Patent ID: 8020836

Claim:
A security barrier for use in a water location, the security barrier comprising: a plurality of barrier units, each barrier unit comprising: a plurality of individual panels, and a rope tube containing a rope connecting said plurality of individual panels; toppers disposed between adjacent barrier units of the plurality of barrier units; a butt plate attached between the toppers disposed between adjacent barrier units; a vertical pin connecting toppers disposed between adjacent barrier units to the butt plate by being placed within the toppers and butt plate, wherein the toppers disposed between adjacent barrier units connect the adjacent barrier units to one another and are configured to disengage the adjacent barrier units from one another when an impact occurs on the security barrier, and wherein an end of each rope of adjacent barrier units is engaged with the vertical pin so that the plurality of individual panels, the toppers and the butt plate are secured to each other such that upon impact to the security barrier, the toppers disengage the plurality of barrier units from each other and the rope within the rope tubes are played out and put under tension such that the rope acts as an arrester cable.