Patents by Inventor Herbert Ruppnig

Herbert Ruppnig 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).

  • Dewatering drum
    Patent number: 4303523
    Abstract: The dewatering drum 3 for devices for dewatering aqueous suspensions of solid material, particularly for sieve belt presses, has a closed shell 8. Profiles 9 are fixed to this closed shell 8 for forming shells 13 obliquely extending relative to the generatrix of the drum shell 8. The channels 13 deviate from the direction of the generatrix and extend either obliquely relative to the generatrix or are arranged in an arrow-like or arcuate manner, noting that the arrow tip or the culminating point 14 of the arc is showing in direction 11 of rotation (FIG. 3).
    Type: Grant
    Filed: January 2, 1980
    Date of Patent: December 1, 1981
    Assignee: Voest-Alpine Aktiengesellschaft
    Inventor: Herbert Ruppnig