Patents by Inventor Charles L. Darner

Charles L. Darner 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).

  • Hydrogen generator
    Patent number: 4764909
    Abstract: The power output and thus the range of sonar apparatus is limited by caviion of the water surrounding a sonar transducer at high output power levels. The invention "strengthens" the water surrounding a sonar transducer by increasing the hydrogen content to permit a many fold increase in the transducer output power before cavitation occurs.
    Type: Grant
    Filed: August 7, 1969
    Date of Patent: August 16, 1988
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Charles L. Darner