US Patent 11472642 Bin unloader

An article-unloading apparatus comprising a bin assembly including a bag inside a bin. The bin assembly is raised and lowered by a lift and tilted, when raised, to dump articles onto a decline conveyor, such as a ramp. A winch attached to the bag moves the bottom of the bag through the bin to help push articles from the tilted bin assembly. A camera takes a video image of the articles entering the ramp to detect clumps. Stops on the ramp are selectively actuated to block the bottom-most articles in a clump to help separate articles.