US Patent Issued to Rolls-Royce on Sept. 8 for "Electrical machine having stator sleeve" (British Inventor)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,732,050, issued on Sept. 8, was assigned to Rolls-Royce plc (London).

"Electrical machine having stator sleeve" was invented by Paul A. Smeeton (Derby, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided an electrical machine comprising: a rotor at least partially disposed within a rotor chamber; a stator core coaxially arranged with the rotor chamber; and a stator sleeve. The stator sleeve is annular and is positioned between the stator core and the rotor chamber. The stator sleeve comprises a magnetic material having a relative permeability of at least and an intrinsic coercivity no greater than 1 kAm-1."

The patent was fil...