Patents by Inventor Nikolay N. Nikolov

Nikolay N. Nikolov 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).

  • Electric hoist including a planetary reduction gear housing disposed within a hoist drum
    Patent number: 5184807
    Abstract: An electric hoist which includes a drum mounted in a carrying frame, and an electric motor mounted on one end face of the carrying frame, and connected kinematically to a planetary reduction gear, whose housing is disposed totally inside the drum. The housing is connected to the drum by a gear diaphragm and a gear ring. The carrying frame is connected by a connecting shaft and spline joints to the output shaft of a stem, and the gear ring is shaped as an integral part of the drum.
    Type: Grant
    Filed: October 22, 1991
    Date of Patent: February 9, 1993
    Assignee: DF Podem
    Inventors: Nikolay N. Nikolov, Nikolay T. Tzanev, Pavlin S. Pavlov