ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,749,990, issued on Sept. 29, was assigned to Northrop Grumman Systems Corp. (Falls Church, Va.).
"AC power transfer over self-passivating connectors" was invented by James R. Windgassen (Chester, Md.) and Harvey P. Hack (Arnold, Md.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems to transform an alternating current into constant-polarity constant or pulsed voltages, provide these to a first group of contacts of an electrical connector assembly such that none of the contacts is subjected to polarity reversal, receive the constant-polarity constant or pulsed voltages from a second group of contacts of the electrical connector assembly,...