Patents Assigned to ElectroCon, Inc.
  • Monitoring annunciator apparatus
    Patent number: 4774510
    Abstract: A monitoring annunciator apparatus for monitoring the status of field contact points, which apparatus cooperates with one or more contact points utilizing a single signal wire for each monitored point and a ground wire common to all monitored points, so as to provide separate audible and visual indication, or alternative actuation of a response, upon the occurrence of a change in status of each monitored field contact point and indication of the occurrence of change in the integrity of each wire pair.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: September 27, 1988
    Assignee: ElectroCon, Inc.
    Inventor: Thomas O. Steinke