Abstract: A heating system for heating a natural gas hydrate reservoir. The heating system includes a fully enclosed wellbore extending through a portion of the natural gas hydrate reservoir. A heating fluid is passed through the wellbore to heat the portion of the natural gas hydrate reservoir. Additionally, a production system includes a perforated wellbore that is used to extract the natural gas hydrate water after heating.

Abstract: Enhanced oil recovery becomes increasingly important in satisfying the growing demand for fossil fuel. The efficiency of secondary recovery processes like water flooding is however largely influenced by the rock characteristics, fluid characteristics, chemistry and physics. For development of the full potential of secondary oil recovery, it remains a challenge to obtain sufficient knowledge about the reservoir conditions. The present invention provides a novel water-dispersed, nano-sensor composition based on. InP/ZnS quantum dots (“QDs”) and atomic silver clusters, which exhibit a bright visible fluorescence combined with dedicated sensor functionalities. The QD and silver nano-sensors were tested in simulated reservoir conditions to determine their selected functionality to these reservoir conditions. The developed nano-sensors showed improved sensor functionalities towards pH, temperature, and subterranean reservoir rock, such, as clay or limestone.

Abstract: This invention relates to a method for selective removal of silica and silicon containing compounds from solutions that include silica and silicon containing compounds, including geothermal brines.

Abstract: A system for use with a subterranean well can include a fluid oscillator which discharges pulsating fluid from a tubular string in a direction at least partially toward an end of the tubular string proximate a surface of the earth. A method can include discharging a fluid from the tubular string, thereby applying a reaction force to the tubular string, which reaction force biases the tubular string at least partially into the well. Another method can include discharging a pulsating fluid from a fluid oscillator in a direction at least partially toward an end of the tubular string, and drilling into an earth formation with a drill bit connected at an opposite end of the tubular string in the well.

Abstract: An embodiment of a tool for clearing a deposit within a fluid flowline, including a body having a central axis, a first end, a second end opposite the first end, and a radially outer surface extending axially from the first end of the second end. In addition, the tool includes a first energy element coupled to the first end, and an electrode extending radially from the radially outer surface of the body. The first energy element and the electrodes are each configured to emit energy to dissipate the deposit in the fluid flowline.

Abstract: A system for bringing producing oil and gas from a subsea gathering manifold or wellhead, including a loop having an upper end at the surface and a lower end below the surface, the loop rotatable around a closed path, and production vessels attached to the cable loop, each production vessel having a hollow interior, the weight of the plurality of production vessels sufficient, when filled with seawater, to cause the production vessels to sink, the plurality of production vessels each having an inlet pipe. The system also includes a plurality of receivers attached to the production gathering manifold or wellhead that receive production fluid, the receivers engaging production vessels and filling them with well fluid while seawater is discharged from the production vessels, the production fluid having a lower density than ambient seawater so that the production vessels become buoyant when filled with the production fluid.

Abstract: Offshore and onshore oil well blowouts can bring serious environmental damages which can cause serious economic loses. Oil wells under blowout conditions can be gushing fluids for months before the well is capped and plugged. Placing a capping device on the top of the well head can be challenged. In this paper it is presented a detachable capping device and a method that will help to control the well, or to plug it. The gushing fluids will be redirect through pipe to a surface vessel where they will be collected.

Abstract: A housing for a downhole tool, having a fluid vent assembly comprising a port passing through the wall of the housing to transmit fluid through the port when the port is open, a sealing device to seal the port, and a cutting device to disrupt the sealing device and permit transmission of fluid through the port. The cutting device is driven axially through the sealing device without relative rotation between the two. The cutting device has an asymmetric blade to cut a coupon from the sealing device by a gradual and progressive disruption of the closure, typically cutting through only a portion the closure device, so that the coupon cut from the closure device remains attached to the closure device when the closure device is ruptured to open the seal. Typically the downhole tool comprises a downhole pump, and the housing comprises the shroud of the pump.

Abstract: An automated pipe slips includes a pipe slips body having a generally frustoconically tapered inner wall. A plurality of wedges is positioned to slide along the tapered inner wall and may be hydraulically driven. In some embodiments, the wedges alternate between long and short wedges, such that only long wedges are used to engage a tubular member having a small diameter, and both long and short wedges are used to engage a tubular member having a large diameter. In some embodiments, the automated pipe slips may include a centralizer assembly. In some embodiments, the automated pipe slips may include a wiper assembly.

