Patents by Inventor Marcella Petree

Marcella Petree 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).

  • Flush mounted low impedance grounding cone
    Patent number: 4362898
    Abstract: A device for grounding a coaxial cable to a ship's hull or bulkhead having n opening for the cable, is configured to include a split metallic cone with serrated apex portions fastenable around a bared shield of the coaxial cable, and flanged base portions securable to the ship's hull and overlying the opening, such that the split cone forms substantially 360.degree. of coupling between the bared shield and the ship's hull. This configuration increases the area and effectiveness of electrical contact between the bared shield and the ship's hull while decreasing the effective inductance and overall impedance, thereby reducing the amplitude of high frequency transients caused by an externally induced electromagnetic pulse (EMP) or any electromagnetic interference source having a similar frequency range.
    Type: Grant
    Filed: December 9, 1980
    Date of Patent: December 7, 1982
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Bernard Zendle, Marcella Petree