Patents by Inventor Sebastiano D'Apuzzo

Sebastiano D'Apuzzo 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).

  • Drill bit for drilling holes in composite fiber/resin laminates
    Patent number: 4440532
    Abstract: A drill bit for drilling holes in laminates consisting of a matrix of plastic material incorporating graphite or glass fibers as used particularly in the aviation industry. The bit comprises cutting elements each of which presents a first straight sharp edge of very low conicity and positive rake and a second sharp edge having a convex curvature (FIG. 1).
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: April 3, 1984
    Assignee: Aeritalia Societa Aerospaziale Italiana p.A.
    Inventor: Sebastiano D'Apuzzo