Patents Assigned to Network Technologies Group, LLC
  • Patent number: 6822432
    Abstract: A system and method for testing a cathodic protection system includes a cathodic protection rectifier configured to apply a voltage across a pipeline and a reference point. The method includes measuring a magnitude of an output voltage of the cathodic protection rectifier, transmitting to a site remote from the rectifier, the measured output voltage magnitude using a cellular control channel, receiving the transmitted measurement at the remote site, and using the transmitted measurement to determine whether the cathodic protection system is operational.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: November 23, 2004
    Assignee: Network Technologies Group, LLC
    Inventor: Thomas N. Hilleary
  • Patent number: 6774814
    Abstract: A test point monitor is disclosed which includes, a processor, a cellular modem interfaced to the processor, and at least one analog sensor interfaced to the processor. The monitor is configured with a wake-up cycle, and further configured to periodically measure a voltage during the wake-up cycle utilizing the sensor, and further configured to transmit the measured voltage over a cellular control channel utilizing the modem.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: August 10, 2004
    Assignee: Network Technologies Group, LLC
    Inventor: Thomas N. Hilleary