ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,595, issued on Sept. 1, was assigned to The Swatch Group Research and Development Ltd (Marin, Switzerland).

"Method for machining ribs or grooves for air or gas bearings of a rotary-shaft-comprising workpiece of a compressor, and method for assembling the components of the workpiece" was invented by Rexhep Gashi (Givisiez, Switzerland), Nicolas Chobaut (Bienne, Switzerland), Patrick Wagner (Berne, Switzerland) and Vincent Pellerin (Chatillon, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for machining ribs or grooves on a workpiece including a shaft (7) and an air or gas axial bearing (24) attached to the shaft or forming a par...