Patents by Inventor Virgilio Rovere

Virgilio Rovere 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).

  • Grinding mill
    Patent number: 3933317
    Abstract: The mill includes coaxial inner and outer cones mounted in telescopic relationship, each having facing helical ribs with the ribs on one cone crossing the ribs on the other cone so that material received intermediate the two cones at the apex of the cones passes to the base. The two cones are preferably relatively adjustable to control particle size.
    Type: Grant
    Filed: August 12, 1974
    Date of Patent: January 20, 1976
    Inventor: Virgilio Rovere