Patents by Inventor Ralph Emil Beastrom

Ralph Emil Beastrom 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).

  • Multiplexing document card reader with convex lens
    Patent number: 4019065
    Abstract: A document card reader including a row of light sources transmitting light through a corresponding series of column-like cavities within a pair of members between which a document card with punched openings therethrough may move and a convex lens placed so as to receive light transmitted through the document card openings and transmit the light from all of the openings to a photodetector positioned at substantially the focal point of the lens.
    Type: Grant
    Filed: December 24, 1975
    Date of Patent: April 19, 1977
    Assignee: International Business Machines Corporation
    Inventors: Ralph Emil Beastrom, Arlen John Bowen, Ronald James Keller, David George Nutt