Patents by Inventor Ivan V. Shelyagin

Ivan V. Shelyagin 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).

  • Method of abrasive electroerosion grinding
    Patent number: 4956056
    Abstract: A method of grinding includes the application to an abrasive wheel in a grinding zone of a pulse voltage, arranged out of the grinding zone is an electrode to which is applied a rectified voltage having an amplitude and a ripple factor ensuring formation of an oxide film on a surface of the wheel, and use is made of a coolant having a conductivity from 2.multidot.10.sup.-3 to 2.multidot.10.sup.-2 ohm.sup.-1 cm.sup.-1.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: September 11, 1990
    Inventors: Lidia S. Zubatova, Eduard Y. Grodzinsky, Ivan V. Shelyagin, Alexandr A. Zaitsev