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| Number | Title | Issue Date |
| 4962557 | Device for opening inner and outer pontoons of a W-shaped, unfoldable pontoon unit consisting of two inner pontoons and two outer pontoons A device for opening a pontoon unit to form a pontoon bridge, in which two inner pontoons and two outer pontoons are connected by hinges such that they can be opened in the shape of a W. In the collapsed state, the two inner pontoons are connected to an u... | 10/16/1990 |
| 4917034 | Carrying barge An improved two-split carrying barge according to the present invention is aimed at solving the problem of ensuring watertightness at the opening portion of a hold of the barge. The carrying barge of the present invention has left and right parts of a hul... | 04/17/1990 |
| 4878446 | Method for the forming and the deposition in a selected place of a bulk A method for the forming and the deposition in a selected place of a bulk consisting substantially of loose or lightly cohesive material, such as sand or other ground material, for example for use as the core or base of a dam, quay, a bank reinforcement, ... | 11/07/1989 |
| 4644888 | Floating hopper barge with discharging trap doors in the bottom A hopper vessel for storing bulk material such as dredged material, has one or more holds. The holds in their bottom are provided with trap doors that open by moving downwardly below the bottom of the vessel. In shallow water, there is the risk that these... | 02/24/1987 |
| 4616587 | Locking mechanism for a self-dumping barge A locking mechanism for a self-dumping barge which can be opened and closed by means of hydraulic cylinders (18), comprises hooks (38) and transverse bolts (42) cooperating therewith. The transverse bolts (42) are connected to the hydraulic cylinders (18)... | 10/14/1986 |
| 4531469 | Vessel comprising two pivotably connected hull sections Vessel comprising two hull sections, pivotably connected together by hinges positioned above the center of the vessel and above the center of gravity of the separate hull sections. The vessel comprises a propulsion installation with one single propeller. ... | 07/30/1985 |
| 4505215 | Split hopper vessel Split hopper vessel comprising two half hulls which are pivotably connected to each other by a pivot shaft which extends at a high level parallel to the longitudinal axis of the ship. Both half hulls are furthermore connected to each other by means of cyl... | 03/19/1985 |
| 4505214 | Dredged soil conveying vessel In a dredged soil conveying vessel comprising a hold which is open on the bottom side and which is enclosed between two pivotally interconnected ship's halves, each of which has floating power and joining one another along their bottom rims in the closed ... | 03/19/1985 |
| 4409916 | Split vessel or similar vessel The invention relates to a split hopper vessel consisting of two halves, which can swing about a horizontal longitudinal axis between a closed position in which the hold formed by the two halves is closed and an open position in which the two halves are m... | 10/18/1983 |
| 4348282 | Oil-collecting ship An oil-collecting ship having two floating bodies which can be spread apart and which are hinged together at their rearward ends. Each of the floating bodies is a stable ship's body half. The two halves are provided with oil suction devices for picking up... | 09/07/1982 |
| 4261275 | Hopper barge A hopper barge having at least two longitudinal air chambers interconnected pivotally at deck level, which chambers in a loading position bound an upwardly open well and in an unloading position release a discharge opening at the bottom, and comprising at... | 04/14/1981 |
| 4085693 | Mechanical locking device for a longitudinally split bottom dump barge In a longitudinally split bottom dump barge which is opened and closed by rotation of the two longitudinal halves of the barge relative to each other about a longitudinal axis on the top side of the barge by hydraulic pistons, a mechanical device for lock... | 04/25/1978 |
| 3946686 | Bottom-dump vessel A bottom-dump vessel, whose longitudinal hull sections can be pivoted apart by jack means to provide an open bottom for discharge of cargo, has the adjoining edges of the keels of the hull sections interconnected by articulated rods which in substantial s... | 03/30/1976 |
| 3933111 | Dock bumper unit A method and apparatus is provided for dissipating the energy of random dynamic forces exerted against a pier. The dynamic forces are received by a bumper connected to the side of a pier. The normal components of the forces exerted against the bumper are ... | 01/20/1976 |
