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| Number | Title | Issue Date |
| 7997431 | Operating method for an installation having a mechanically movable element An assembly has a mechanically movable element (1), by the movement of which an oscillatory system (2) can be excited to perform an oscillation which has a resonant frequency (f) and a corresponding oscillatory period (T). First of all, a control devic... | 08/16/2011 |
| 7850025 | Method for controlling the orientation of a crane load A method for controlling the orientation of a crane load is described, wherein a manipulator 416 for manipulating the load is connected by a rotator unit to a hook suspended on ropes 410 and the rotational angle φL of the load is controlled... | 12/14/2010 |
| 7395940 | Method of operating a crane The present disclosure relates to a method of operating a crane whose safe working load depends on one or more changeable parameters, with the change of at least one of the parameters being made such that the speed of the parameter change is reduced continuously or ... | 07/08/2008 |
| 7331477 | Method and device for determining a swinging motion of a load suspended from a lifting gear A method and a device for determining the rotary oscillation of a load suspended from a lifting gear are disclosed. The lifting gear includes a trolley equipped with a camera that can be oriented towards the load. The load includes at least two spaced apart markers,... | 02/19/2008 |
| 7289875 | Systems and methods for sway control Systems, methods and computer program code for the measurement and control of sway in load transportation systems are provided which include using Micro-Electro-Mechanical Systems (MEMS) devices to measure and control the sway of suspended loads such as loads suspen... | 10/30/2007 |
| 7289876 | Container crane, and method of determining and correcting a misalignment between a load-carrying frame and a transport vehicle A container crane includes a movable trolley and a load-carrying frame pendantly connected to the trolley and comprised of a spreader and a head block, for transfer of a container from or to a transport vehicle. Plural optical detectors are mounted on the trolley fo... | 10/30/2007 |
| 7261351 | Spreader including a detection system A spreader (1) for lifting a freight container (7, 17) comprises a frame (3, 4, 11) and two pairs of pickup elements (5). Each pair of pickup elements (5) are mounted at opposite ends of the frame (3, 4, 11) and the frame ( | 08/28/2007 |
| 7185774 | Methods and apparatus for manipulation of heavy payloads with intelligent assist devices An intelligent assist method and apparatus are disclosed. The intelligent assist method includes imparting a manual force to a suspended object, determining an angle at which the suspended object is manually forced, generating motorized power to move the object in a... | 03/06/2007 |
| 7158840 | Tuning control parameters of vibration reduction and motion control systems for fabrication equipment and robotic systems A method and apparatus is disclosed for acquiring and processing parameters used to adjust and tune a controller used, for example, to govern and compensate for motion, including vibrations and disturbances, in a physical system, such as a piece of manufacturing equ... | 01/02/2007 |
| 7137771 | Method and device for recognition of a load on a lifting gear In a method for recognition of the position of a load on a lifting gear, an active light source and a camera are mounted to a trolley of the lifting gear. Both, the light source and the camera are directed towards the load. The load has attached thereto at least one... | 11/21/2006 |
| 7134563 | Crane with manual input devices The invention relates to a crane that comprises an electronic control for actuating drives for at least one lifting gear and for crane movements, which can be operated by an operator via manual input devices. Said manual input devices can be adjusted as regards thei... | 11/14/2006 |
| 7066822 | Multidirectional amusement device A multidirectional amusement device is shown having a support structure extending above a support surface. A ride vehicle is secured to the support structure with support lines and is allowed to move freely beneath the support towers. A retraction tower receives a t... | 06/27/2006 |
| 7043337 | Methods and apparatus for eliminating instability in intelligent assist devices Methods and apparatus for eliminating instability in intelligent assist devices are disclosed. The intelligent assist device includes an overhead motorized moveable trolley, a support that extends downwardly from the trolley to a payload, and a sensor operatively co... | 05/09/2006 |
| 7031883 | Spreader A spreader for lifting freight containers includes a frame having a number of pickup elements mounted thereon, a processor and a data storage device mounted on the frame. The processor is coupled to an interface device to receive outputs from a number of sensors mou... | 04/18/2006 |
| 7028856 | Crane control apparatus and method This crane control apparatus and method with swing control and variable impedance is intended for use with overhead cranes where a line suspended from a moveable hoist suspends a load. It is responsive to operator force applied to the load and uses a control strateg... | 04/18/2006 |
| 7026780 | Method for stabilizing the movement of an articulated chain of a chain block, especially to prevent the formation of a resonance oscillation of the chain, and a chain block apparatus The invention concerns a method for stabilizing the motion of an articulated chain of a chain block, especially to prevent the formation of resonance oscillation of the chain, in which an articulated chain is led across a polygonal chain wheel with non-uniform pitch... | 04/11/2006 |
| 6994703 | Method and apparatus for performing minimally invasive cardiac procedures A system for performing minimally invasive cardiac procedures. The system includes a pair of surgical instruments that are coupled to a pair of robotic arms. The instruments have end effectors that can be manipulated to hold and suture tissue. The robotic arms are c... | 02/07/2006 |
| 6974044 | System and device for controlling a load lifting device The invention relates to a system for controlling a load lifting device (1) with a controllable drive (2) and a lifting element (5) which is linked with the drive (2) and which is—at least in a non-operational position due to the gravit... | 12/13/2005 |
| 6962091 | System and method for measuring a horizontal deviation of a load receiving element The aim of the invention is to provide a system and a method which surmounts the problems of prior art. According to the inventive system and method for measuring horizontal deviation of a load receiving element in relation to a position of a hoist traveling trolley... | 11/08/2005 |
| 6907317 | Hub for a modular intelligent assist system An intelligent assist system having a modular architecture, coordinated by electronic communication links between the modules is provided. A multi-function hub for use in the assist system includes a physical interface for providing mechanical support within the ass... | 06/14/2005 |
