ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,467, issued on Oct. 21, was assigned to S&C Electric Co. (Chicago).
"Pulse catching" was invented by Stephen E. Williams (Caledonia, Wis.), Martin T. Bishop (Oak Creek, Wis.) and Michael John Meisinger Sr. (Chicago).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device having a pulse catching function for detecting fault test pulses in an electrical power distribution network in response to a fault. The device includes one or more sensors for measuring current and/or voltage, where the device detects the pulses by loss of voltage followed by identifying one or more of a peak current magnitude of the pulses being greater than a predetermined current...