Patents by Inventor Leonid P. Abara

Leonid P. Abara 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).

  • Power electric circuit switching device
    Patent number: 4368443
    Abstract: On an insulating baseboard with a central opening there are located contacts. There are also auxiliary contacts intended for connecting local control circuits of the device. A rotational electromechanical drive is provided to rotate a contactor, and an electromagnetic drive is adapted to reciprocate said contactor for operating contacts. The electromagnet drive has an electromagnet for closing contacts and a plurality of electromagnets for opening contacts. The number of the electromagnets corresponds to the number of the contact fixing devices. The armature of each electromagnet is connected with one of the contact fixing devices.
    Type: Grant
    Filed: April 1, 1981
    Date of Patent: January 11, 1983
    Inventors: Vitaly I. Koshman, Vladimir F. Petrichenko, Boris S. Gnilitsky, Vyacheslav D. Oborotov, Alexandr M. Ubiiko, Leonid P. Abara