ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,106, issued on June 24, was assigned to ITREC B.V. (Schiedam, Netherlands).
"Marine knuckle boom crane" was invented by Diederick Bernardus Wijning (Schiedam, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "A marine knuckle boom crane includes a pedestal and a crane housing rotational relative to the pedestal. A knuckle boom assembly is attached to the crane housing and includes a main boom and a spreader type jib. A hoisting system includes a first departure sheave and a second departure sheave on the jib, and a third departure sheave mounted to the main boom or to the crane housing. One or more winches drive a first, second, and third c...