Abstract: A lift frame system and method of use including a lift frame capable of being moved from a stowed position to a drill center position and a skidding pallet with at least one personnel access and egress walkway platform. The skidding pallet is capable of moving along a plurality of rails and engaging a multipurpose tower. The lift frame may include levels, a coiled tubing injector, at least one pressure control equipment, stabilizing arms, a top drive, a hook, and a set of bails.

Abstract: A wellbore packer for setting one or more packing elements in a borehole having an open hole section. The wellbore packer comprises a port-less mandrel configured with one or more packing elements and one or more setting mechanisms. The setting mechanism is responsive to a driving force and configured to set the packing elements in the borehole, wherein the driving force is not tubing string pressure. Where packers are set by annular pressure, a method for setting a plurality of such packers may include sequentially operating the packers. A mechanism may be provided for the packers to allow sequential operation thereof.

Abstract: In an aspect of the invention a ripping mechanism for a vehicle is provided which includes a support frame, a ripping member, a vibrator mechanism, a pressure sensor, and a control system. The control system is configured to determine when the ripping member is engaged with hard material using the pressure sensor. When the ripping member is engaged with hard material, the control system is configured to permit operation of the vibrator mechanism. In some embodiments, the control system may further be configured to automatically start the vibrator mechanism when it detects that the ripping member is engaged with hard material. When the ripping member is not engaged with hard material, the control system is configured to deactivate the vibrator mechanism. In some embodiments, deactivation of the vibrator mechanism means that the control system turns off the vibrator mechanism.

Abstract: Assemblies are arranged in such a manner that the diesel particulate filter device of one of the assemblies, the selective catalytic reduction device of the one assembly, the selective catalytic reduction device of the other assembly, and the diesel particulate filter device of the other assembly are located next to each other in this order as seen in a plan view. An exhaust pipe is located within a region made up of a region where the selective catalytic reduction device in the one assembly is arranged, a region where the selective catalytic reduction device in the other assembly is arranged, and a region between the selective catalytic reduction device in the one assembly and the selective catalytic reduction device in the other assembly, and located on an end side in the longitudinal direction, as seen in a plan view.

Abstract: An electric power wrench for fastening and loosening joints includes: a main shaft for delivering a torque to a joint, an electric motor that is arranged to selectively drive the main shaft in two opposed rotational directions, a control unit for controlling the drive of the electric motor, and a transmission that connects the electric motor to the main shaft. The control unit has a first drive mode in which it controls the electric motor such that it delivers a continuous torque in a forward direction, and delivers torque pulses in an opposite backward direction, wherein the transmission includes an inherent play and wherein the torque pulses are produced in said play.

Abstract: Small wells cut into the upper interior surface of the head plate collect oil that is sprayed forcefully upward by the rotating gears and eccentric weights and channels that oil through a throughbore across the width of the head plate, routing the oil into a hose or bored channel at each end of the throughbore, with oil in the hoses or bored channels flowing through bearing access ports into the bearings on the rotating eccentric weights. A separate oil collection well, throughbore and hose arrangement is provided for each of the eccentric weight and gear sets and may be provided for pinion gears connected to hydraulic drive motors.

Abstract: An object of the invention is to provide an impact tool improved in vibration-proofing structure of a handle. A representative impact tool has a tool body and handle. The handle has a handle body and pair of grips that extend in a direction crossing an axial direction of a tool accessory, designed to be held by user's right and left hands. The handle body has a first part to which the grips are connected in a fixed manner and a second part that is connected to the tool body in a fixed manner. The first part is supported against the tool body via an elastic member and is allowed to move with respect to the tool body and the second part while being biased by an elastic force of the elastic member. A current supply cable, supplying current to a motor, is installed on the second part.

Abstract: A rotary tool for driving drill bits or screw bits. The rotary tool includes a main body, a main shaft, a chuck, and a locking assembly for locking the chuck at a fixed position relative to the main shaft in the axial direction. The locking assembly is arranged fixedly relative to the main body in the circumferential direction of the main shaft and it has a portion that contacted with the chuck when locking the chuck.

