Abstract: An apparatus for handling electronic devices in a system that assigns a category corresponding to one of a plurality of predetermined categories to the electronic devices and sorts the electronic devices according to the categories is provided. A plurality of platforms, each for supporting one tray that carries one or more electronic devices, and each platform corresponding to one of the categories, are vertically stacked in a predetermined order according to the plurality of categories. A group of the stacked platforms are separated from a platform located at a first position corresponding to a particular category corresponding to the category of an electronic device to expose a tray and enable the electronic device to be placed on the tray. A method of handling electronic devices is also provided.

Abstract: An apparatus and method for picking up parts from a conveyor belt, moving them to a test rig for testing, and returning tested parts to the belt, in which a rotatable shaft is rotated back and forth between first and second positions. The shaft carries first and second pick-up heads at its free end, which are oriented perpendicular to one another and at angles of 45.degree. to the shaft. In the first position, the first pick-up head is aligned with a conveyor while the second pick-up head is aligned with a test rig, while the pick-up head positions are reversed in the second position. First and second drive assemblies are arranged to drive each of the pick-up heads between extended and retracted positions in each of the two rotatable shaft positions. In each of the first and second positions, one of the pick-up heads deposits a tested part onto the conveyor and picks up a new part for testing while the other pick-up head holds a part for testing at the test rig.