Gate for marine optic fiber security fence

摘要

A marine gate includes a gate member submersible in a body of water. At least a first post and a second post support the gate member. The gate member is slidably secured on the first and second posts so that the gate member is movable between first and second locations above and below the waterline. The marine gate includes a winch, a cable extending from the winch to the gate member, and an optic fiber net attached at least to the gate member and extending to the sea floor, thereby establishing an underwater fence. Operation of the winch alters a length of the cable, thereby permitting the gate member to be raised to a closed position and to be lowered to an opened position such that a vessel may pass through the gate when the gate member is in the opened position.