ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,432, issued on Aug. 11, was assigned to Matergenics Inc. (Pittsburgh).
"Electrochemical crack detector" was invented by Mehrooz Zamanzadeh (Pittsburgh), Carolyn Tome (Pittsburgh) and Aaron Ulmer (Pittsburgh).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system for detecting the formation of a crack in a metal joint includes an electrochemical electrical current detection device. Carrier material surrounds the metal joint, at least partially, with conductive media having electrolyte therein. An auxiliary electrode is in electrical contact with the carrier material. The placement of the auxiliary electrode in electrical contact with carrier material...