Patents by Inventor Evgeny I. Ryabokon

Evgeny I. Ryabokon 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).

  • Compression-vacuum percussive action machine
    Patent number: 4991664
    Abstract: A compression-vacuum percussive action machine has a housing (1) which accommodates a cylinder (2) containing a hammer (7) and a piston (3) separated from the hammer (7) by an air cushion (8), a crank (5) connected to the piston and linked with a drive shaft (6) by a counterweight (10) whose center of mass is offset relative to a straight line (A--A) connecting the points of intersection of the axes (O.sub.1 and O.sub.2) of the drive shaft (6) and crank (5) with a plane perpendicular to the axis (O.sub.1) of the drive shaft (6). The projection of the counterweight (10) plotted on this plane is defined by a shape having two portions (12, 13) of which one (12) is symmetrical with the straight line. (A--A) passing through the points of intersection of the axes (O.sub.1 and O.sub.2) of the drive shaft (6) and crank (5) with a plane perpendicular to the axis (O.sub.
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: February 12, 1991
    Inventors: Jury N. Kolgan, Nikolai M. Kirjushin, Ivan A. Prokhorov, Vitold A. Kezik, Evgeny I. Ryabokon