Patents by Inventor George B. Thiel

George B. Thiel 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).

  • Patent number: 5818605
    Abstract: Method and apparatus for high resolution sensing of engraving stylus movement for dynamic control of an engraving machine while engraving, improved calibration and as a tool used to assist in selecting acceptable gravure cylinders and improving the manufacturing process of making gravure cylinders is described. A variety of sensors are described in conjunction with measuring engraving stylus movement, specifically, sensors that measure small changes in capacitance, resistance, impedance, optical reflections, optical interference patterns, induced eddy currents and voltages induced in a two-material piezoelectric rod which corresponding to positional changes of the engraving stylus.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: October 6, 1998
    Assignee: R.R. Donnelley & Sons Company
    Inventors: Albert Crewe, George B. Thiel, Douglas R. Adler, Riyazhassan M. Asaria