Patents by Inventor Joseph Donatelli

Joseph Donatelli 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).

  • Patent number: 5605493
    Abstract: A self-propelled battery operated stone floor polishing machine having dual rotating heads with detachable stone grinding, honing, and polishing pads. The polishing machine includes an integral solution tank for applying a liquid lubrication to the floor through the heads, a recovery tank for collecting the slurry generated by the grinding, honing, and polishing action, and an integral squeegee system that removes the liquid and particle slurry and thereafter transfers the slurry to the recovery tank. The grinding pads are integrated with metallic alloys, bonding industrial diamond abrasives for grinding marble, granite, poured terrazzo, precast terrazzo, cement, concrete, porcelain tile, ceramic tile, teracotta tile, but are not limited to these stone surfaces. A single operator may grind, hone, and polish up to 1,500 square feet of stone floors in a normal work day.
    Type: Grant
    Filed: April 19, 1994
    Date of Patent: February 25, 1997
    Assignee: Clarke Industries, Inc.
    Inventors: Joseph M. Donatelli, Joseph Donatelli, Thomas P. Donatelli, Franklin P. Donatelli, John A. Castaldo