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
Apparatus and method for extracting cascading style sheet rules
Imaging lens having five lens elements, and electronic apparatus having the same
Method and apparatus for detection of the remote origin fraction of radon present in a measuring site
Storage apparatus and method including page discard processing for primary and secondary volumes configured as a copy pair
Facial recognition using a sphericity metric
System for highlighting targets on head up displays with near focus plane
Method for assembling a camera module, and camera module
  Randomly Featured Patents
Human endometrial specific steroid-binding factor I, II and III
Oil drainage device
Iron with steam generator
Plastic card provided with electrical contacts
High drive CMOS output buffer with fast and slow speed controls
Storage battery charging station
Non-resonant and decoupled droplet generator
Inducing mechanism for a tool changing device of a machine
Docking slot portion of an object
Composite web system