ALEXANDRIA, Va., April 9 -- United States Patent no. 12,269,518, issued on April 8, was assigned to Pennsy Corp. (West Chester, Pa.).
"Knuckle pin" was invented by Zachary Ryan Brook (Leola, Pa.), Manuel Tavares (West Chester, Pa.), Aaron Stern (West Chester, Pa.) and Wayne H. Murphy (Pottstown, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A knuckle pin, coupling system, and method for producing a knuckle pin are provided, the knuckle pin having a cylindrical body with a longitudinal slot therein separating vertical edges of the cylindrical body, with one or more first retaining elements that span outward of the cylindrical body, and a second retainer that includes one or more of opposing apertures, an...