Abstract: A medical or dental fluid-driven handle with a control or regulation circuit for the control or regulation of the rotational speed of a rotary part to a predetermined rotational speed and methods are presented. The handle comprises a rotary part that can be set in rotary motion by a drive fluid, a fluid line carrying the drive fluid to or from the rotary part or a fluid branch line that is connected to a fluid line carrying the drive fluid, and a control or regulation circuit that is designed to control or regulate the rotational speed of the rotary part. An electrodynamic converter is driven by the rotary part for generating electrical energy. An actuator element is configured to act on the drive fluid and is electrically connected to the electrodynamic converter such that the actuator element is supplied with electrical energy generated by the electrodynamic converter.

Abstract: A method for manufacturing a conductor part for a connector unit is provided. The conductor part includes a conductive core, an insulating sleeve, and at least a first conductive layer arranged between the conductive core and the insulating sleeve. The method includes equipping at least one section of a radially inner surface of the insulating sleeve with the first conductive layer, and equipping at least one section of a radially outer surface of the insulating sleeve with at least a second conductive layer. The second conductive layer is a metal layer or a conductive plastic layer. The method also includes inserting the conducting core in the insulating sleeve before or after equipping a surface of the insulating sleeve with a conductive layer.

Abstract: An electric cable includes a wire section that includes an electric wire including a conductor and a braided shield layer covering an outer periphery of the conductor and including a plurality of metal wires braided, and a cylindrical outer layer section covering an outer periphery of the wire section and including a cylindrical sheath and a braided reinforcement layer that covers an inner surface of the sheath and includes a plurality of fibers braided. The wire section is arranged inside the cylindrical outer layer section. The outer layer section is constructed such that a permissible region is formed in the cylindrical outer layer section that allows a displacement of the wire section with respect to the outer layer section in a direction orthogonal to a length direction of the wire section.

Abstract: A cable having one or more conductors with a polymeric covering layer and a non-extruded coating layer formed of a material based on a liquid composition including a polymer resin and an antimicrobial additive. Methods of forming cables are also provided.

Abstract: A manufacturing method of a package carrier includes the following steps. Two base metal layers are bonded together. Two supporting layers are laminated onto the base metal layers respectively. Two release metal films are disposed on the supporting layers respectively. Each release metal film includes a first metal film and a second metal film separable from each other. Two first patterned metal layers are formed on the release metal films respectively. Each first patterned metal layer includes a pad pattern. Two dielectric layers are formed on the release metal films respectively and cover the corresponding first patterned metal layers. Each dielectric layer has a conductive via connecting to the corresponding pad pattern. Two second patterned metal layers are formed on the dielectric layers respectively. Each second patterned metal layer at least covers the conductive via. The base metal layers are separated from each other to form two independent package carriers.

Abstract: A multilayer structure comprises an insulation material, a conductive layer and a protective film. The conductive layer is disposed on the insulation material. The protective film is disposed on the surface of the conductive layer, and the surface area of the protective film is less than that of the conductive layer. A fingerprint identification device and a manufacturing method thereof are also disclosed.

Abstract: A ceramic substrate comprises a plurality of ceramic sheets, a plurality of inner conductive layers, a plurality of vias, and an upper conductive layer. The ceramic sheets are stacked one on top of another and include a top ceramic sheet. The inner conductive layers include electrically conductive material that forms electrically conductive features on an upper surface of each ceramic sheet excluding the top ceramic sheet. The vias are formed in each of the ceramic sheets with each via being filled with electrically conductive material. The upper conductive layer includes electrically conductive material that forms electrically conductive features on an upper surface of the top ceramic sheet. The upper conductive layer is constructed from a stack of four sublayers. A first sublayer is formed from titanium. A second sublayer is formed from copper. A third sublayer is formed from platinum. A fourth sublayer is formed from gold.

Abstract: An method for preparing a flexible transparent electrode film that has a high transmittance and low sheet resistance without having to go through a separate heating process by using cesium, and a flexible transparent electrode film prepared thereby, the method including: applying a nanowire transparent conductive film on a high molecular base material film; coating the nanowire transparent conductive film with a sol-gel solution wherein titanium dioxide and cesium are mixed; and welding the nanowire.

Abstract: An electronic component package includes a substrate and dielectric structure. The dielectric structure includes a top surface having a protrusion portion and a lower portion. The protrusion portion is located at first height that is greater than a second height of the lower portion. A conductive bond pad is located over the dielectric structure. A ball bond electrically couples the bond pad and a bond wire. An intermetallic compound located between the ball bond and bond pad is formed of material of the ball bond and bond pad and electrically couples the bond pad to the ball bond. A portion of the bond pad is vertically located between a portion of the lower portion of the top surface of the dielectric structure and the intermetallic compound. No portion of the bond pad is vertically located between at least a portion of the protrusion portion and the intermetallic compound.

