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Document Title |
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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4317524 |
Hydraulic cranes
An improved hydraulic crane comprising at least one lifting cylinder to pivot the crane arm in a vertical plane relative to the crane post. A pressure-fluid line associated with the cylinder is...
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4310277 |
Apparatus for transferring cargo between relatively movable bodies
An apparatus for transferring cargo between first and second bodies which are movable relative to each other where a hoist for raising and lowering cargo through a hoist line is mounted on one of...
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4304337 |
Marine crane lifting control
A marine crane includes a high speed winch having a hydraulic heave compensating system that automatically controls the crane winch to compensate for the vertical movement of a load during...
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4297961 |
Outrigger-stabilized floating crane system
A crane barge mounting a boom crane aft of its longitudinal center of flotation is provided with a plurality of box-type outrigger barges coupled at its sides to limit list and trim of the crane...
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4280430 |
Linked-spar motion-compensated lifting system
A system for operating a lifting cable over the side of a ship at sea in ch a spar buoy having an adjustable lifting capacity is coupled to the ship by a rigid linkage which is free to pivot on an...
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4273067 |
Method of operating 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...
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4271970 |
Pedestal crane
A pedestal crane of compact construction having a small turning radius is provided for use on board ships and/or off-shore drilling platforms. The crane has a dynamic load compensator so that it...
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4269599 |
Cooling system of self-propelled floating crane engines
A cooling system of self-propelled floating crane engines, in which an external hydraulic circuit intended to cool internal hydraulic circuits of engines comprises pipelines, pumps, tanks filled...
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4238037 |
Angle-of-heel control means for a floating crane
A floating crane on a pontoon of which installed are a crane slewing portion which carries a boom and boom slewing, boom luffing and load hoisting drives controlled by respective master...
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4231313 |
Stabilizing system on a semi-submersible crane vessel
A vessel comprising a pair of laterally spaced elongated buoyancy hulls and vertically mounted thereon a plurality of hollow columns, distributed around the outer circumferential area of the vessel...
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4220246 |
Sheave adjustable balance crane
A crane structure is mounted on a platform and has a tower assembly with spaced apart columns spanned at their upper extremities by an upper structure. A gantry includes a central section, fixedly...
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4207828 |
Stabilizing system for a crane vessel
A stabilizing system for a crane vessel of the twin hull semi-submersible type having a working platform supported above sea level by columns on submersible hulls. Water ballast compartments above...
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4180171 |
Cranes
A crane with a crane rope; means for attaching a load to the crane rope; a crane winch having a drum on which the crane rope can be wound; a crane motor which can drive the crane winch for hauling...
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4179233 |
Vertical motion compensated crane apparatus
Disclosed is a crane employing a fluid cylinder and piston assembly secured to the crane boom and operatively interconnected with the cable between the boom sheave and the load hook to vary the...
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