Abstract: This invention is a collapsible panel assembly having a front panel, a back panel, and at least one dry erase sheet carried by said front panel. The invention can have a first position where the collapsible panel assembly is generally a triangular shape and a second position where the collapsible panel assembly is generally arranged in a stacked configuration. Dry erase sheets can be removed from the front panel to reveal underlying sheets.

Abstract: A battery testing and sorting apparatus that includes an upwardly inclined conveyor having a conveyor drive for moving batteries to be tested and sorted. The conveyor includes a battery feeding section disposed along the conveyor for positioning the batteries laterally onto the conveyor so that terminals of the batteries are in a horizontal orientation on the conveyor. A testing section is disposed along the conveyor upstream from the battery feeding section for testing the electrical condition of the batteries as they move along the conveyor. A sorting section is disposed along the conveyor upstream from the testing section for ejecting the batteries from the conveyor according to the electrical condition of the batteries determined by the testing section. In this manner, a battery testing and sorting apparatus is provided for continuously sorting large quantities of batteries into groups based on the electrical condition of the batteries.

Abstract: A sheet transfer method for carrying a predetermined number of sheets from a destacking position to a restacking position by a vertically and horizontally movable transfer unit incorporating an entry-conveyor, a mid-conveyor, and an exit-conveyor. In this method, at the time of destacking a pile from the remaining stack, the advance of the transfer unit from one end to the other end of the stack, and the rotation of the pair of the entry-conveyor and mid-conveyors are concurrently effected substantially at the same speed, but in directions opposite to each other until the pile is progressively supported on the mid-conveyor. After the arrival of the transfer unit at the restacking position, the retraction of the transfer unit toward the destacking position, and the actuation of the pair of the mid-conveyor and exit-conveyor are concurrently effected substantially at the same speed, but in directions opposite to each other until the pile is clear of the transfer unit.