ALEXANDRIA, Va., June 25 -- United States Patent no. 12,339,627, issued on June 24, was assigned to ROLEX SA (Geneva).
"Method for manufacturing a timepiece bearing" was invented by William Carreno (Geneva), Vannina Linck (Saint-Julien-en-Genevoix, France), Alexandre Oliveira (Amancy, France) and Cedric Moreaux (Les Rousses, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing a pivot bearing (1) for the pivoting of a timepiece component (2), in particular a pivot stone, includes:-boring (E1) a hole (10a) in a bearing blank (1a) along an axis (A1) intended for the pivoting of a timepiece component (2), this hole (10a) forming a start point (13a) of a first pivot zone (13) of the b...