Patents by Inventor Ferenc Nemecsek

Ferenc Nemecsek 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).

  • Circuit arrangement for detecting and interpreting interferences with automatic machines and particularly coin telephones
    Patent number: 4429183
    Abstract: The present invention comprehends a circuit arrangement for detecting and interpreting interferences with automatic machines and particularly coin telephones. Free use of the automatic machine by manipulations (statically charged persons, electronic cigarette lighters or gas lighters) is prevented by means of a highly sensitive interference discriminator whose input is connected to the housing of the automatic machine or to an antenna, and whose output controls the malfunction detector in such a way that the latter blocks the use of the automatic machine when the discriminator responds.
    Type: Grant
    Filed: October 13, 1981
    Date of Patent: January 31, 1984
    Assignee: International Standard Electric Corporation
    Inventors: Ferenc Nemecsek, Elmar Wilke