Patents by Inventor George S. Khait

George S. Khait 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).

  • Optimum screw
    Patent number: 5195631
    Abstract: A screw pump is disclosed in which a screw portion of the pump is constructed having an eccentric portion e, wherein the pitch S of the screw is equal to 4e. The screw channel depth h, is equal to 2e (twice the eccentricity). The resulting screw has an optimum geometric shape allowing maximum pumping capability to be achieved.
    Type: Grant
    Filed: October 1, 1991
    Date of Patent: March 23, 1993
    Assignee: Development Products, Inc.
    Inventors: George K. Berman, Vladimir N. Kestelman, George S. Khait