ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,208,824, issued on Jan. 28, was assigned to TRINITY NORTH AMERICAN FREIGHT CAR INC. (Dallas).
"Operating mechanism for rail car door" was invented by Adam James Waldo (Westville, Ind.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An operating mechanism for plug-type rail car doors includes first and second links connected to rotatable first and second support bars. The links include respective elongated slots partially overlapping with one another, wherein each slot receives a respective cam. The cams are rotatable together about a rotational axis which is eccentrically arranged relative to both cams. An actuating lever is connected to the cams to enab...