US Patent 10539452 Robotic weight measurement and sorting system

A weight measurement system able to hold a plurality of articles and measure the respective weight thereof. A weight measurement system includes a robot arm, a weight measurement device attached to the robot arm, a plurality of hand movement mechanisms attached to the weight measurement device, and a plurality of hands separately moved by respective motions of the plurality of hand movement mechanisms, wherein the weight measurement device measures a weight of a first article held by a first of the hands moved by a motion of a first of the hand movement mechanisms and a weight of a second article held by a second of the hands moved by a motion of a second of the hand movement mechanisms.