Patents by Inventor Bruno Fedrizzi

Bruno Fedrizzi 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).

  • Road-building machine
    Patent number: 4799820
    Abstract: Apparatus for inserting longitudinal studs in a concrete road covering. By means of a longitudinally running sled and forks, an exact parallel orientation of the longitudinal studs is achieved, as well as their arrangement at a predetermined height. Through the automatic loading of a holder for the longitudinal studs and the synchronization of the device with the motion of the device for inserting cross-studs, a minimum distance between the longitudinal ends and the cross-joints is maintained.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: January 24, 1989
    Assignee: Erhard Thoma
    Inventors: Heinrich Laeuppi, Bruno Fedrizzi