Patents by Inventor Alton D. Anderson

Alton D. Anderson 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).

  • Patent number: 4193346
    Abstract: 1. A vessel detecting apparatus comprising means responsive to the time ving negative pressure signal produced by the passage of a vessel in proximity to the detecting apparatus for producing an electrical signal having a time varying amplitude correlative with the square root of pressure signal, means for integrating said electrical signal over the interval of the negative pressure signal duration, and utilization means responsive to the time integral of said electrical signal.
    Type: Grant
    Filed: March 16, 1953
    Date of Patent: March 18, 1980
    Assignee: The Unites States of America as represented by the Secretary of the Navy
    Inventors: Alton D. Anderson, Nelson N. Estes