Patents by Inventor Edward G. McLeroy

Edward G. McLeroy 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).

  • Sonar system
    Patent number: 4939699
    Abstract: A sonar system having a sonar transmitter which is programmed to broadcast wo sets of several increasing frequency signals, with the frequency gap between each set thereof sufficient to cause them to distinguish between deep and shallow water targets, respectively. A heterodyne receiver receives target echoes of said sets of several frequency signals and converts them to two sets of identical frequency signals which are then readout as a single continuous target display signal.
    Type: Grant
    Filed: December 8, 1966
    Date of Patent: July 3, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Francis J. Murphree, Henry L. Warner, Edward G. McLeroy
  • Marine mine detector
    Patent number: 3943482
    Abstract: A sonar system for detecting and identifying objects laying on or submerged n a sea floor having a dual frequency transmitter and a dual frequency receiver for timely broadcasting and receiving a pair of relatively high and low frequency acoustical signals, respectively, in accordance with a predetermined timing program which facilitates the display and interpretation thereof.
    Type: Grant
    Filed: October 3, 1967
    Date of Patent: March 9, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Francis J. Murphree, Henry L. Warner, Edward G. McLeroy, Jr.