Patents by Inventor Kai Laner

Kai Laner 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: 4683581
    Abstract: An apparatus for panoramic X-ray photography of the area of the dentition and the jaws, comprising a frame part, a bearing part linearly movable in relation to the frame part, and a support arm attached rotatably to the bearing part, the arm having at one end an X-ray film and at the opposite end an X-ray source. The movements of the bearing part, the support arm and the film are synchronized in such a way that an image of an area of desired shape, e.g. the patient's dental arch, is obtained on the film. The invention provides a possibility, without shifting the patient, of altering the enlargement and, additionally of tilting the X-ray beam a desired angle in relation to the horizontal, whereby e.g. teeth oblique in relation to the vertical can be photographed more sharply.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: July 28, 1987
    Assignee: Orion-Yhtyma
    Inventors: Erkki Tammisalo, Heikki Kanerva, Jaakko Aarnio, Markku Wederhorn, Kai Laner
  • Patent number: 4646335
    Abstract: An apparatus for panoramic X-ray photography of the area of the dentition and the jaws, comprising a frame part, a bearing part linearly movable in relation to the frame part, and a support arm attached rotatably to the bearing part, and having at one end an X-ray film and at the opposite end an X-ray source. The movements of the bearing part, the support arm and the film are synchronized in such a way that an image of an area of desired shape, e.g. the patient's dental arch, is obtained on the film. The invention provides the effect that the X-ray beam can be tilted to a desired angle in relation to the horizontal, whereby it is possible with greater sharpness to photograph, for example, teeth slanted in relation to the vertical. For this purpose, the support arm is tiltable about an axis perpendicular to its rotational axis so that, when this axis is vertical, the straight line connecting the source of radiation and the film is obligue to the horizontal.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: February 24, 1987
    Assignee: Orion-Yhtyma
    Inventors: Erkki Tammisalo, Heikki Kanerva, Jaakko Aarnio, Markku Wederhorn, Kai Laner