Patents by Inventor David Gifford Burder

David Gifford Burder 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: 6061424
    Abstract: Method and apparatus for stereoscopic images using a viewing grid and not requiring a lenticular viewing screen. In one embodiment applied to roentgenography, the apparatus includes an X-ray source, a table or cradle disposed beneath the X-ray source for securing an image subject such as a patient, and a recording medium cassette disposed beneath the table or cradle. The cassette includes a film comprising a base, an emulsion on a first side of the base and a viewing grid on an opposite second side of the base, an image intensifying screen for exposing the emulsion films for recording an image, and a recording grid located between the phosphorous screen and the emulsion side of the film, and fixed in position relative to the image intensifying screen for masking a plurality of strips of predetermined width, of the emulsion film. During exposure, relative movement between the cradle and cassette is maintained so as to capture various views of the image subject on the emulsion film.
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: May 9, 2000
    Inventors: Reuben Hoppenstein, David Gifford Burder