US Patent 11912081 Mean dog trailer theft defender lunette lock

A lunette ring lock includes a lunette ring enclosure having a top plate coupled to a bottom plate by a pair of opposing side walls along a width and a front plate having a pair of long edges along its length and a pair of side edges, a pair of matching notches including a top notch in the top plate and a bottom notch the bottom plate centered along a back edge for surrounding a mounting plate to the lunette ring, a locking pin