Patents by Inventor Johann Hiebaum

Johann Hiebaum 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).

  • Device for drying paper webs, especially tissue paper webs
    Patent number: 7363725
    Abstract: The invention relates to a device for drying paper webs, especially tissue paper webs, with a dryer cylinder 1 and a dryer hood 2, 3 for blowing hot air onto the paper web. It is mainly characterised by the inlet air parts of the dryer hood 2, 3, such as the nozzle basket 9 or the inlet duct 4, being uncoupled from the frame or hood structure 10. This is especially advantageous at operating temperatures of up to 700° C.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: April 29, 2008
    Assignee: Andritz AG
    Inventors: Wolfgang Promitzer, Johann Hiebaum
  • Device for drying paper webs, especially tissue paper webs
    Publication number: 20030177660
    Abstract: The invention relates to a device for drying paper webs, especially tissue paper webs, with a dryer cylinder 1 and a dryer hood 2, 3 for blowing hot air onto the paper web. It is mainly characterised by the inlet air parts of the dryer hood 2, 3, such as the nozzle basket 9 or the inlet duct 4, being uncoupled from the frame or hood structure 10. This is especially advantageous at operating temperatures of up to 700° C.
    Type: Application
    Filed: March 19, 2003
    Publication date: September 25, 2003
    Inventors: Wolfgang Promitzer, Johann Hiebaum