Patents by Inventor Alexis Neal de Gaston

Alexis Neal de Gaston 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: 4048507
    Abstract: A pair of separated semi-radio opaque sheets having a similar target pattern removed therefrom are placed in parallel alignment with the targets in perpendicular alignment. When exposed to an X-ray beam of a diagnostic X-ray machine, the targets produce a pattern in the radiograph in which the two targets are superimposed in slight misalignment except where the X-ray beam is perpendicular, thereby locating the perpendicular X-ray beam position with respect to the collimator jaws and visual target of the machine.
    Type: Grant
    Filed: February 11, 1976
    Date of Patent: September 13, 1977
    Inventor: Alexis Neal de Gaston