Patents by Inventor Hans-Werner Sohn

Hans-Werner Sohn 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).

  • Sprinkling device for metered application of super absorbing swelling substances
    Patent number: 5762712
    Abstract: A sprinkling device for applying powdery to granulated materials, particularly super-absorbing swelling substances (SAP-material) to a continuously moving material web in the manufacture of suction cores for sanitary napkins, disposable diapers, etc. The SAP-material is withdrawn from a supply container by a toothed belt of a conveyor system. The toothed belt has conveying troughs of varying shapes to enable an exact volumetrically metered amount of SAP-material to be disposed onto a predetermined surface of the material web.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: June 9, 1998
    Assignee: Winkler & Dunnebier Maschinenfabrik und Eisengiesserei KG
    Inventor: Hans-Werner Sohn