ALEXANDRIA, Va., May 5 -- United States Patent no. 12,617,376, issued on May 5, was assigned to DELLNER BUBENZER AB (Borlange, Sweden).

"Parking brake system, computer-implemented method of controlling a parking brake system of a rail vehicle, computer program and non-volatile data carrier" was invented by Viktor Prim (Sandviken, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A parking brake system for a rail vehicle (100) contains a brake actuator (120) for receiving a parking-brake command (cmdP) and producing an electric brake-force signal (BF). A brake unit (200) contains first and second pressing members (211, 212) and a rotatable member (110) being mechanically linked to a wheel (105) of the rai...