Patents by Inventor Stojan Hrovat

Stojan Hrovat 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).

  • Method and apparatus for determining precision of numerically controlled machine tool devices
    Patent number: 4662074
    Abstract: A system for determining the precision of a numerically controlled machine ool involves setting the machine tool control to define a circular path. A circular standard is then aligned with the machine tool to sense the desired circular path. A continuous or pointwise sensing, as a function of whether a path-controlled or a point-by-point-controlled machine is being measured, of the aligned standard is performed. A faulty machine tool does not accurately cover the defined circular path. Variations from the desired circle can be plotted and used for evaluation.
    Type: Grant
    Filed: September 15, 1983
    Date of Patent: May 5, 1987
    Assignee: Schweizerische Gesellschaft fur Werkzeugmashinenbau und Fertigungstechnik
    Inventors: Wolfgang Knapp, Stojan Hrovat