Abstract: A manufacturing method of a package carrier includes the following steps. Firstly, two base metal layers are bonded together. Then, two supporting layers are laminated onto the base metal layers respectively. Next, two release metal films are disposed on the supporting layers respectively, wherein each of the release metal films includes a first metal film and a second metal film separable from each other. Next, two patterned metal layers are formed on the release metal films respectively, wherein each of the patterned metal layers is suitable for carrying and electrically connected to a chip. Then, the base metal layers are separated from each other to form two package carriers independent from each other. A package carrier formed by the manufacturing method described above is also provided.

Abstract: Provided are: a curable composition which can attain both good adhesion to a printed circuit board, particularly to a flexible substrate or the like; a resist coating film of the curable composition; and a printed circuit board comprising a resist pattern formed by the curable composition. By the present invention, a curable composition for a printed circuit board comprising (A) a compound having a triazine ring, (B) a (meth)acrylate compound having a hydroxyl group and (C) a photopolymerization initiator; a coating film obtained by photo-curing the curable composition; and a printed circuit board comprising a resist pattern formed by the curable composition, are obtained.

Abstract: There is provided a multilayer ceramic capacitor including: a ceramic body including dielectric layers and internal electrodes; an electrode layer disposed on an outer surface of the ceramic body and electrically connected to the internal electrodes; a first composite resin layer disposed on the electrode layer and including a first conductive powder; and a second composite resin layer disposed on the first composite resin layer and including a second conductive powder different from the first conductive powder.

Abstract: A monolithic-capacitor-mounted structure satisfies Lc>Wc and Lx/Wx<Lc/Wc, where Lx denotes a distance between a first-lengthwise outermost portion of a first-lengthwise outermost one of first through fourth pads and a second-lengthwise outermost portion of a second-lengthwise outermost one of the pads; Wx denotes a distance between a first-widthwise outermost portion of a first-widthwise outermost one of the pads and a second-widthwise outermost portion of a second-widthwise outermost one of the pads; Lc denotes a distance between a first-lengthwise outermost portion of a first-lengthwise outermost one of external electrodes and a second-lengthwise outermost portion of a second-lengthwise outermost one of the external electrodes; and Wc denotes a distance between a first-widthwise outermost portion of a first-widthwise outermost one of the external electrodes and a second-widthwise outermost portion of a second-widthwise outermost one of the external electrodes.

Abstract: A multilayer ceramic capacitor may include: three external electrodes disposed on amounting surface of a ceramic body to be spaced apart from one another. When a thickness of an active layer including a plurality of first and second internal electrodes disposed therein is defined as AT, and a gap between a first or second lead part of the first internal electrode and a third lead part of the second internal electrode is defined as LG, the following Equation may be satisfied: 0.00044?LG*log [1/AT]?0.00150.

Abstract: A fabric over foam electromagnetic interference gasket has a body of indefinite length, and includes a layer of dielectric material thereon. The gasket may be compressed between two substrates and provide electrical conductivity in one axis and EMI shielding and nonconductivity in a perpendicular axis.

Abstract: A cable for powering of radio equipment mounted on a mast for carrying the radio equipment is disclosed. The cable comprises a first conductor for feeding a current to the radio equipment, a return and shielding conductor for feeding a return current from the radio equipment and for shielding of the first conductor, and an insulating material disposed between the first conductor and the return and shielding conductor. The first conductor is at least partially enclosed by the insulating material. A first cross-sectional area of the first conductor is less than a second cross-sectional area of the return and shielding conductor.

Abstract: An improved wire connector is provided that allows for securing one, two, or more cables in an electrical box knockout hole. The wire connector body interior includes a central tab with a hinge for exerting pressure against at least a first/tab cable. The central tab also has a gripping portion for gripping the tab cable without cutting its sheathing. In preferred embodiments, the central tab further includes a multifunction tab member, such as a multifunction knob or multifunction bumpers, which provides inter alia a secondary spring function for applying added pressure on an inserted tab cable, especially when a second/wall cable is inserted. The wire connector body contains ribs on the inner wall facing the central tab gripping portion for gripping a wall cable without cutting its insulation. The wire connector body also contains a longitudinal slot for easy installation or removal from an electrical box.

