Patents by Inventor Dane J. Hansen

Dane J. Hansen 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: 4171882
    Abstract: A light reflective projection system is disclosed. The system includes a combination of a light source, at least one reflective or transparent disc having means for rotation thereof and a lens. In one embodiment, disc rotation is provided by the rotatable turntable of a record player. In this embodiment, the reflective or transparent discs may be carried by a record mounted on the record player, by a pedestal member mounted over the spindle of the record player, or by a differential speed ring having drive wheels which bear upon and are rotated by the label portion of the rotating record. A stationary support provides a location for an additional disc. The light source and lens are so mounted that light rays from the light source are projected downwardly through or onto one or more of the transparent or reflective rotating discs, then upwardly through the lens for projection upon the viewing surface.
    Type: Grant
    Filed: June 1, 1978
    Date of Patent: October 23, 1979
    Inventors: Eugene Johnson, III, Dane J. Hansen