Patents by Inventor Ronald P. Larsen

Ronald P. Larsen 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: 4249807
    Abstract: A color plotter includes a photoexposure head that projects a beam of polychromatic light onto the photosensitive surface of a color film. The beam of light exposes a spot on the film surface and means are provided for moving the spot across the film surface in a controlled manner to generate a desired pattern or line. Color separation filters are mounted in the exposure head and a mechanism moves the respective filters into and out of the beam of light in accordance with a desired color in the plot. A density selector is also provided to control the degree of film exposure and the resulting color density. The color plotter is capable of producing maps, drawings and other graphic material in multiple colors on the exposed film.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: February 10, 1981
    Assignee: The Gerber Scientific Instrument Company
    Inventors: Ronald B. Webster, Ronald P. Larsen