US Patent 8126620 Grain transfer control system and method

A grain transfer control system, and method of use thereof, for automatedly controlling the transfer of grain from a mobile transferor-type vehicle, such as a combine harvester, to a mobile transferee-type vehicle, such as a crop transport, by varying the position and speed of the transferor-type and transferee-type vehicles relative to one another during the transfer operation, especially by varying the position and rate of walk of the discharge spout along at least a portion of the length of a grain holding receptacle of the transferee-type vehicle, to effect a generally even fill of the grain holding receptacle of the transferee-type vehicle along the length of the grain holding receptacle.