Patents by Inventor Charles Maucher

Charles Maucher 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).

  • Ultrasonic measuring instrument
    Patent number: 4386527
    Abstract: An instrument for distinguishing between gray and ductile cast iron pipes. Signals from a relatively movable pair of ultrasonic probes and a distance transducer are inputs to a circuit for generating a signal related to the velocity of sound through a chord of a pipe.
    Type: Grant
    Filed: May 4, 1981
    Date of Patent: June 7, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Charles Maucher