Patents by Inventor Valery K. Kolbasov

Valery K. Kolbasov 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).

  • Patent number: 4293238
    Abstract: A ditchless drainlayer comprising a frame mounting a cutter-type working element for laying drainpipes. It is provided with a hydraulic cylinder for changing its angular position and a transmitter of its angular position with an amplifier-converter. Also, a device for controlling the height of the working element made as a support connected to said working element, swivels around the horizontal transverse axis and is provided with a cylinder for turning said support. The swivelling support is connected by its turning cylinder and by an additional amplifier-converter with a transmitter of the height of the working element installed on said element.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: October 6, 1981
    Inventors: Eduard N. Kuzin, Vladimir F. Korelin, Mikhail L. Fainzilber, Jury P. Egorov, Igor V. Erofeenko, Nikolai V. Karev, Jury S. Kozlov, Viktor B. Kudish, Valery K. Kolbasov, Meri I. Bobchenok