ALEXANDRIA, Va., July 23 -- United States Patent no. 12,365,443, issued on July 22, was assigned to PRATT & WHITNEY CANADA CORP. (Longueuil, Canada).
"Apparatus and methods for aircraft propeller control" was invented by Ella Yakobov (Montreal) and James Robert Jarvo (Saint Bruno de Montarville, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "An aircraft propeller control system for an aircraft propeller with adjustable blade angle has a blade angle feedback ring and a sensor, one of which is mounted for rotation with the propeller. The blade angle feedback ring moves longitudinally along with adjustment of the blade angle and has position markers circumferentially spaced apart at distances that vary a...