Patents by Inventor Ronald C. Helgerson

Ronald C. Helgerson 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).

  • Portable automatic multiple test system for multi-pair cables
    Patent number: 4375050
    Abstract: A portable, compact test set for multi-pair cables having connectors, where the connectors are mated to adapters in the test set and pulses are generated which sequentially test each pair for open and short conditions, using transistor to transistor logic which provides a visual indication of the pair, the wire and the defect detected.
    Type: Grant
    Filed: August 27, 1980
    Date of Patent: February 22, 1983
    Inventor: Ronald C. Helgerson