Patents by Inventor Wallace N. Knutsen

Wallace N. Knutsen 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).

  • Apparatus for sensing target distance
    Patent number: 4010689
    Abstract: A fuze for accurately sensing the distance to a target irrespective of the resence of a medium intermediate of the fuze and the target. The fuze includes a source of radiation which is transmitted to the target and a detector which detects the backscatter from the target and intervening media. The detector output is amplified in an amplifier connected thereto and filtered in a filter connected to the amplifier to provide an output signal which is threshold detected in a threshold device connected to the amplifier. The threshold detected signal is applied to a firing circuit to provide a signal responsive to a predetermined distance above the target.
    Type: Grant
    Filed: December 23, 1970
    Date of Patent: March 8, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Irving I. Sochard, Marcella C. Petree, Wallace N. Knutsen, Frederick E. Warnock, Edward A. White, Jr.