Patents by Inventor Andras Gyarfas

Andras Gyarfas 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: 4533912
    Abstract: An equipment is disclosed for displaying alphanumerical and/or pictorial information offering a high working reliability even in case of unfavorable working conditions.The plate of a display board is provided with a ground-color painted surface wherein one or more apertures are shaped along one or parallelly running more axes. Tiltable masks are arranged behind the aperture/s/ along at least one row in a manner that they may by tilting them be turned through the said aperture/s/ so as to cover each one dot of the surface of the said plate. The color of the masks is differing from the ground-color. The display pattern selection is performed by a mechanism comprising two levers arranged in different heights and angle positions at the body of the mask and co-operating with a fixed buffer and another buffer which can be changed over between two working positions the said buffers being arranged on a carriage displaceable along the plate.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: August 6, 1985
    Assignees: Budapesti Muszaki Egyetem, Ikarus Karosszeria es Jarmugyar
    Inventors: Jozsef Gal, Andras Gyarfas, Laszlo Katko, Gabor Racz, Agoston Sarlos, Gyula Vozari