Patents by Inventor Roger D. Halden

Roger D. Halden 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).

  • Continuity tester for long wires
    Publication number: 20020021132
    Abstract: A continuity tester for testing continuity of long electrical lines having two units with one unit located at each end of the line to be tested. A battery is provided with each unit. A ground lead is provided with each unit for connecting the battery through a buzzer to ground. Further, a probe lead is provided for connecting the battery to one end of the line to be tested. The first unit uses the battery with one polarity and the second unit uses the battery with a reversed polarity.
    Type: Application
    Filed: June 21, 2001
    Publication date: February 21, 2002
    Inventor: Roger D. Halden