ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,109, issued on June 23.
"Device for checking the correct connection of hydraulic lines" was invented by Andrea Daniele (Reggio Nell'Emilia, Italy) and Riccardo Arrigoni (Rivolta d'Adda, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device configured for checking that hydraulic lines are connected to each other correctly includes male and female quick-release couplings, of which the female quick-release coupling has a coil or solenoid winding with an electrical inductance. An electronic control unit is configured to supply current to the winding and to detect variations of the inductance value with respect to the variation of the position of...