Patents by Inventor David L. Darakjy

David L. Darakjy 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).

  • Vented radio frequency shielded enclosure
    Patent number: 4249033
    Abstract: A ventilated enclosure for shielding electronic equipment from radio frequency energy having a minimum wavelength .lambda. which comprises a metal container forming a fully enclosed volume in which the electronic equipment is mounted. Cooling means, such as a fan, directs air through the volume to cool the equipment. The air enters and leaves the volume through an inlet duct and an outlet duct, respectively. Each duct forms a waveguide having a major cross-sectional dimension less than .lambda./2 and a length of the order of 2 .lambda. or greater.
    Type: Grant
    Filed: April 13, 1979
    Date of Patent: February 3, 1981
    Assignee: System Development Corporation
    Inventors: David L. Darakjy, Leland A. Zanteson