Abstract: A cable clamp is configured to fix an electric cable including an electric wire section and an outer layer section covering the electric wire section to a fixed member. The cable clamp includes a first cylindrical portion for the electric wire section to be inserted therein, and a second cylindrical portion formed around outside the first cylindrical portion to surround the first cylindrical portion. The second cylindrical portion includes a receiving portion formed between it and the first cylindrical portion to receive the outer layer section. The second cylindrical portion is swaged with the electric wire section inserted in the first cylindrical portion and with the outer layer section received in the receiving portion, so that the outer layer section is gripped by the first cylindrical portion and the second cylindrical portion.

Abstract: A waterproof structure of a wire harness with a connector in which crimp terminals are housed and held in a plurality of cavities respectively in the connector, the crimp terminals being crimped to electric wire terminals of a plurality of electric wires included in the wire harness. The waterproof structure includes a sheet material having a width covering both the connector and the electric wires projecting from rear cavity openings, having waterproof property and elasticity, and having adhesive surfaces on one side. The sheet material is fixedly attached to a connector neck portion where the plurality of electric wires project outward from the rear cavity openings of the connector by tightly attaching the adhesive surfaces to each other from two sides having the connector therebetween, so that the connector neck portion is covered by the sheet material.

Abstract: An electrical cable assembly includes an electrical cable extending a length from a first cable end to an opposite second cable end. The electrical cable includes at least one electrical wire. A first electrical connector is terminated to the first cable end of the electrical cable. A second electrical connector is terminated to the second cable end of the electrical cable. The assembly includes an electrical cable shield that includes a metallized fabric body that extends around the electrical cable along the length of the electrical cable. The metallized fabric body extends a length along the length of the electrical cable from a first shield end to a second shield end of the metallized fabric body. The first shield end of the metallized fabric body is dressed over the first electrical connector. The second shield end of the metallized fabric body is dressed over the second electrical connector.

Abstract: A mains power wire connection assembly (100) using a button to push a first wire and a second wire to move toward the direction of clamping slots, and the inner walls of the clamping slots puncture the first and second wires and clamp same. The button and the insulation doby are locked and fixed with respect to each other. The mains power wire connection assembly can be electrically and mechanically connected to a mains power wire conveniently, quickly and reliably.

Abstract: The present invention relates to a busbar adapter having a lower deck and an upper deck that can be interconnected releasably. The deck elements comprise projections and openings that can be brought into engagement with each other, the busbar adapter further comprises a locking device.

Abstract: In one embodiment, a radio-frequency identification device for use in a wellbore includes a housing made of a polymer; and an antenna disposed in the housing. The polymer may be selected from the group consisting of an elastomer, a plastic, a rubber, a thermoplastic elastomer, and combinations thereof. The RFID device may also include a fill material disposed in the housing.

Abstract: Temperature sensing devices and methods for determining downhole fluid temperature at a drill string in a borehole while drilling are disclosed. The device includes a temperature sensor capable of detecting and measuring rapid temperature changes and may be used to sense the temperature of fluid inside or outside the drill string. In addition, the device includes a thermal conductor that receives and secures the temperature sensor; the thermal conductor is in turn received and secured in a thermal insulator that provides a thermal barrier. In an embodiment, the device is disposed in a channel within an outer diameter of the drill string such that the device is protected from the side wall of the borehole and drilling fluid and cuttings can pass through the channel without becoming packed around the temperature sensor.

Abstract: A locator device and methods of use are disclosed. The locator device includes a first locating system configured to generate to sense an electromagnetic field emanating from a sonde associated with a drill head, and a second locating system including a global positioning system. The locator device includes a display on the locating system configured to display a map of the area in which the locator device resides based on a location detected by the global positioning system. The locator device also includes control electronics configured to, upon receipt of an input from a user, record location data in a memory associated with the locator device for use by a horizontal directional drilling control system.

