Patents by Inventor Philip Edward Harley

Philip Edward Harley 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).

  • Automatic graphing apparatus
    Patent number: 3965477
    Abstract: Apparatus for producing a graph of a function represented by a varying analogue input signal supplied to the apparatus, comprising display means adapted to display in a graphing operation the graph of the function, calculating means adapted to receive the analogue input signal and to calculate the value of a parameter of the function, and control means operable to interrupt the operation of the display means at preselected points in the graphing operation and to cause the display means to display the value calculated by the calculating means and thereafter to resume the graphing operation.
    Type: Grant
    Filed: April 4, 1974
    Date of Patent: June 22, 1976
    Inventors: James Hambleton, Peter Frank Davies, Philip Edward Harley, Gianfranco Corsi