ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,403,879, issued on Sept. 2, was assigned to ZF ACTIVE SAFETY US INC. (Livonia, Mich.).
"Power transmission unit and brake systems using same" was invented by Blaise J. Ganzel (Ann Arbor, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power transmission unit of a single-acting plunger type includes a ball screw, a ball nut driven by the ball screw, and a plunger piston coupled to the ball nut. A block housing at least partially encloses the plunger piston and the ball screw. A plunger chamber is at least partially defined by the block housing and a face of the plunger piston. The plunger chamber is selectively pressurized by reciprocal motion of ...