ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,381,365, issued on Aug. 5, was assigned to ALEXSAVA Holdings Ltd. (St Peter Port).

"Brush wear indicator" was invented by Anthony L. Morgan (Port Talbot, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is a brush wear indicator comprising and brush (3) moveable within a holder (2). The brush (3) is urged against a collector surface (10) of a rotor by a spring (4) which is mounted to a bracket (6) supported by the holder (2). A proximity sensor (5) is mounted to either a) the spring (4) or the brush (3), or b) a non-moveable part of the indicator which includes the bracket and configured to determine the distance to a) the no...