Abstract
A system for unloading items from a container includes: a movable chassis configured for deployment into an open end of the container, to a selectable depth within the container; a conveyor supported by the movable chassis, the conveyor configured to extend from an input end positioned within the container according to the selectable depth to a output end external to the container; and a bulk transfer assembly supported by the movable chassis at the selectable depth and an adjustable height, the bulk transfer assembly including: (i) a feeder configured to engage with the items and displace a portion of the items towards the conveyor, and (ii) a collector configured to receive and direct the displaced items to the input end of the conveyor for transport to the output end of the conveyor.