Patents by Inventor Walter Niklaus Polt

Walter Niklaus Polt 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).

  • Curved belt support apparatus
    Patent number: 6962252
    Abstract: The invention provides a curved belt support apparatus (300) that prevents a curved belt (200) from moving inward by supporting a thick part (220) of the curved belt that thickens in both vertical directions at the outer edge of the belt. An upper roller (370) is brought in contact with the upper inside surface (221) of the thick part (220), a lower guide roller (380) is brought in contact with the lower guide roller (380) is brought in contact with the lower inside surface (222) of the thick part (200), and the upper and lower guide rollers are elastically supported such that they can move up and down. When operated, the upper guide roller (370) and the lower guide roller (380) are moved diagonally upward and downward, respectively, in the direction of the radial inner edge of the curved belt so that the thick part (220) of the belt is released from the upper and lower guide rollers.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: November 8, 2005
    Assignee: Habasit AG
    Inventors: Hiroaki Fujiwara, Walter Niklaus Polt
  • Curved belt support apparatus
    Publication number: 20040035685
    Abstract: The invention provides a curved belt support apparatus (300) that prevents a curved belt (200) from moving inward by supporting a thick part (220) of the curved belt that thickens in both vertical directions at the outer edge of the belt. An upper roller (370) is brought in contact with the upper inside surface (221) of the thick part (220), a lower guide roller (380) is brought in contact with the lower guide roller (380) is brought in contact with the lower inside surface (222) of the thick part (200), and the upper and lower guide rollers are elastically supported such that they can move up and down. When operated, the upper guide roller (370) and the lower guide roller (380) are moved diagonally upward and downward, respectively, in the direction of the radial inner edge of the curved belt so that the thick part (220) of the belt is released from the upper and lower guide rollers.
    Type: Application
    Filed: August 13, 2003
    Publication date: February 26, 2004
    Inventors: Hiroaki Fujiwara, Walter Niklaus Polt