Patents by Inventor Fritz Schelhorn

Fritz Schelhorn 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: 6502581
    Abstract: The invention relates to a method and device for regulating the output moisture content of tobacco conditioned by a loosening/conditioning and optionally casing (saucing) drum comprising injecting a throughflow of water into the infeed region of the drum by a first nozzle regulated depending on the target value for the tobacco output moisture content and the actual values for the tobacco mass flow, the steam throughflow and the tobacco input moisture content; and injecting a throughflow of water in the outlet region of the drum through a second nozzle, the target value of which is computed depending on the target value and actual value for the tobacco output moisture content.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: January 7, 2003
    Assignee: Brown & Williamson Tobacco Corporation
    Inventors: Dietmar Franke, Fritz Schelhorn, Hans-Werner Fuchs, Harald Hofmann
  • Patent number: 6322317
    Abstract: The invention relates to a method and a device for feeding layers of tobacco to an intermediate reservoir, including feeding a continual falling, horizontal shifting stream of tobacco to the intermediate reservoir, the falling stream of tobacco being deflected by web-type separators, below, which predetermined break points form in the tobacco mass in the intermediate reservoir, resulting in vertical columns of tobacco separable from each other, the columns of tobacco separating individually from the tobacco mass and dropping onto a dispensing conveyor.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: November 27, 2001
    Assignee: Brown & Williams on Tobacco Corporation
    Inventor: Fritz Schelhorn
  • Publication number: 20010000095
    Abstract: The invention relates to a method and device for regulating the output moisture content of tobacco conditioned by a loosening/conditioning and optionally casing (saucing) drum comprising injecting a throughflow of water into the infeed region of the drum by a first nozzle regulated depending on the target value for the tobacco output moisture content and the actual values for the tobacco mass flow, the steam throughflow and the tobacco input moisture content; and injecting a throughflow of water in the outlet region of the drum through a second nozzle, the target value of which is computed depending on the target value and actual value for the tobacco output moisture content.
    Type: Application
    Filed: December 4, 2000
    Publication date: April 5, 2001
    Inventors: Dietmar Franke, Fritz Schelhorn, Hans-Werner Fuchs, Harald Hofmann
  • Patent number: 6155269
    Abstract: The invention relates to a method and device for regulating the output moisture content of tobacco conditioned by a loosening/conditioning and optionally casing (saucing) drum comprising injecting a throughflow of water into the infeed region of the drum by a first nozzle regulated depending on the target value for the tobacco output moisture content and the actual values for the tobacco mass flow, the steam throughflow and the tobacco input moisture content; and injecting a throughflow of water in the outlet region of the drum through a second nozzle, the target value of which is computed depending on the target value and actual value for the tobacco output moisture content.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: December 5, 2000
    Assignee: Brown & Williamson Tobacco Corporation
    Inventors: Dietmar Franke, Fritz Schelhorn, Hans-Werner Fuchs, Harald Hofmann
  • Patent number: 6123447
    Abstract: The invention relates to a method and a device for feeding layers of tobacco to an intermediate reservoir, including feeding a continual falling, horizontal shifting stream of tobacco to the intermediate reservoir, the falling stream of tobacco being deflected by web-type separators below, which predetermined break points form in the tobacco mass in the intermediate reservoir resulting in vertical columns of tobacco separable from each other, the columns of tobacco separating individually from the tobacco mass and dropping onto a dispensing conveyor.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: September 26, 2000
    Assignee: Brown & Williamson Tobacco Corporation
    Inventor: Fritz Schelhorn
  • Patent number: 5339837
    Abstract: In a drying process for increasing the filling power of tobacco material, the cut and moistened tobacco material is conveyed in a drying gas flow, dried within a tubular drying section and subsequently separated from the drying gas. The drying gas has at a feed point into the drying section a temperature of at least 200.degree. C. and a flow velocity of at least 30 m/sec. The flow velocity of the drying gas is reduced in the drying section. The flow velocity of the drying gas at the charge point into the drying section is at the most 100 m/sec. Within the drying section, to reduce the local heat transfer coefficient and the local mass transfer coefficient between the surface of the tobacco material and the surrounding drying gas, along with the reduction of the flow velocity of the drying gas, the flow velocity of the tobacco material is also reduced. At the end of the drying section the drying gas has a flow velocity of at the most 15 m/sec and a temperature of at the most 130.degree. C.
    Type: Grant
    Filed: May 14, 1992
    Date of Patent: August 23, 1994
    Assignee: B.A.T. Cigarettenfabriken GmbH
    Inventors: Werner Hirsch, Arno Weiss, Erhard Rittershaus, Gitta Junemann, Caspar H. Koene, Ingo Pautke, Fritz Schelhorn, Herbert Sommer, William J. Stone
  • Patent number: 4860883
    Abstract: An endless conveyor belt is washed by a cleaning roller engaging the bottom run of the empty belt. The cleaning roller is sprayed by nozzles set counter to the direction of rotation of the cleaning roller. The surface of the cleaning roller is preferably covered with a felt-like material. Excess cleaning fluid is squeezed out by a pressure roller. A scraper, downstream of the cleaning roller, carries residual dirt or cleaning fluid remaining on the conveyor belt into the housing of the washing apparatus.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: August 29, 1989
    Assignee: B.A.T. Cigarettenfabriken GmbH
    Inventors: Per Knaul, Fritz Schelhorn, Roland Witte