Patents by Inventor Marcel Rigo

Marcel Rigo 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).

  • Plate type chip conveyor
    Patent number: 4890723
    Abstract: A chip conveyor moves material through a conduit using plates of substantially oval shape, the axis of symmetry of which coincides substantially with the axis of the drive chains. The plates consist of two identical half-plates joined together and mounted on the drive chain. The conveyor is especially useful for transporting chips from machine tools.
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: January 2, 1990
    Assignee: Caterpillar Inc.
    Inventors: Michael Debuisson, Joseph A. Jose, Marcel Rigo