Patents by Inventor Kalman E. Dankovich, II

Kalman E. Dankovich, II 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).

  • Apparatus and method for retrieving lost materials in slanted boreholes
    Patent number: 5224548
    Abstract: A method and apparatus are disclosed for clearing debris and for retrieving lost materials from slanted boreholes. The apparatus has a central shank which is attachable to drill pipe and an auger-like helical plate wound around the shank. A cylinder with a back plate and partial front plate encloses the helical plate. In practicing the method, debris is cleared and lost materials are retrieved from a slanted borehole by rotation of an auger-like apparatus, preferably the apparatus of the invention, along the path of the borehole.
    Type: Grant
    Filed: December 26, 1991
    Date of Patent: July 6, 1993
    Inventor: Kalman E. Dankovich, II