ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,604, issued on June 17, was assigned to ZF CV Systems Global GmbH (Bern, Switzerland).
"Operationally reliable parking brake valve assembly having multiway switching in series" was invented by Julian van Thiel (Grossburgwedel, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A parking brake valve assembly for a pneumatic braking system of a vehicle includes a first parking brake valve unit and a second parking brake valve unit. The first parking brake valve unit is actuated by a first parking brake signal and is switchable from a first to a second switching position, and the second parking brake valve unit is actuated by a second parking brake...