Class / Patent application number | Description | Number of patent applications / Date published |
212270000 | METHODS | 19 |
20080203045 | Mobile Lift Crane With Variable Position Counterweight - A mobile lift crane includes a carbody; a rotating bed; a boom; a moveable counterweight unit; at least one linear actuation device; and at least one arm pivotally connected at a first end to the rotating bed and at a second end to the linear actuation device. The arm and linear actuation device are connected between the rotating bed and the counterweight unit such that extension and retraction of the linear actuation device changes the position of the counterweight unit compared to the rotating bed. In one method of operation, the counterweight is never supported by the ground during crane pick, move and set operations other than indirectly by the ground engaging members on the carbody. The linear actuation device can include at least one rack and pinion assembly or hydraulic cylinder. In another embodiment, the crane comprises a counterweight movement structure including a rack and pinion assembly having a housing and a rack, the rack having a rectangular cross section with first and second sides opposite one another and third and fourth sides opposite one another, and having teeth on the first side and second sides, and at least first and third pinion gears engaged with the teeth on the first side of the rack and second and fourth pinion gears engaged with the teeth on the second side of the rack, and wherein each pinion gear is driven by a separate hydraulic motor, and wherein the motor driving the first pinion gear is mounted on the housing adjacent an opposite side of the rack from the motor driving the third pinion gear, and wherein the motor driving the second pinion gear is mounted on the housing adjacent an opposite side of the rack from the motor driving the fourth pinion gear. In another embodiment the crane includes a counterweight support structure attached to the counterweight unit. The counterweight support structure includes at least two ground engaging members that can provide support to the counterweight in the event of a sudden release of the load. The support structure comprises a telescoping structure connected to and between the ground engaging members such that the distance between the ground engaging members can be adjusted between a first and second position. | 08-28-2008 |
20080237171 | Methods of positioning an elevating support vessel - A vessel is provided that is an improvement over previously disclosed jack-up rigs and lift boats. The vessel has at least three thrusters and is self-propelled. The vessel additionally has a raised and hollow crane support on which a crane may be mounted. The crane support is preferably affixed to tracks, which permit the crane to slide along the deck of the vessel. The raised and hollowed feature of the crane support permits the storage of equipment and things beneath the crane support without hindering the movement of the crane along the tracks. Optionally, the vessel further has an extension assembly atop which may be deployed a workover rig assembly. The crane may be used to assemble the extension assembly and thus aid in the construction, remediation, and demolition of offshore oil and gas platforms and wells. | 10-02-2008 |
20090134108 | Method of raising a crane boom - The invention relates to a method of raising a telescopic boom of a mobile crane having a luffing fly jib and having a spatial boom guying. To be able to raise particularly long luffing fly jib systems together with the telescopic boom here, in accordance with the invention the telescopic boom is first telescoped outwardly to its desired length. In this position, all the telescopic sections are bolted to one another and the spatial guying is tensioned before the raising of the luffing fly jib pivotally connected to the telescopic boom. | 05-28-2009 |
20090159549 | ERECTING A WIND POWERPLANT - A method for handling a wind powerplant's rotor hub ( | 06-25-2009 |
20090261052 | Method and Apparatus for Deep Water Deployment Operations - A method of deploying an object ( | 10-22-2009 |
20090272709 | PORTABLE PILLAR-MOUNTABLE HOIST - A portable hoist apparatus that can be quickly, easily and recurrently mounted on a tree or other pillar-like structure, which causes very little or no damage to the pillar-like structure, includes a hoist member having a base, a boom projecting from the base, and a support flange; and an adjustably tensionable strap for engaging the support flange and attaching the hoist member to the pillar-like structure. The portable hoist apparatus may be used by hunters to easily lift a tree stand to a desired position on a tree, or by utility workers to easily raise tools or other heavy or awkward objects up along a utility pole. | 11-05-2009 |
20090308826 | Modular Winch for Stage Use - A winch formed of modular components can be reconfigured between different operational configurations. A number of different lengths and devices can be attached to the winch. | 12-17-2009 |
20100000955 | Girder block lifting method and jack-up stage used therefor - A girder block lifting method, which can solve a problem that steel beams are inclined or fallen inward by lifting a heavy material, and a jack-up stage used therefor are provided. The method includes a main beam which can be provided between steel beams being targets of connection with the girder to construct a rigid frame structure, a height adjustment means (gate-shaped base) mounted on a cross beam member being parallel to the main beam and connecting other steel frames for adjusting height to the main beam, a connection beam for alternately connecting the main beam and the height adjustment means (gate-shaped base), and an auxiliary beam for connecting the connection beams. On a frame stage formed by connecting these beams, a plurality of lifting jacks are provided and a lifting sling is hung from upper part of the steel beam to enable jack-up of the girder block. | 01-07-2010 |
