Patents by Inventor Aaron Z. Robinson

Aaron Z. Robinson 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).

  • Secret depth sounder
    Patent number: 4086560
    Abstract: 1. The method of measuring depth of a body of water comprising the steps of ecording the natural ambient noises at the location where the depth is to be measured, projecting the recorded noises back into the surrounding body of water, receiving the reflection of said projected recorded noises, and correlating the reflected noises with the projected recorded noises delayed in time.
    Type: Grant
    Filed: April 3, 1959
    Date of Patent: April 25, 1978
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Thomas F. Johnston, Aaron Z. Robinson