Patents by Inventor Rupert Brunnsteiner

Rupert Brunnsteiner 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).

  • Screw press for separation of liquid from solid-liquid mixtures especially pulp suspensions
    Patent number: 7347140
    Abstract: Screw press for separation of liquid from solid liquid mixtures, especially pulp suspensions, with a casing with perforations for liquid and a screw shaft provided in it between which a circular gap is formed through which the solid liquid mixture is pressed. Furthermore, a counter pressure device in the area of the discharge end of the circular gap is provided. To reduce the space requirement in the discharge area at the discharge end of the circular gap, which makes it possible to reduce the size of the discharge casing and cut costs due to a less complicated design, the counter pressure device has a counter pressure surface, the radius of which is decreasing in the conveying direction of the solid liquid mixture.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: March 25, 2008
    Assignee: Andritz AG
    Inventors: Peter Scheucher, Rudolf Stadlauer, Dietmar Hausjell, Rupert Brunnsteiner
  • Screw press for separation of liquid from solid-liquid mixtures especially pulp suspensions
    Publication number: 20060174781
    Abstract: Screw press for separation of liquid from solid liquid mixtures, especially pulp suspensions, with a casing with perforations for liquid and a screw shaft provided in it between which a circular gap is formed through which the solid liquid mixture is pressed. Furthermore, a counter pressure device in the area of the discharge end of the circular gap is provided. To reduce the space requirement in the discharge area at the discharge end of the circular gap, which makes it possible to reduce the size of the discharge casing and cut costs due to a less complicated design, the counter pressure device has a counter pressure surface, the radius of which is decreasing in the conveying direction of the solid liquid mixture.
    Type: Application
    Filed: January 21, 2005
    Publication date: August 10, 2006
    Inventors: Peter Scheucher, Rudolf Stadlauer, Dietmar Hausjell, Rupert Brunnsteiner