Patents by Inventor Pierre Quinart

Pierre Quinart 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).

  • Machine tool structure
    Patent number: 4704773
    Abstract: The structure comprises a rotary conventional lathe work piece holding spindle, mounted for sliding on vertical guides and a tool holding assembly mounted for sliding along two perpendicular horizontal axes. The tool holding assembly receives fixed tools and motorized auxiliary units whose rotational axis is either parallel to the axis of the spindle or perpendicular.
    Type: Grant
    Filed: June 12, 1986
    Date of Patent: November 10, 1987
    Assignee: Machines Outils Wirth et Gruffat
    Inventors: Pierre Quinart, Georges Schoellhammer, Pierre Tableau, Francois Vivien