Patents by Inventor Marlene A. Riddle

Marlene A. Riddle 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: 3988520
    Abstract: A three dimensional reproduction of an object is made by photographing the object at predetermined intervals by rotating the camera in a fixed plane 180.degree. about a fixed axis which is at right angles to the plane of rotation. Each photograph is divided at a point perpendicular to the photograph and along the axis of rotation. Each photograph is then embedded in or affixed to a wedge shaped carvable material, the angle of the wedges being the same as the angle of rotation between photographs. The wedges are fitted together such that the dissected portions of each photograph meet each other at the common axis in a linear plane, and all wedges, when fitted together, form a 360.degree. circle. The outlines of the photographed article in the composite of wedges represent substantially a three dimensional reproduction of the article. Each wedge, when carved along the outline, represented by the photograph, thus produces a substantially accurate three dimensional reproduction of the image photographed.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: October 26, 1976
    Inventor: Marlene A. Riddle