Patents by Inventor Josef Steinegger

Josef Steinegger 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).

  • Process and a device for the formation of fiberboard
    Publication number: 20050045299
    Abstract: A process for the formation of fiberboard where the fiber stock suspension is dewatered on two sides between wires or felts, a top wire being provided in the main dewatering zone.
    Type: Application
    Filed: September 16, 2004
    Publication date: March 3, 2005
    Inventors: Franz Petschauer, Josef Steinegger, Thomas Kefer, Johannes Kappel
  • Process and a device for the formation of fiberboard
    Publication number: 20020084051
    Abstract: A process for the formation of fiberboard where the fiber stock suspension is dewatered on two sides between wires or felts, a top wire being provided in the main dewatering zone.
    Type: Application
    Filed: January 17, 2002
    Publication date: July 4, 2002
    Applicant: Andritz-Patenverwaltungs-Gesellschaft m.b.H.
    Inventors: Franz Petschauer, Josef Steinegger, Thomas Kefer, Johannes Kappel
  • Process and a plant for separating low density material from substrate mixtures
    Patent number: 4849116
    Abstract: The invention relates to a process and a plant for separating low density material, in particular plastics, in particular with a density of less than 1, from substrate mixtures, preferably from waste material fractions or presorted garbage fractions optionally containing essential portions of plastics or optionally presorted to paper/plastics fractions, wherein a gravity separation, in particular a sink-float separation, is carried out and the low density material phase, in particular polyolefin plastics, is withdrawn and optionally further processed as a separate fraction after drying.According to the invention, the separating effect and the cleaning of the low density material phase withdrawn are increased by carrying out at least one centrifugal separation, preferably in a hydrocyclone, in addition to at least one gravity separation, preferably in a sink-float basin.
    Type: Grant
    Filed: May 27, 1987
    Date of Patent: July 18, 1989
    Assignee: Maschinenfabrik Andritz Actiengesellschaft
    Inventors: Alfred Weinmann, Josef Steinegger, Peter Scheucher, Roland Konstantiniuk, Wolfgang Leutzendorff, Hubert Hermann