Patents by Inventor Salikh Z. Usmanov

Salikh Z. Usmanov 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).

  • Two-phase AC electric motor control circuit
    Patent number: 4160196
    Abstract: A control circuit of a two-phase AC electric motor wherein the windings and two series capacitors are delta-connected, the winding mid point is brought to one terminal of the power source, and the winding leads connected to the capacitors are brought to the other terminal of the power source through switchgear components.The control circuit is distinguished from the prior-art control circuits in that the mid point of the capacitors is connected to the mid point of the switchgear elements, with the capacitance of each capacitor being equal to the rated phase-shifting capacitance of the electric motor.
    Type: Grant
    Filed: June 22, 1977
    Date of Patent: July 3, 1979
    Inventors: Sagdulla K. Ismatkhodzhaev, Salikh Z. Usmanov, Mirmakhmud A. Mirsagatov, Nasim G. Dzhabarov, Makhirdzhan Takhirdzhanov, Anvardzhan F. Mumindzhanov