US Patent Issued to ZF OFF-HIGHWAY SOLUTIONS MINNESOTA on Aug. 4 for "Electro-hydraulic valve for proportional control of spring apply hydraulic release (SAHR) brakes" (Minnesota Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,697,955, issued on Aug. 4, was assigned to ZF OFF-HIGHWAY SOLUTIONS MINNESOTA INC. (North Mankato, Minn.).

"Electro-hydraulic valve for proportional control of spring apply hydraulic release (SAHR) brakes" was invented by Peter Backes (North Mankato, Minn.) and Bryce Tillman (North Mankato, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an electro-hydraulic relay valve and corresponding valve assembly for a SAHR brake. First actuators are arranged to act on a first end of a floating valve spool and second actuators are arranged to act on a second end of the valve spool. One of the second actuators can receive hydraulic pressure from a ...