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| Number | Title | Issue Date |
| 7775383 | Hoisting device with vertical motion compensation function A hoisting device can be small-sized and energy can be saved. A hoisting device 10 according to the present invention has a hoist 30 and a control unit 32. The hoist 30 rotates a drum 12 having a wire 14 wound thereon by an ... | 08/17/2010 |
| 7681748 | Hoisting device with vertical motion compensation function A hoisting device can be small-sized and energy can be saved. A hoisting device 10 according to the present invention has a hoist 30 and a control unit 32. The hoist 30 rotates a drum 12 having a wire 14 wound thereon by an ... | 03/23/2010 |
| 7490728 | Crane A crane, in particular to an offshore crane, having a hoist rope winch, a hydraulic hoist winch drive and an overload protection which is connected to the hoist winch drive and which, when a predetermined permitted limit load is reached, permits a drawing off of the... | 02/17/2009 |
| 7389889 | Hoisting mechanism The embodied hoisting mechanism has a hoisting cable, a hoisting-cable drive, a frame and a jib that can be topped. Hoisting-cable drive means form a path for the hoisting cable. A displaceable hoisting-cable guide is used with the hoisting cable so that the displac... | 06/24/2008 |
| 7367464 | Pendulation control system with active rider block tagline system for shipboard cranes The inventive control system, as typically embodied, includes sensing mechanisms, a computational processing unit, and an algorithm for processing inputs and generating outputs to control a rotating pedestal crane equipped with a Rider Block Tagline System (RBTS). T... | 05/06/2008 |
| 7287953 | Method for loading and unloading Method for loading and unloading long-distance transportation means (1, 2) and for temporarily storing a standardized cargo (18) in an intermediate storage facility (3) includes a rail-guided hoist (5) with gripper (8). The cargo i... | 10/30/2007 |
| 7040680 | Load handling device In a load handling device for use with a load having a lifting attachment, the lifting attachment being so attached to the load that, when the load is suspended by the lifting attachment, the load is free to pivot relative to the lifting attachment about at least on... | 05/09/2006 |
| 7028988 | Cable handling system A system or apparatus and method for retrieving cable from water during marine operations is provided that reduces damage to the cable from pulling forces during the retrieval. A pulling device distributes the forces and stresses all along the cable components. In o... | 04/18/2006 |
| 6932325 | Active-over-passive coordinated motion winch The instant invention is directed to a active-over-passive coordinated motion winch designed to be used in combination with a class of existing offshore lifting systems such as A-Frames, booms or cranes to minimize the relative movement between a payload position an... | 08/23/2005 |
| 6585455 | Rocker arm marine tensioning system A tensioning riser system for supporting marine elements such as risers which extend form a fixed lower end at a subsea base or foundation to a moving, floating superstructure. The tensioning system has a lever arm pivotally connected to both the superstr... | 07/01/2003 |
| 6505574 | Vertical motion compensation for a crane's load A method and system are provided for reducing sea state induced vertical motion of a shipboard crane's load. Sea state induced vertical velocity of the crane's suspended load is determined as a function of: i) the horizontal radial distance the load exten... | 01/14/2003 |
| 6192541 | Dynamic ramp interface system A dynamic ramp interface system to allow a roll-on/roll-off (RORO) ship to unload and load onto a pier, floating storage facility, or other ship during high sea states. The dynamic ramp interface system includes a motion compensation damping system attach... | 02/27/2001 |
| 6145680 | Apparatus for reducing overload and dampening collision energy The invention relates to an apparatus for reducing overload and dampening collision energy, for instance, in connection with a container crane, the apparatus comprising a movable bar (16) to receive a load and a resistance device (18) against the predeter... | 11/14/2000 |
| 6082947 | Coordinated motion marine lifting device This invention is drawn to a device for transporting cargo between a source position and a destination position utilizing a fixed crane-type device, e.g. an A-Frame, including a pivotal sub A-Frame in conjunction with a heave compensating assembly to whic... | 07/04/2000 |
| 5615784 | Crane counterweight installation and removal apparatus A counterweight installation and removal apparatus for a truck-mounted crane includes a counterweight having a bottom surface, a plurality of rollers attached to either the bottom surface of the counterweight or to a crane carrier deck, and at least one i... | 04/01/1997 |
| 5598935 | Frame structure for lift crane machinery A lift crane having enhanced lifting capability includes a self-installing counterweight system which utilizes actuators forming part of a counterweight assembly for raising the counterweight to an operative position with respect to the rear of the crane.... | 02/04/1997 |
| 5597080 | Snag load protection system for a crane A snag load protection system for a train including a guide frame, a sheave housing slidably received within the guide frame, and a hydraulic cylinder connected to the guide frame and to the sheave housing. The hydraulic cylinder serves to exert a compres... | 01/28/1997 |
| 5577874 | Method and apparatus for the transfer of loads from a floating vessel to another or to a fixed installation A method and apparatus for the transfer of loads from a vessel that moves with heavy seas to a stationary or mobile installation by the use of at least one lifting cable and at least one hoisting mechanism, where the load, in a starting position, stands o... | 11/26/1996 |
| 5114026 | Hoisting devices A hoisting device comprises a cable controlled at one end by a conventional crane winch assembly and at the other end by a traction winch assembly comprising traction device and storage winch. The hook is raised and lowered using the crane winch assembly ... | 05/19/1992 |
| 5042415 | Vehicle handling system for submersibles The present invention provides an apparatus for launching and recovering a submersible vessel from a ship, and includes a gantry that pivots in an arc extending over and beyond the aft deck of the ship. A lift line passes about a head sheave that pivots f... | 08/27/1991 |
