Patents by Inventor Werner Heyden

Werner Heyden 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).

  • Apparatus for conditioning tobacco
    Patent number: 4069830
    Abstract: A stream of moist tobacco is fed into one end of a rotating drum which is heated by steam circulating coils and wherein a current of heated air flows counter to the direction of tobacco travel. A portion of moisture-laden air issuing at the one end of the drum is evacuated into the atmosphere and the remaining portion of moisture-laden air is intercepted and recirculated into the other end of the drum by way of a duct which contains an adjustable device for mixing the recirculated portion of moisture-laden air with fresh air. The mixture is heated upstream of the other end of the drum, and the moisture content of dried tobacco is measured and compared with a desired moisture content. When the measured moisture content deviates from the desired moisture content, the rate of evacuation of moisture-laden air is changed simultaneously with the rate of admission of fresh air.
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: January 24, 1978
    Assignee: Hauni-Werke Korber & Co. KG
    Inventors: Willi Thiele, Gerd-Joachim Wendt, Werner Heyden
  • Method of conditioning tobacco
    Patent number: 3978868
    Abstract: A stream of moist tobacco is fed into one end of a rotating drum which is heated by steam circulating coils and wherein a current of heated air flows counter to the direction of tobacco travel. A portion of moisture-laden air issuing at the one end of the drum is evacuated into the atmosphere and the remaining portion of moisture-laden air is intercepted and recirculated into the other end of the drum by way of a duct which contains an adjustable device for mixing the recirculated portion of moisture-laden air with fresh air. The mixture is heated upstream of the other end of the drum, and the moisture content of dried tobacco is measured and compared with a desired moisture content. When the measured moisture content deviates from the desired moisture content, the rate of evacuation of moisture-laden air is changed simultaneously with the rate of admission of fresh air.
    Type: Grant
    Filed: July 25, 1974
    Date of Patent: September 7, 1976
    Assignee: Hauni-Werke Korber & Co., KG
    Inventors: Willi Thiele, Gerd-Joachim Wendt, Werner Heyden