ALEXANDRIA, Va., July 9 -- United States Patent no. 12,351,140, issued on July 8.
"Crank sleeve" was invented by Daniel George Burkhardt (Cincinnati).
According to the abstract* released by the U.S. Patent & Trademark Office: "A crank sleeve having a first open-sided hollow cylinder having an open slot extending along its length, and a second open-sided hollow cylinder having an open slot extending along its length and fixed at a right angle to a second end of the second hollow cylinder to provide a continuous open slot from an open first end of the first hollow cylinder to an open second end of the second hollow cylinder. The crank sleeve is attached to the curved crank of a landing gear assembly. A drive means is formed at the second en...