Resources Contact Us Home
Current adaptive fault indicator

Image Number 5 for United States Patent #5029039.

A fault indicator which senses current in a cable, resets in response to a minimum current and arms a trip arrangement in response to current rising a predetermined amount with respect to time. If the rising current also opens a circuit breaker within a predetermined time and cuts off current to the cable, the indicator trips. If no zero current occurs within the time period, the trip arrangement is disarmed for the next current rise.

  Recently Added Patents
NMR, instrumentation, and flow meter/controller continuously detecting MR signals, from continuously flowing sample material
Method for detection and characterization of a microorganism in a sample using time-dependent intrinsic fluorescence measurements
Systems and methods for picture based communication
Method and apparatus for managing communication services for user endpoint devices
Techniques for distributed storage aggregation
Large scale data storage system with fault tolerance
  Randomly Featured Patents
Hinge with elastic ring return system
Brake and speed responsive controlled transmission
Codimer of norbornadiene and cyclohexadiene
Liquid hydrocarbon compositions of improved behavior in the cold and containing diene polymers
Scanning electron microscope
Air cushion-optical data read head
Vehicle seat mounted headrest and utility console
Image sensing system with histogram modification
Ion exchange removal of impurities from chlorate process liquors
Digital optical beam profiler