Patents by Inventor George J. Joyal

George J. Joyal 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).

  • Protractor with digital readout
    Patent number: 3996670
    Abstract: A protractor having a sine bar connected to the shaft of an electronic encoder and supported to a carriage movable axially and horizontally, but retained in fixed relationship to a table supporting a propeller for measuring and inspecting the blade angles thereof is characterized by its improved accuracy and repeatability.
    Type: Grant
    Filed: August 19, 1974
    Date of Patent: December 14, 1976
    Assignee: United Technologies Corporation
    Inventors: George J. Joyal, George H. Gakeler