Abstract: A downhole assembly for directionally drilling a borehole has a motor, a transmission, and a steering mechanism. The motor has a rotor driven in a stator by flow of drilling fluid therebetween. The transmission operatively couples the rotor to a drill bit for drilling the borehole. A flow control controls the flow of drilling fluid through an internal passage of the rotor. The flow control can thereby vary the drive of the rotor in a bit speed effect that preferentially cuts the wall of the borehole to achieve directional drilling. The flow control can also thereby create a differential pressure displacing the rotor along a longitudinal axis of the motor in a thrust effect. The steering mechanism responds to the displacement of the rotor and deviates a direction of the drill bit from the longitudinal axis of the motor to further achieve directional drilling. The bit speed effect, the rotor displacement, and the deviation are preferentially coordinated to coincide or at least operate together.

Abstract: Rock strength is estimated during drilling using a rate of penetration model or a modified mechanical specific energy models. The rock strength estimate can be used in conducting further drilling, for example by a drilling system. Drilling parameters may be altered as a result of determining rock strength, for example to avoid undesirable trending fractures, such as extensive vertical fractures.

Abstract: The mining vehicle has a carriage, driving equipment for moving the carriage, at least one mining work device, an electric motor for supplying power to the mining work device, a connection for supplying electric power to the electric motor from an electrical network of the mine, and an energy source. The electric motor has at least a primary stator winding and a secondary stator winding galvanically isolated from each other. When the mining vehicle is connected to the electrical network of the mine via the primary stator winding, the electric motor is arranged, at least for a period of time, to supply power to the at least one mining work device and, at least for a period of the time, to supply power via the secondary stator winding for charging the energy source. A method for energy supply of a mining vehicle is also provided.

Abstract: A drilling composition is provided. The composition includes: I) an organic phase comprising components: i. from about 20 wt. % to about 99.999 wt. %, based on the total weight of components i. and ii., of at least one linear or branched, cyclic or non-cyclic, saturated hydrocarbon; ii. from about 0.001 wt. % to about 25 wt. %, based on the total weight of components i. and ii., of at least one ester; II) from 0 to about 50 wt. %, based on the total weight of the composition, of water or aqueous phase; Ill) from 0 to about 60 wt. %, based on the total weight of the composition, of at least one additive, wherein the sum of the weight components I) to III) is 100 wt. %.

Abstract: A roller cutter drill bit with mixed bearing types includes a bit body with at least one journal facet and a cavity facet. A cavity extends into the bit body from the cavity facet. The bit body is configured to rotate about a bit axis during drilling. A journal extends outward from the at least one journal facet. A first rotatable cutter that supports a first plurality of cutting structures has a journal portion received by the cavity. A second rotatable cutter that supports a second plurality of cutting structures has a cavity portion that is receives the journal.

Abstract: A shear claw drill bit includes a bit body and a plurality of pick receptacles fixedly attached to the bit body. Each pick receptacle has a pick cavity. The shear claw drill bit further includes a plurality of picks. Each pick has a cutter cavity. The shear claw drill bit also includes a plurality of polycrystalline diamond compact (PDC) cutters. Each PDC cutter is disposed in the cutter cavity of a respective pick of the plurality of picks. A portion of each PDC cutter protrudes out of the cutter cavity of the respective pick.

Abstract: In a scanner-scale system for passing items through a read zone over a weigh platter of the scanner-scale, the system including an item overhang detection system operable for providing an output upon sensing that an item overhangs beyond an edge of the weigh platter, systems and methods are disclosed for using output from the item overhang detection system to both (1) reduce erroneous weighing upon sensing that an item overhangs beyond an edge of the weigh platter (such as by alerting the operator that an item overhang condition has been detected and thus prompting the operator to reposition the item so as to be fully on scale) and (2) initiate an alternate function of the scanner-scale independent of weighing operation.

Abstract: The invention relates to a climbing robot for masts/towers (1), in particular for wind turbines, comprising at least one first load-bearing device (5) and at least one second load-bearing device (6), wherein the distance between the load-bearing devices (5, 6) can be changed in the vertical direction by means of at least one linear drive (7, 8), and each load-bearing device (5, 6) comprises at least one clamping device (9, 10, 11) by means of which the respective load-bearing device (5, 6) can be clamped firmly on the mast/tower (1) and released from the mast/tower (1), in which at least some of the clamping devices (9, 10, 11), preferably each of the clamping devices (9, 10, 11), comprises at least one band element (9), which extends between two contact or fixing points (10, 11) arranged on the load-bearing device (5, 6) and can be placed in a flexible manner around a mast/tower (1) in the circumferential direction and against the circumferential surface of the latter and comprises at least one clamping driv