Patents by Inventor Charles T. McGraw

Charles T. McGraw 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).

  • Galvanic detector for detecting the cutting of a command wire
    Patent number: 4004540
    Abstract: An apparatus and method for detecting the presence of, and severing command ables submerged in an aqueous medium, utilizing a galvanic current pulse generated by a galvanic cell with one electrode thereof serving as a cable cutter.
    Type: Grant
    Filed: January 10, 1968
    Date of Patent: January 25, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Francis J. Higgins, Charles T. McGraw, Edward L. Sanderson