Patent ID: 7331302

Claim:
A security apparatus comprising: at least one door of a ship or of a water vessel and at least one outer casing; the at least one door having a first retracted position, where said at least one door is located within the at least one outer casing, and a second extended position, where said at least one door is located outside the at least one outer casing; a closing mechanism comprising: a door outer slide tube, which is connected to the at least one door, a door inner slide tube, the door outer slide tube slides along the door inner slide tube, the at least one door being stationary relative to the door outer slide tube, a door closure cable, at least one pulley, and an elasticized rope, which is able to store a potential energy, the door closure cable is connected to the door outer slide tube and runs through the at least one pulley and is further connected to the elasticized rope; a release apparatus comprising: a release lever, a release cable, and a door keeper, the release lever is connected to a first end of the release cable; the door keeper is connected to a second end of the release cable; the release lever having a first position and a second position; in the first position, the release lever, which is connected by the release cable to the door keeper, positions the door keeper to block the door outer slide tube from moving along the door inner slide tube, in the second position, the release lever is moved such that the door keeper no longer blocks the door outer slide tube from moving along the door inner slide tube and allows the release of the potential energy of the elasticized rope to push the at least one door out of the at least one outer casing.