Patent ID: 8668424

Claim:
A circular bin unload system for a storage bin, the unload system comprising: a foundation having a floor and a foundation footing; a central tunnel formed in the foundation and terminating at a tunnel opening on a perimeter of the foundation, the central tunnel extending along an intersecting plane that generally bisects the floor into a first and a second half-circle; a primary grain removal sump formed through the floor of the foundation at a location generally near a centerpoint of the storage bin and connected to the central tunnel; at least two radial grain removal sumps formed through the floor of the foundation at locations radially offset from and aligned at substantially the same horizontal height with the central tunnel and located generally between the primary grain removal sump and a sidewall of the storage bin; and a connecting tunnel formed in the foundation between the at least two radial grain removal sumps; wherein the floor of the foundation is positioned to support grain when the grain is being stored within the grain bin, and wherein grain is unloaded from the storage bin through the connecting tunnel and the central tunnel.