Patent ID: 7836616

Claim:
A loader coupler comprising: a body comprising a front region, a rear region, an upper region, a lower region, and left and right lateral sides, a tilt actuator pin-on location, and left and right arm pin-on locations; left and right laterally spaced-apart inner rib mounts provided on the body and adapted to mate respectively with left and right ribs of a first type of attachment coupling structure; left and right inner locking regions defined by the body and vertically aligned with the left and right inner rib mounts, respectively; left and right laterally spaced-apart outer rib mounts provided on the body and adapted to mate respectively with left and right ribs of a second type of attachment coupling structure; left and right outer locking regions defined by the body and vertically aligned with the left and right outer rib mounts, respectively; a lock system comprising: (i) a hydraulic cylinder having left and right cylinder rods that are each selectively extensible and retractable; and, (ii) left and right plunger assemblies respectively connected to said left and right cylinder rods and each adapted to move between a locked and unlocked position, said left and right plunger assemblies each comprising a first lock plunger located on a first lock plunger axis and a second lock plunger located on a second lock plunger axis, wherein said first lock plunger axis and said second lock axis lie in different parallel, spaced-apart horizontal planes; wherein said left and right first lock plungers extend into said left and right inner locking regions when said left and right plunger assemblies are located in said locked position such that said left and right first lock plungers are respectively adapted to mate with and capture left and right ribs of a first type of associated attachment structure when the first type of associated attachment structure is mated with said left and right inner rib mounts, said left and right first lock plungers at least partially withdrawn from said left and right inner locking regions when said left and right plunger assemblies are located in said unlocked position; and, wherein said left and right second lock plungers extend into said left and right outer locking regions when said left and right plunger assemblies are located in said locked position such that said left and right second lock plungers are respectively adapted to mate with and capture left and right ribs of a second type of associated attachment structure when the second type of associated attachment structure is mated with said left and right outer rib mounts, said left and right second lock plungers at least partially withdrawn from said left and right outer locking regions when said left and right plunger assemblies are located in said unlocked position.