Patents by Inventor Robert K. Erf

Robert K. Erf 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).

  • Wire surface monitor
    Patent number: 4705957
    Abstract: A non-contact optical detector for on-line inspection of the surface of a wire during manufacturing is improved by an azimuthally symmetric sensitivity and by a time-dependent response that permits discrimination among flaws of different magnitude.
    Type: Grant
    Filed: August 11, 1986
    Date of Patent: November 10, 1987
    Assignee: United Technologies Corporation
    Inventors: Leroy G. Puffer, Robert K. Erf