| 5028194 | Marine crane improvement The present invention relates to an improvement in marine cranes. An additional controllable variable lifting capability is operably connected to the load line of a marine crane, which may be motion compensated, to provide a safe initial lift of the cargo from... | 07/02/1991 |
| 4932541 | Stabilized shipboard crane The invention is directed to a stablilized cargo-handling system using means for stabilizing suspended cargo in all six degrees of freedom using six individually controlled cable in tension in a unique kinematic arrangement. Inertial and distance sensors,... | 06/12/1990 |
| 4898288 | Semi-submersible crane vessel A semi-submersible crane vessel has a chamber (3) which is open to the sea at the bottom. A piston (4) is movable up and down in the chamber by means of hydraulic jacks (5 and 6) acting on piston rod (7). The part (10) of the chamber above the piston cont... | 02/06/1990 |
| 4883388 | Load compensating system A dynamic load compensation system comprises: (a) first structure to receive applied loading, and subject to displacement generally in the direction of load exertion, (b) a base speed from said structure, and (c) means including pairs of generally parallel fluid ac... | 11/28/1989 |
| 4787524 | Overload protection system for a crane An adaptive multi-stage overload protection system for a crane provides an optimal response dependent upon the magnitude of the crane overload. The control system permits the crane operator to take remedial action for overloads of relatively low magnitude... | 11/29/1988 |
| 4782961 | Crane A crane is provided which comprises a hoisting mechanism, which comprises a hoisting rope and a hoisting rope winch. A winch drive for the hoisting rope or a torque-limiting coupling connected between said winch drive and said winch is so controlled that ... | 11/08/1988 |
| 4762456 | Accommodations to exchange containers between vessels A system to transport containers for ports of call by Feeders serving a trade area with each area having an associated terminal located intermittently along a specific route as stops for a fleet of superships (Cellers); there to directly exchange its impo... | 08/09/1988 |
| 4724970 | Compensating device for a crane hook A compensating device for avoiding swell-generated relative movements between a load suspended on a crane and a load placing surface, or between a crane hook and a load to be carried thereby, the compensating device comprises a hydraulic cylinder-piston u... | 02/16/1988 |
| 4674638 | Control for deflection reduction means A rough terrain vehicle comprises a vehicle chassis, wheel assemblies enabling vertical and angular deflection of the chassis relative to the terrain during vehicle movement, a telescopic crane boom pivotally mounted on the chassis and capable of limited ... | 06/23/1987 |
| 4666357 | Ship transport system A transport system (10) for transporting a litter carrier (40) from one location onboard a first ship to a second location onboard another ship includes a retractable boom (12) having a stationary member (16) and a telescoping member (18) slidably engaged... | 05/19/1987 |
| 4658970 | Deflection reduction module for boom hoist cylinder of mobile crane A mobile crane comprises a vehicle chassis mounted on balloon tires, a crane boom pivotally mounted on the chassis, and a double-acting boom hoist cylinder connected between the chassis and the boom for raising and lowering the boom. As the mobile crane t... | 04/21/1987 |
| 4630542 | Nacelle The nacelle (3) is characterized in that it includes at least one cable (6) having a top end that leaves the nacelle upwardly and a bottom end that leaves the nacelle downwardly, and a mechanism (11) enabling the nacelle to move up and down the cable when... | 12/23/1986 |
| 4573592 | Means to reduce oscillatory deflection of vehicle A rough terrain vehicle comprises a vehicle chassis, resilient terrain-engaging wheel assemblies connected to the chassis and enabling vertical and angular deflection of the chassis relative to the terrain during vehicle movement, a telescopic crane boom ... | 03/04/1986 |
| 4547857 | Apparatus and method for wave motion compensation and hoist control for marine winches A wave motion compensator for a marine winch, in which the tension on the winch rope is maintained substantially constant while the load on the rope moves relative to the winch. This constant tension is maintained by controlling the winch drive motor so t... | 10/15/1985 |
| 4544137 | Offshore crane wave motion compensation apparatus Motion compensated load-lifting apparatus for use on marine vessels. Apparatus includes a traveling weight used to maintain tension in the load-lifting member, and a locking mechanism to prevent movement of the traveling weight in one direction. The locki... | 10/01/1985 |
| 4492310 | Apparatus and method for loading and unloading cargo lighters on or from ships A system is disclosed for transporting a lighter 136 from a floating position adjacent the stern 130 of ship 101 to a storage position in the cargo hold 138 of said ship, and for transporting lighter 136 from said storage position to said floating positio... | 01/08/1985 |
| 4363411 | Hammerhead crane with plural shuttle trolleys, a load trolley and movable counterweight means A hammerhead type of crane has a structural tower with opposed structural cantilevers extending horizontally therefrom and there is a horizontal track along which a load carrying trolley may move through the tower between limits near the outer ends of the... | 12/14/1982 |
| 4361104 | Twin hull semisubmersible derrick barge The derrick barge comprises a pair of laterally spaced elongated hulls having a plurality of upstanding columns spaced therealong supporting a working platform and a heavy duty derrick or crane in spaced relation above the hulls. The hulls bouyantly suppo... | 11/30/1982 |
| 4354608 | Motion compensator and control system for crane A motion compensation system for a crane hoist serves to assist the crane operator in safely lifting loads from the deck of a heaving work boat. The crane hook follows the motion of the load because a level of pre-tension is maintained on the line by use ... | 10/19/1982 |
| 4327784 | Apparatus for refueling an aircraft from a ship at sea An apparatus is disclosed for refueling an aircraft primarily fron a ship at sea, the ship being subject to changes in vertical and horizontal position due to pitch, roll, and heave, and combinations thereof. The apparatus comprises a first beam having a ... | 05/04/1982 |
