Patents by Inventor Eduard P. Varnello

Eduard P. Varnello 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).

  • Rock-breaking implement for percussive machines
    Patent number: 4291774
    Abstract: A rock-breaking implement, preferably for a self-propelled percussive machine for driving boreholes, having a body, at least a part of the body facing the borehole faces being cylindrical in shape. The body is provided with rock-breaking wedges which are arranged in such a manner that their blades extend radially at the end face of the body. The body has grooves opening outside to the periphery of the body and designed to remove broken rock, the grooves extending along helical lines and intersecting one another so that portions of the body located between the intersecting grooves define the rock-breaking wedges. Edges of said wedges which extend on the periphery of the body within the cylindrical part thereof define a continuous circle when projected to the plane of transverse section of the body and are designed for forming the walls of the borehole.
    Type: Grant
    Filed: May 30, 1979
    Date of Patent: September 29, 1981
    Inventors: Boris V. Sudnishnikov, Veniamin V. Kamensky, Eduard P. Varnello, Sergei K. Tupitsyn
  • Rock-breaking tool for percussive-action machines
    Patent number: 4280573
    Abstract: A rock-breaking tool for preferable use in self-propelled percussive machines for boring wells, comprising a casing with a pointed portion and an end face. The casing has an annular cutting edge formed by the pointed portion and inner tapered surface thereof. The casing is formed with a cone-shaped chamber open at the end face thereof, oriented toward the bottom of a well being drilled, the internal surface of the chamber intersecting with the conical surface of the annular cutting edge. The casing is also provided with ducts communicating the chamber with the surrounding space.
    Type: Grant
    Filed: June 13, 1979
    Date of Patent: July 28, 1981
    Inventors: Boris V. Sudnishnikov, Veniamin V. Kamensky, Eduard P. Varnello, Sergei K. Tupitsyn, Konstantin K. Tupitsyn
  • Air-operated self-propelling rotary-percussive downhole drill
    Patent number: 4209070
    Abstract: The drill has a housing receiving therein a reciprocating striker, effecting percussive action upon the tool for breaking the rock at the face of the hole, mounted at the forward part of the housing, and upon the housing itself for propelling the drill in the hole. The housing also receives therein a mechanism for rotating the tool, including a self-controlled coupling provided with a movable sleeve and a stationary sleeve and adapted to transmit a torque to the tool in only one direction of rotation. The drill is provided with a device preventing a rearward motion of the housing and its rotation during a drilling operation. The drill is characterized by having a return device for retracting the tool from the face after it has been struck by the striker.
    Type: Grant
    Filed: January 10, 1978
    Date of Patent: June 24, 1980
    Inventors: Boris V. Sudnishnikov, Veniamin V. Kamensky, Eduard P. Varnello, Sergei K. Tupitsyn, Boris V. Nazarov