ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,380, issued on Feb. 17, was assigned to RTX Corp. (Farmington, Conn.).
"Constant speed accessory gearbox for turbine engine" was invented by Andrew E. Breault (Bolton, Conn.), Joseph T. Connors (Columbia, Conn.) and John Hoult (Waterford, Conn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An accessory drive system for a turbine engine includes a first input shaft that is coupled to a first engine drive shaft, a constant speed drive that is driven at an input speed by the first input shaft that varies, the constant speed drive includes an output that rotates at a constant speed independent of the input speed, an accessory gearbox that includes a fi...