Patents by Inventor Elek Ujfelusi

Elek Ujfelusi 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).

  • Axial flow apparatus with rotating helical chamber and spindle members
    Patent number: 4482305
    Abstract: A multi-purpose flow apparatus of the type which operates on the principle of volumetric displacement, has an internally helicoidal chamber rotatable about its center of gravity and having one of a constant or variable pitch and z.sub.k thread starts and an externally helicoidal spindle rotatable about an axis disposed at its center of gravity. The spindle has z.sub.o =z.sub.k +1 thread starts, the thread division thereof is z.sub.o /z.sub.k times the pitch of the chamber and the angular velocity of rotation of the spindle is z.sub.k /z.sub.o times that of the chamber.
    Type: Grant
    Filed: December 29, 1983
    Date of Patent: November 13, 1984
    Assignee: Orszagos Koolaj es Gazipari Troszt
    Inventors: Lajos Natkai, Elek Ujfelusi