Patents Assigned to Firma Rottger Jansen-Herfeld
  • Circular saw blade
    Patent number: 4574676
    Abstract: A circular saw blade is formed with a plurality of strain compensating slots which include a number of inner slots extended outwardly from a central bore of the blade and a number of outer slots which are substantially parallel to the inner slots and respectively spaced therefrom in the radial direction and circumferential direction. Each outer slot partially overlaps the nearest inner slot in the radial direction. Each slot has a spiral or circular end portion.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: March 11, 1986
    Assignee: Firma Rottger Jansen-Herfeld
    Inventor: Rottger Jansen-Herfeld