Patent attributes
An apparatus is disclosed for opening and closing a grain or access door on a barge lid or cover, the grain door having a latch connecting the grain door to the barge lid, the apparatus supportable by an overhead lifting system. The apparatus can include a base which is supportable by the overhead lifting system and a mechanical arm assembly connected to the base, the mechanical arm assembly including a first arm rotatably connected to the base, a second arm connected to the first arm, a latch engagement member connected to the second arm; and an actuator connected between the first arm and the second arm, the actuator operable to move the second arm relative to the first arm to disengage the latch on the grain door from the barge lid via the latch engagement member and swing the grain door from a closed position to an open position.
