US Patent 10220420 Bin sweep power transmission system

A central assembly for a bin sweep apparatus having at least two sweep elements movable substantially independently of each other about the central assembly may comprise a center post and a pair of sweep interface assemblies on the center post. Each sweep interface assembly may be associated with one of the sweep elements of the bin sweep apparatus. In some embodiments, each sweep interface assembly may be configured to sense a position of one of the sweep elements. In some embodiments, each sweep interface assembly may be configured to provide power to one of the sweep elements.