Patents by Inventor Herbert Zegg

Herbert Zegg 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).

  • Filter disc
    Publication number: 20070056895
    Abstract: A filter (1) with several rotating filter discs (3) mounted on a shaft (2) and which are provided with a porous filter medium. In one aspect it is characterised by elastomer elements (8, 8?) being mounted on the shaft (2) as spacers between the individual filter discs (3). In another aspect, the invention refers to a filter disc (3) for a filter (1) of this kind, wherein the disc (3) has a rigid support body with distinct drainage channels (21) leading to a central opening for receiving the shaft (2) and an attached surrounding filter medium or membrane (23).
    Type: Application
    Filed: November 10, 2006
    Publication date: March 15, 2007
    Inventors: Herbert Zegg, Werner Erkinger
  • Filter
    Patent number: 7163622
    Abstract: The invention refers to a filter 1 with several rotating filter discs 3 mounted on a shaft 2 and which are provided with a porous filter medium. It is characterized by elastomer elements (8, 8?) being mounted on the shaft (2) as spacers between the individual filter discs (3). In addition, the invention refers to a filter disc 3 for a filter 1 of this kind.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: January 16, 2007
    Assignee: Andritz AG
    Inventors: Herbert Zegg, Werner Erkinger
  • Method and device for cross-flow filtration
    Patent number: 6808634
    Abstract: The invention relates to a process for cross-flow filtration with membranes. It is mainly characterized by the membranes being moved relative to each other. The invention also relates to a device for carrying out the process, where at least two hollow membrane discs are provided, which rotate around one hollow shaft each.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: October 26, 2004
    Assignee: Andritz AG
    Inventor: Herbert Zegg
  • Filter
    Publication number: 20030155292
    Abstract: The invention refers to a filter 1 with several rotating filter discs 3 mounted on a shaft 2 and which are provided with a porous filter medium. It is characterised by elastomer elements (8, 8′) being mounted on the shaft (2) as spacers between the individual filter discs (3). In addition, the invention refers to a filter disc 3 for a filter 1 of this kind.
    Type: Application
    Filed: March 26, 2003
    Publication date: August 21, 2003
    Inventors: Herbert Zegg, Werner Erkinger