ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,549,056, issued on Feb. 10, was assigned to ABB Schweiz AG (Baden, Switzerland).
"Electric machine frame fastenerless covers" was invented by William E. Martin (Greenville, S.C.) and John M. Zedek (Simpsonville, S.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric machine includes: a stator with an outer and an inner surface; a rotor disposed inside the inner surface of the stator and configured to rotate about an axis of rotation; a shaft oriented along and configured to rotate about the axis of rotation of the rotor and operably connected to the rotor; a frame integrated with the stator such that an outer surface of the frame is identical t...