Patents by Inventor Christopher R. Teumer

Christopher R. Teumer 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).

  • Method and means for remote testing of unused telephone lines
    Patent number: 4945555
    Abstract: A pair of unused telephone lines are connected together at a telephone office main frame by a device which is removably plugged in the main frame to connect a diode between said lines. At a point remote from the central office a testing circuit, which comprises a battery in series with a tone emitter, is releasably connected across the lines first with one polarity with respect to the lines, and then with the opposite polarity. If a tone is emitted for only one connection but not the other, the lines should be in working order.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: July 31, 1990
    Assignee: Rochester Telephone Corporation
    Inventors: Christopher R. Teumer, Mark A. Mendes