Patents by Inventor James A. Bains, Jr.

James A. Bains, Jr. 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).

  • Lift-off compensation of eddy current probes by translating without rotation the X-Y coordinate plot of the complex locus of the probe output
    Patent number: 4620152
    Abstract: This invention relates to a method and apparatus for compensating the output signal of a reflection type eddy current probe so as to minimize the change in the phase shift of the probe output signal that otherwise would occur as a result of a change in the spacing of the probe from the surface of the metal sample being inspected or investigated.
    Type: Grant
    Filed: January 11, 1983
    Date of Patent: October 28, 1986
    Assignee: AMF Tuboscope, Inc.
    Inventor: James A. Bains, Jr.
  • AGC Controller for pulsed system
    Patent number: 4451797
    Abstract: This invention relates to automatic gain control (agc) circuitry and more particularly to circuitry for supplying respective automatic gain control signals to an amplifier that repeatedly receives a given sequence of signals. Each one of the signals in each sequence is sampled and compared with a reference voltage in a respective feedback loop. The respective agc loops are coupled to the amplifier in a predetermined sequence to control the gain of the amplifier in a desired manner. The steps in this predetermined sequence are initiated by an external trigger and by the receipt of the signals to be controlled.
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: May 29, 1984
    Assignee: AMF Inc.
    Inventor: James A. Bains, Jr.