Patents by Inventor Raymond L. Kraley

Raymond L. Kraley 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).

  • Combined watt and var transducer
    Patent number: 4055803
    Abstract: A transducer provides simultaneous indications of watts and vars when connected to a power line. For a single phase power line the transducer utilizes an internal power supply and, in addition, one current transformer, one voltage transformer, one modulator and suitable electronic switches, filters and voltage to current amplifiers.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: October 25, 1977
    Inventors: Raymond L. Kraley, Barry M. Pressman, Maghar S. Chana