Patents by Inventor Eugene E. Covert

Eugene E. Covert 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).

  • Vacuum cleaning
    Patent number: 3963515
    Abstract: A new vacuum cleaning nozzle described includes a conventional vacuum cleaner suction nozzle typically used for cleaning streets or carpets and in addition short airfoils at incidence or vortex generating air nozzles supported from the nozzle and directed downward ahead of the suction nozzle to form a series of vortices for providing very high local velocities effective in dislodging debris while avoiding propelling the particles dislodged far from the suction zone.
    Type: Grant
    Filed: December 2, 1974
    Date of Patent: June 15, 1976
    Assignee: Massachusetts Institute of Technology
    Inventors: Charles W. Haldeman, Eugene E. Covert