Patents by Inventor Kostadin Doytchinov

Kostadin Doytchinov 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).

  • Tolerance evaluation with reduced measured points
    Patent number: 8447549
    Abstract: A method of determining whether a part satisfies tolerance criteria includes making a multiplicity of measurements of the part, reducing the number of measured points to a number of boundary points that define a boundary within which all measured points are encompassed and comparing the boundary to a tolerance limit of a normal surface to determine whether the part conforms to the tolerance.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: May 21, 2013
    Assignee: Quality Vision International, Inc.
    Inventors: Kostadin Doytchinov, Tibor Prókai, Dimitar Kirjakov
  • TOLERANCE EVALUATION WITH REDUCED MEASURED POINTS
    Publication number: 20120209553
    Abstract: A method of determining whether a part satisfies tolerance criteria includes making a multiplicity of measurements of the part, reducing the number of measured points to a number of boundary points that define a boundary within which all measured points are encompassed and comparing the boundary to a tolerance limit of a normal surface to determine whether the part conforms to the tolerance.
    Type: Application
    Filed: February 11, 2011
    Publication date: August 16, 2012
    Applicant: QUALITY VISION INTERNATIONAL, INC.
    Inventors: Kostadin Doytchinov, Tibor Prôkai, Dimitar Kirjakov
  • Fitting measured data points to tolerance zones having regard for the uncertainty of the measurements
    Patent number: 7983868
    Abstract: Measurement data collected within a measurement frame of reference is fitted to geometric tolerance zones having regard for the uncertainties of the measurement. Geometric freedoms for fitting the measurement data are exploited to fit uncertainty zones associated with the measurement data within the tolerance zones. Typically, the measurement data is multidimensional and the uncertainty zones have different sizes.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: July 19, 2011
    Assignee: Quality Vision International, Inc.
    Inventor: Kostadin Doytchinov
  • FITTING MEASURED DATA POINTS TO TOLERANCE ZONES HAVING REGARD FOR THE UNCERTAINTY OF THE MEASUREMENTS
    Publication number: 20080249731
    Abstract: Measurement data collected within a measurement frame of reference is fitted to geometric tolerance zones having regard for the uncertainties of the measurement. Geometric freedoms for fitting the measurement data are exploited to fit uncertainty zones associated with the measurement data within the tolerance zones. Typically, the measurement data is multidimensional and the uncertainty zones have different sizes.
    Type: Application
    Filed: June 13, 2008
    Publication date: October 9, 2008
    Applicant: QUALITY VISION INTERNATIONAL, INC.
    Inventor: Kostadin Doytchinov
  • Fitting multidimensional measurement data to tolerance zones having regard for the uncertainty of the measurements
    Patent number: 7400992
    Abstract: Measurement data collected within a measurement frame of reference is fitted to geometric tolerance zones having regard for the uncertainties of the measurement. Geometric freedoms for fitting the measurement data are exploited to fit uncertainty zones associated with the measurement data within the tolerance zones. Typically, the measurement data is multidimensional and the uncertainty zones have different sizes.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: July 15, 2008
    Assignee: Quality Vision International, Inc.
    Inventor: Kostadin Doytchinov
  • FITTING MULTIDIMENSIONAL MEASUREMENT DATA TO TOLERANCE ZONES HAVING REGARD FOR THE UNCERTAINTY OF THE MEASUREMENTS
    Publication number: 20070282550
    Abstract: Measurement data collected within a measurement frame of reference is fitted to geometric tolerance zones having regard for the uncertainties of the measurement. Geometric freedoms for fitting the measurement data are exploited to fit uncertainty zones associated with the measurement data within the tolerance zones. Typically, the measurement data is multidimensional and the uncertainty zones have different sizes.
    Type: Application
    Filed: June 1, 2006
    Publication date: December 6, 2007
    Applicant: QUALITY VISION INTERNATIONAL, INC.
    Inventor: Kostadin Doytchinov
  • Roundness standard
    Publication number: 20040075829
    Abstract: A roundness calibration device includes a ring or plug gauge with a wall defining an arcuate surface traversable by a sensing probe. A protuberance, typically in the form of a piston, is displaceably mounted in a radial bore in the wall. A displacement device adjusts the amount of protrusion of said protuberance to locally, radially modify the arcuate surface. A calibrated measuring device accurately determines the amount of protrusion.
    Type: Application
    Filed: December 5, 2002
    Publication date: April 22, 2004
    Inventors: Kostadin Doytchinov, Jim Pekelsky, Lorne Munro