Patent ID: 6659681
Filing Date: 2003-12-09
Classification: E01F

Abstract:
A vertical panel system, comprising:a vertical panel comprising a panel with opposing first and second panel surfaces and a plurality of edges, wherein the plurality of edges include a base edge; a tab extending from said panel base edge and terminating at a tab bottom edge, the tab comprising two opposing side surfaces extending between two opposing side edges, wherein at least one of the tab side surfaces includes a tab groove extending from the tab bottom edge towards the panel base edge and said tab groove does not extend entirely through said tab; and a base comprising a top surface and a slot extending from the top surface downwardly through at least a portion of said base, wherein the slot has a shape which complements at least a portion of the tab and the tab groove; said tab being insertable into said slot to releasably attach said vertical panel to said base, such that when said vertical panel system is impacted by a vehicle, said vertical panel detaches and breaks away from said base.