ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,169, issued on March 18, was assigned to Allison Transmission Inc. (Indianapolis).
"Hydro-mechanical park-by-wire shift systems, transmissions incorporating the same, and methods for transmissions" was invented by Ionut Manta (Avon, Ind.) and Nicholas Walke (Indianapolis).
According to the abstract* released by the U.S. Patent & Trademark Office: "Transmissions, park systems for transmissions, and methods for transmissions are envisioned. A transmission includes an input shaft to receive torque from a drive unit, an output shaft to transmit torque to a load, and a park system to selectively brake the output shaft. The park system includes a park assembly, an electro-hydraulic va...