Patents by Inventor Wolfgang Plienegger

Wolfgang Plienegger 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).

  • Patent number: 11414816
    Abstract: A method for treating a pulp web in a paper or tissue machine with an extended-nip press unit. This extended-nip press unit includes a shoe press roll with a revolving press belt and a backing roll, where the pulp web is dewatered in the extended press nip between the backing roll and the press belt and where the pulp web is carried on the revolving press belt of the press roll after the extended press nip to a transfer fabric that receives the pulp web. The transfer fabric is guided over a stationary transfer device in the transfer area. A corresponding device for treating the pulp web.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: August 16, 2022
    Assignee: ANDRITZ AG
    Inventors: Andreas Anzel, Robert Meitner, Paul Richards, Wolfgang Plienegger
  • Publication number: 20210087746
    Abstract: A method for treating a pulp web in a paper or tissue machine with an extended-nip press unit. This extended-nip press unit includes a shoe press roll with a revolving press belt and a backing roll, where the pulp web is dewatered in the extended press nip between the backing roll and the press belt and where the pulp web is carried on the revolving press belt of the press roll after the extended press nip to a transfer fabric that receives the pulp web. The transfer fabric is guided over a stationary transfer device in the transfer area. A corresponding device for treating the pulp web.
    Type: Application
    Filed: February 19, 2019
    Publication date: March 25, 2021
    Inventors: Andreas Anzel, Robert Meitner, Paul Richards, Wolfgang Plienegger
  • Patent number: 9664445
    Abstract: The invention relates to a tubular reactor with a rotating reactor chamber (9) for thermal treatment of biomass. It is characterized by the reactor chamber (9) being subdivided into zones by ring-shaped plates (10). These zones cause the particles to be retained in a particular area and thoroughly mixed there, i.e., the particles being treated are homogenized and the retention time also becomes more homogenous.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: May 30, 2017
    Assignee: Global Intelligent Fuel AB
    Inventors: Klaus Trattner, Heinrich Pauli, Wolfgang Plienegger, Wolfgang Janisch
  • Publication number: 20130078589
    Abstract: The invention relates to a tubular reactor with a rotating reactor chamber (9) for thermal treatment of biomass. It is characterized by the reactor chamber (9) being subdivided into zones by ring-shaped plates (10). These zones cause the particles to be retained in a particular area and thoroughly mixed there, i.e., the particles being treated are homogenized and the retention time also becomes more homogenous.
    Type: Application
    Filed: August 3, 2012
    Publication date: March 28, 2013
    Inventors: Klaus Trattner, Heinrich Pauli, Wolfgang Plienegger, Wolfgang Janisch
  • Publication number: 20130033007
    Abstract: The invention relates to a high-temperature seal (1) with a sealing ring (5) and a counter-ring (6), characterized by the sealing ring (5) and counter-ring (6) being made of metal. As a result, good contact is achieved with good sealing effect, also at high temperatures. It is an advantage if the sealing ring (5) is made of a high-grade steel and/or the counter-ring (6) is made of a CuNi alloy.
    Type: Application
    Filed: August 3, 2012
    Publication date: February 7, 2013
    Inventors: Heinrich Pauli, Wolfgang Plienegger, Gottfried Schiffer