Patents by Inventor Igor Levankovsky

Igor Levankovsky 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).

  • Publication number: 20050082899
    Abstract: The invention relates to the mining industry, in particular to a cutting tool for breaking mineral and artificial materials. The inventive tool comprises a working head provided with a hard-alloy insert on one end thereof and a three-part stem on the other end. A clamping sleeve made of elastic material is arranged on the second part of the stem and provided with a slopping element in order to prevent said sleeve from the displacement thereof longitudinally with respect to the stem A protective element provided with a through hole, in which the first part of the stem can be accommodated, is disposed at a distance ranging from 0.6 to 0.85 of the length of the clamping sleeve with respect to the end of said sleeve oriented towards the working head along the longitudinal symmetrical axis of the tool, the diameter of the first part of the stem is larger than the diameter of the third part thereof.
    Type: Application
    Filed: October 31, 2002
    Publication date: April 21, 2005
    Inventor: Igor Levankovsky