands, and the gap has walls which can be moved towards one another. It further relates to a smoking article containing such a cut, defibrated tobacco material product and the use of a plug screw feeder-extruder with a shearing gap outlet for defibrating tobacco material.
    Type: Application
    Filed: December 23, 2010
    Publication date: April 21, 2011
    Inventors: Uwe Werner Ehling, Gerald Schmekel, Dietmar Franke, Matthias Link
  • Publication number: 20100139675
    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 (23).
    Type: Application
    Filed: December 12, 2007
    Publication date: June 10, 2010
    Inventors: Uwe Werner Ehling, Dietmar Franke, Gerald Schmekel
  • Publication number: 20080142027
    Abstract: The invention relates to a method of producing cut tobacco material, whereby a tobacco initial material is heated and placed under pressure and once heated and placed under pressure, the material is fed through a shearing gap and expanded and defibrated. It further relates to a device for producing cut tobacco material with a pressure chamber, which has a tobacco material inlet at the low-pressure end and a tobacco material outlet at the pressure end and a conveyor system for conveying the tobacco material from the inlet to the outlet, and the tobacco material outlet has a gap through which the material passes and expands, and the gap has walls which can be moved towards one another. It further relates to a smoking article containing such a cut, defibrated tobacco material product and the use of a plug screw feeder-extruder with a shearing gap outlet for defibrating tobacco material.
    Type: Application
    Filed: November 28, 2005
    Publication date: June 19, 2008
    Inventors: Uwe Werner Ehling, Gerald Schmekel, Dietmar Franke, Matthias Link
  • Patent number: 7387128
    Abstract: The invention relates to a continuous method for pressure-conditioning material for food and/or semi-luxury consumables, wherein said material (12) is introduced through an entrance (4) into a hyperbarically pressurized conditioning chamber (2), where it is treated with a conditioning agent, and extracted again from said conditioning chamber (2) at an exit (8), wherein the material (12) is conveyed continuously from said entrance (4) to said exit (8) in a conditioning chamber (2) inclined obliquely upwards, by means of a mixing conveyor, in particular a conveying screw (3).
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: June 17, 2008
    Assignee: British American Tobacco (Germany) GmbH
    Inventors: Uwe Werner Ehling, Gerald Schmekel, Frank Plückhahn, Hans-Werner Fuchs, Matthias Link
  • Patent number: 7380554
    Abstract: The invention relates to a continuous method for pressure-conditioning material for food and/or semi-luxury consumables, wherein said material (12) is introduced through an entrance (4) into a hyperbarically pressurized conditioning chamber (2), where it is treated with a conditioning agent, and extracted again from said conditioning chamber (2) at an exit (8), wherein the material (12) is conveyed continuously from said entrance (4) to said exit (8) in a conditioning chamber (2) inclined obliquely upwards, by means of a mixing conveyor, in particular a conveying screw (3).
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: June 3, 2008
    Assignee: British American Tobacco (Germany) GmbH
    Inventors: Uwe Werner Ehling, Gerald Schmekel, Frank Plückhahn, Hans-Werner Fuchs, Matthias Link
  • Publication number: 20040206367
    Abstract: The invention relates to a method for conditioning comminuted tobacco material by heating and moistening with water vapor, wherein the comminuted tobacco material free-falls down through a chamber operating in a continuous process and is treated during free-fall with water vapor via nozzles; a hyperbaric pressure is maintained in said chamber.
    Type: Application
    Filed: May 11, 2004
    Publication date: October 21, 2004
    Applicant: British American Tobacco (Germany)
    Inventors: Uwe Werner Ehling, Frank Pluckhahn, Gerald Schmekel, Arno Weiss
  • Publication number: 20040182258
    Abstract: The invention relates to a continuous method for pressure-conditioning material for food and/or semi-luxury consumables, wherein said material (12) is introduced through an entrance (4) into a hyperbarically pressurized conditioning chamber (2), where it is treated with a conditioning agent, and extracted again from said conditioning chamber (2) at an exit (8), wherein the material (12) is conveyed continuously from said entrance (4) to said exit (8) in a conditioning chamber (2) inclined obliquely upwards, by means of a mixing conveyor, in particular a conveying screw (3).
    Type: Application
    Filed: February 5, 2004
    Publication date: September 23, 2004
    Inventors: Uwe Werner Ehling, Gerald Schmekel, Frank Pluckhahn, Hans-Werner Fuchs, Matthias Link
  • Patent number: 6779527
    Abstract: The invention relates to a method and a device for conditioning comminuted tobacco material by heating and moistening with water vapor, wherein the comminuted tobacco material free-falls down through a chamber operating in a continuous process and is treated during free-fall with water vapor via nozzles; a hyperbaric pressure is maintained in said chamber.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: August 24, 2004
    Assignee: British American Tobacco (Germany) GmbH
    Inventors: Uwe Werner Ehling, Frank Plückhahn, Gerald Schmekel, Arno Weiss
  • Patent number: 6542234
    Abstract: The invention relates to a method of detecting the particles of a tobacco particle stream in the production of smokable articles by scanning by means of a fine-beam light barrier, the diameter of which is smaller than the dimensions of the tobacco particles, and from the distribution of the dimensions of the tobacco particles determined by darkening of the fine-beam light barrier.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: April 1, 2003
    Assignee: British-American Tobacco (Germany) GmbH
    Inventors: Reinhard Ulrich, Arno Weiss, Gerald Schmekel, Heinz-Werner Masurat, Uwe Werner Ehling
  • Publication number: 20020033182
    Abstract: The invention relates to a method and a device for conditioning comminuted tobacco material by heating and moistening with water vapor, wherein the comminuted tobacco material free-falls down through a chamber operating in a continuous process and is treated during free-fall with water vapor via nozzles; a hyperbaric pressure is maintained in said chamber.
    Type: Application
    Filed: August 2, 2001
    Publication date: March 21, 2002
    Inventors: Uwe Werner Ehling, Frank Pluckhahn, Gerald Schmekel, Arno Weiss