Patent ID: 8286800
Filing Date: 2012-10-16
Classification: B07C

Abstract:
1. A separation method of separating first targets and second targets from a separation subject in which the first targets and the second targets are mixed, said separation method comprising: conveying the separation subject; distinguishing the first targets in the separation subject; obtaining positional information of the first targets distinguished in said distinguishing operation; dropping the separation subject from an end of a conveyance path; striking each of the first targets that is dropping with a first airflow, from under a drop path of the first target, so as to change the drop path of the first target upward, the first airflow being generated in a pulse mode; and blowing a second airflow on the first target, which is blown up to or above a predetermined height in said striking operation, so as to change the drop path of the first target such that the first target is blown a longer distance, the second airflow being generated at the predetermined height and in the same orientation as the first airflow shot out in said striking operation.