Patent ID: 7841142

Claim:
A stack-on panel assembly for panel-based partition systems of the type including at least one base panel having a rigid rectangular interior frame with tubular frame uprights disposed adjacent opposite sides thereof with open tops and at least one fastener end extending into an interior portion of one of the frame uprights, comprising: a stacker panel having a rigid rectangular configuration with a bottom portion thereof abuttingly supported on a top portion of the base panel, and including at least one vertically extending slot disposed along one side thereof, and a first spring latch member disposed adjacent to said slot; at least one connector bracket having: a lower portion thereof received in the interior portion of the one frame upright, and including a horizontally extending aperture receiving the fastener end therein vertically locating said connector bracket relative to the base panel; an upper portion thereof received in said slot in said stacker panel horizontally locating said stacker panel relative to the base panel; and a second spring latch member located adjacent to said upper portion of said connector bracket and configured for selectively engaging said first latch member on said stacker panel, whereby in an installed position, said first spring latch member and second spring latch member engage and define a snap lock that positively, yet detachably, connects said stacker panel on the base panel in a vertically stacked relationship.