US Patent Issued to General Electric on July 21 for "Rotatable trunnions for variable pitch blades" (Ohio, Massachusetts Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,116, issued on July 21, was assigned to General Electric Co. (Evendale, Ohio).

"Rotatable trunnions for variable pitch blades" was invented by Arthur W. Sibbach (Boxford, Mass.), Nicholas Joseph Kray (Mason, Ohio) and Steven M. Taylor (Cincinnati).

According to the abstract* released by the U.S. Patent & Trademark Office: "Rotatable trunnions for variable pitch blades are disclosed herein. An variable pitch blade assembly comprises a trunnion defining a pitch axis, the trunnion including: a first sleeve defining a face of the trunnion; and a second sleeve within the first sleeve, the second sleeve including a pedestal and a column extending from the pedestal; a first spar for a f...