| 6903529 | Method and apparatus for damping mechanical oscillations of a shaft in machine tools, manufacturing machines and robots Damping of mechanical oscillation in a shaft that is provided by feedback wherein the output signals of multiple feedback devices are negatively coupled and added to a desired speed signal of a motor speed controller of the driving motor is disclosed. At least one s... | 06/07/2005 |
| 6796447 | Crane control system This crane control system with swing control and variable impedance is intended for use with overhead cranes where a line suspended from a moveable hoist suspends a load. It is responsive to operator force applied to the load and uses a control strategy based on est... | 09/28/2004 |
| 6644485 | Method of and apparatus for controlling stacking of a load by a crane An apparatus for controlling stacking of a load by a crane estimates a periodical displacement of a horizontal position of a tool. A speed with which the tool descends is controlled such that the tool or a load held by the tool lands on a desired position... | 11/11/2003 |
| 6631300 | Nonlinear active control of dynamical systems A control system for reducing cargo pendulation. The control system calculates a correction factor and adds the correction factor for the operator input motions in addition to the motion of the platform in order to provide a reference position of the susp... | 10/07/2003 |
| 6588610 | Anti-sway control of a crane under operator's command A system is disclosed for eliminating sway of a load in a crane or crane-like system subject to operator's command. The load is suspended by a cable from a horizontally movable trolley and can be hoisted vertically. The system uses the principle of cancel... | 07/08/2003 |
| 6527130 | Method and system for load measurement in a crane hoist The invention provides a load measurement in a crane hoist system. A parameter adaptation process uses a model of the system in order to measure the lifted load. A controller monitors hoist speed and hoist torque feedbacks that are input into the model an... | 03/04/2003 |
| 6496765 | Control system and method for payload control in mobile platform cranes A crane control system and method provides a way to generate crane commands responsive to a desired payload motion to achieve substantially pendulation-free actual payload motion. The control system and method apply a motion compensator to maintain a payl... | 12/17/2002 |
| 6460711 | Suspension type hoisting apparatus A suspension type hoisting apparatus has the position of an elevating portion, which is elevatably suspended from a base via a suspension member, adjusted by a positioning member for positioning the suspension member suspended from a carriage in the horiz... | 10/08/2002 |
| 6439407 | System for stabilizing and controlling a hoisted load A system which can both be adapted to existing single point lift mechanisms, and constrain a hoisted load in all six degrees of freedom, includes a suspension point, an assembly, a lateral tension lines member, and a control system. The assembly includes ... | 08/27/2002 |
| 6234332 | Swaying hoisted load-piece damping control apparatus A transverse trolley 11 is transversally movable on a crane girder. A driver is provided for the transverse trolley 11. A pair of sheave blocks 14, 15 which is movable relative to a transverse trolley 11 are disposed on both (right and left) sides of a tr... | 05/22/2001 |
| 6182843 | Method for the target path correction of a load carrier and load transport apparatus For the positional correction of a load carrier (34) suspended on a trolley (22) a cable member (50') of the lifting cable system interposed between the trolley (22) and the load carrier (34) is displaced in a horizontal direction at a location near the t... | 02/06/2001 |
| 6135301 | Swaying hoisted load-piece damping control apparatus A transverse trolley (11) is transversally movable on a crane girder. A driver is provided for the transverse trolley (11). A pair of sheave blocks (14, 15) which is movable relative to a transverse trolley (11) are disposed on both (right and left) sides... | 10/24/2000 |
| 6102221 | Method for damping load oscillations on a crane A method and device for damping the oscillation of a load suspended from a rope on a crane is presented. A digital filter accepts an arbitrary velocity input signal and produces a velocity signal output similar to the input and that runs a bridge or troll... | 08/15/2000 |
| 6050429 | Method for inching a crane without load swing A method for moving a carriage of a crane a short distance while simultaneously damping the oscillation of its load. The method includes: determining the period of oscillation T of the load; moving the carriage a first displacement from an initial positio... | 04/18/2000 |
| 5988411 | Method and apparatus for reduced vibration of human operated machines Tele-operated machine including a moveable structure and a control device functionally connected to the moveable structure for operation by a human operator. An input processor apparatus responsive to the control device generates signals to move the movea... | 11/23/1999 |
| 5967347 | Lowering collision avoidance device of crane A lowering collision avoidance device includes a hoisting accessory swing detector, a rope winding speed detector, an arithmetic unit, a rope winding speed controller, and if desired, a rope length detector. The arithmetic unit computes a command value fo... | 10/19/1999 |
| 5961563 | Anti-sway control for rotating boom cranes A process for anti-sway control of a rotating boom or other three-degree-of-freedom crane wherein the load is hoisted, at variable hoist lengths, by a cable suspended from a point that can be moved in space in three dimensions, either freely, or under kno... | 10/05/1999 |
| 5960969 | Method for damping load oscillations on a crane A method and device for damping the oscillation of a load suspended from a rope on a crane is presented. A digital filter accepts an arbitrary velocity input signal and produces a velocity signal output similar to the input and that runs a bridge or troll... | 10/05/1999 |
| 5938052 | Rope steadying control method and apparatus for crane or the like An object of this invention is to provide a high performance and low cost crane rope steadying control method and apparatus for which mechanical or optical swing angle detecting means are not necessary. The invention provides a rope steadying control method fo... | 08/17/1999 |
| 5909817 | Method and apparatus for controlling and operating a container crane or other similar cranes The crane comprises a generally horizontal boom or other supporting structure having at least one rail thereon, a trolley having a reversible drive for moving the trolley in either direction along the rail, a wire rope hoist suspended from the trolley, an... | 06/08/1999 |
