Patents by Inventor Mark R. Bradshaw

Mark R. Bradshaw 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: 4153935
    Abstract: A navigational aid enables the effect of a course and/or speed alteration of one vessel on the nearest possible approach distance of another vessel to be calculated, using data readily obtainable from a simple relative radar display on said one vessel. The aid comprises a plurality of sealed manually-settable means for individually setting in data inputs respectively representative of the following:(1) the minimum nearest approach distance if no course or speed change is made;(2) the range of said other vessel;(3) the present speed of said one vessel;(4) the proposed course alteration;(5) the proposed speed alteration; and(6) the time for which the proposed course and speed will be held.The aid further comprises means to compute from the foregoing input data the resultant nearest possible approach with the proposed manoeuvre, and indicating means to provide an indication of said resultant nearest possible approach.
    Type: Grant
    Filed: January 25, 1977
    Date of Patent: May 8, 1979
    Assignee: Grundy & Partners Limited
    Inventors: Keith D. Jones, Geoffrey R. Cowap, Mark R. Bradshaw