Patent ID: 8277645

Claim:
A retractable screen system for installation across a storm drain inlet, the system comprising: a frame comprising: a first side member; and a second side member opposite the first side member, each of the first and second side members comprising a locking gear configured to be reversibly movable from a locked position to an unlocked position; a retractable screen movably coupled to the first and second frame side members, the screen comprises a plurality of openings and is configured to rotate from a closed position to an open position, at least a portion of the retractable screen being removably engagable with the locking gears, the locking gears preventing the screen from rotating from the closed position to the open position when the locking gears are in the locked position; a trigger plate movably coupled to the screen, the trigger plate being configured to rotate from a first position to a second position, at least a portion of the trigger plate being removably engagable with the locking gears, the trigger plate preventing the locking gears from moving from the locked position to the unlocked position when the trigger plate is in the first position, the trigger plate being configured to move out of engagement with the locking gears when water flows against a portion of the trigger plate, allowing the locking gears to move from the locked position to the unlocked position and permitting the screen to rotate from the closed position to the open position.