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
System and method for managing self-refresh in a multi-rank memory
Test framework of visual components in a multitenant database environment
System and method for providing advertising content using a group training system
Magnetic impedance element and magnetic sensor using the same
Optical modulation element
Nano-pigment inkjet ink composition that has a low odor and is environmentally-friendly
Magnetic element with top shield coupled side shield lamination
  Randomly Featured Patents
Method and apparatus for computing checksum of packets
Valve stem actuator
Gas valve switch structure of gas stove
Planetary gear type transmission system
Central control system and method for controlling air conditioners
Machine for cleansing articles
Micro-electromechanical switch fabricated by simultaneous formation of a resistor and bottom electrode
Display screen or portion thereof with graphical user interface
Linear motion bearing with plate retaining structure having a plurality of pieces
Method and apparatus for recovery of water-immiscible liquids from water-bearing formations