ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,488,949, issued on Dec. 2, was assigned to ABB Schweiz AG (Baden, Switzerland).
"Contactor monitoring" was invented by Gunnar Johansson (Vasteras, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of monitoring a contact force between electrical contacts in a mechanical contactor. The method includes receiving, from a force sensor, a signal including information about a base force sensed by the force sensor between a stationary core and a base; determining a magnitude of the contact force based on the received information; and outputting information based on the determined magnitude to an operator."
The patent was filed on Dec. 9, 2022, und...