20100012610 | LOAD MONITORING AND CONTROL SYSTEM WITH SELECTIVE BOOM-UP LOCKOUT - A method is disclosed for controlling a crane which comprises a boom that may be raised or lowered by angular adjustment of the boom about a base portion of the crane. The method prevents operation of the crane in an undesired condition by continuously monitoring operation of the crane, including monitoring at least the position of the boom with respect to the base of the crane. If the crane approaches a limit of its operating range or any operational parameter, its operation will be controlled so as to selectively prohibit or permit a boom raising operation of the crane, depending on the cause of the condition, rather than uniformly prohibit such an operation. | 01-21-2010 |
20100065524 | METHOD FOR LIFTING OF COMPONENTS OF WIND ENERGY INSTALLATIONS - A method for lifting of components of a wind energy installation ( | 03-18-2010 |
20100206830 | HEAVY CONSTRUCTION INSTALLATION METHOD - There is provided a heavy construction installation method which does not need a secondarily transport in a construction field even if an installation position of a heavy construction is apart from a berthing position of a transport ship. A movable area where a ground plane is reinforced so that a heavy hoisting machine for installing a heavy construction in a building is movable is constructed so as to include a circle drawn around an installation position in the building with a maximum operating radius of the heavy hoisting machine relative to a weight of the heavy construction being as a radius, and a circle drawn around a loaded position of the heavy construction at a transport ship coming alongside a landing place with the maximum operating radius being as a radius. | 08-19-2010 |
20100308000 | Compensator system and method for moving construction form tables - A device for moving construction tables from under poured concrete is disclosed. A spreader bar is suspended from a crane and it incorporates two cables used to connect to the table to be moved at points between the center of the gravity of the table and it's captive end. A hoist is suspended from the spreader bar and it includes two additional cables or chains also used to connect to the table between the center of gravity and the free end of the table. The two sets of cables or cables and chains are kept separate from each other. | 12-09-2010 |
20110011818 | ROTORHOOK - A load lifting device is provided. The load lifting device has a housing, a load lifting hook assembly mounted with the housing, a freely rotatable swivel mounted with the housing opposite the load lifting hook assembly, wherein the freely rotatable swivel can rotate around a vertical axis, and a rotational driving device located within the housing, wherein the rotational driving device interacts with the load lifting hook assembly and controls movement of the load lifting hook assembly along a vertical axis. The rotational driving device controls movement of the load lifting device remotely through a power source, remote processing unit, motor, and remote control. The load lifting device is built to be attached to a hoist line of a crane and be used by riggers or other workers to move material and equipment. | 01-20-2011 |
20110017693 | CONTAINER TRACKING AND LOCATING SYSTEMS, METHODS, AND COMPUTER PROGRAM PRODUCTS - Provided are systems, methods, and computer-program products for tracking and locating shipping containers in rail car unloading operations in a railway switchyard using a rail mounted gantry crane. The systems, methods, and computer program products configured to establish the position of shipping containers loaded on rail cars within a rail yard. The position of the shipping containers can be conveyed in terms of relative or absolute coordinates. The systems, methods, and computer program products can use a variety of inputs, rules, and calculations to establish the final resting places of containers mounted on rail cars. The position information may be used to provide various functionality, including creating a log or record of the location of containers or to guide rail mounted gantry (RMG) cranes to unload and work the train(s) of interest. | 01-27-2011 |
20110155682 | LIFTING DEVICE FOR THE INSTALLATION AND SERVICE OF AN UNDERWATER POWER PLANT - The invention relates to a lifting device for placing and/or lifting a turbine-generator unit of an underwater power plant onto or off of a support structure, comprising a submersible component having a transverse centering device and a gripping device; the transverse centering device causing lateral centering of the submersible component relative to the turbine-generator unit by a support on the support structure; and the gripping device comprising a movable clamping element for the detachable securing of the turbine-generator unit. | 06-30-2011 |
20120228255 | METHODS OF REMOVING A TORQUE CONVERTER AND A STARTING MOTOR FROM AN AUXILIARY COMPARTMENT OF A GAS TURBINE - Methods for moving a starting motor or a torque converter within an auxiliary compartment of a gas turbine are provided. A removal apparatus, which includes a lifting fixture attached to a beam pivotally mounted on a mast, is secured within the auxiliary compartment. To move the starting motor, a plurality of lifting hooks on the lifting fixture are attached to the starting motor, and the lifting fixture and the starting motor are hoisted. To move the torque converter, a pair of lifting lugs on the lifting fixture is attached to the torque converter, and the lifting fixture and the torque converter are hoisted. | 09-13-2012 |
20140319091 | ERECTING A WIND POWERPLANT - A method for handling a wind powerplant's rotor hub or to handle a wind powerplant's rotor using a hoist, in particular for erecting a wind powerplant or for assembling or disassembling a rotor to and from such a powerplant, in particular a hub or a rotor being configured by means of one assembly side to the wind powerplant's tower, the hub or rotor being raised or held by the hoist. In the raised state, the hub is tilted by a tilting mechanism acting on it out of the initial, raised position by a predetermined angle of tilting, or the rotor is tilted by a tilting mechanism acting on the rotor blade roots of the rotor through a predetermined angle of tilting. A mechanism to handle a wind powerplant's rotor hub of a wind powerplant's rotor, in particular for assembling or dismantling a rotor to or from its wind powerplant. | 10-30-2014 |
20160176684 | LUFFING CROSS MEMBER | 06-23-2016 |
20160194888 | CONSTRUCTION APPARATUS AND METHOD FOR LIFTING STRUCTURE INTEGRALLY OVER THE OBSTACLES IN VERTICAL DIRECTION TO A POSITION WITH DIFFERENT HORIZONTAL PROJECTION | 07-07-2016 |