ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,484, issued on Sept. 23, was assigned to Rockwell Automation Technologies Inc. (Mayfield Heights, Ohio).
"Detecting welded relay contacts using electrical pulse" was invented by David Elmiger (Hitzkirch, Switzerland), Kyle B. Adkins (Oak Creek, Wis.), Andrew E. Carlson (Franklin, Wis.) and David M. Messersmith (Kenosha, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system includes a relay system and a controller. The relay system includes a plurality of relays. The controller is configured to transmit a close signal to a first relay of the plurality of relays, and to transmit a pulse signal to a second relay of the plurality of relays. The ...