Patents by Inventor Mac L. Berry

Mac L. Berry 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: 4303946
    Abstract: A video exhibit stand and method of exhibiting informational programs comprises a housing having a plurality of large and small openings therein and arranged around the periphery thereof. A plurality of cathode ray tubes and audio speakers are supported within the housing with the screens of the cathode ray tubes secured within the large openings and the audio speakers secured within the small openings. Video transmitter means within the housing conducts informational programs recorded on cassette tapes to a four-way signal splitter which splits the video signal into four distinct but identical signals. These signals are conducted to the inputs of the cathode ray tubes and the audio signals are conducted to the audio speakers. The exhibit stand is portable and may be located at the juncture of hallways where people may view the cathode ray screens from all directions. A plurality of such video stands may be located at remote points in a large auditorium room or in separate remote rooms.
    Type: Grant
    Filed: February 8, 1980
    Date of Patent: December 1, 1981
    Inventor: Mac L. Berry