Patents by Inventor Zinaida A. Abramova

Zinaida A. Abramova 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).

  • Apparatus for manufacturing foundry cores
    Patent number: 4241779
    Abstract: A feature of the present invention is that an apparatus for manufacturing foundry cores is provided with a device for fastening together halves of core boxes, located before a heating chamber, and with a device for unfastening the halves of the core boxes, arranged behind the heating chamber, each of the core boxes comprising two horizontal rods with conical elements placed in the bottom half thereof and cooperating with the above devices for fastening and unfastening the core boxes, and two vertical rods secured to the top half of the core boxes and having at their bottom ends slots and conical orifices cooperating with the conical elements of the horizontal rods.
    Type: Grant
    Filed: August 7, 1979
    Date of Patent: December 30, 1980
    Inventors: Vitaly A. Zitser, Alexandr V. Melnikov, Leonid V. Bachelis, Jury E. Morozov, Vladimir A. Ivanov, Zinaida A. Abramova