A riveting tool accessory comprises a cylinder handgrip (1) A rotating member (2) and a transmission member (3) are disposed in the cylinder handgrip in a penetrating manner, the rotating member is axially positioned and circumferentially and rotatably connected to the cylinder handgrip, and the transmission member is circumferentially positioned and axially and movably connected to the cylinder handgrip. The rotating member and the transmission member can be connected by means of a thread structure (4). When the rotating member rotates forwards or backwards, the transmission member can be driven to move backwards or forwards. The front end of the transmission member is provided with a connecting member (5) capable of loading a riveting fastener (100), and the front end of the cylinder handgrip is provided with a guide nozzle assembly (6). The connecting member is disposed in the guide nozzle assembly in a penetrating manner, and the front end of the connecting member can reach out of the guide nozzle assembly. A compression pretightening spring (7) is disposed between the transmission member and the guide nozzle assembly, and a safety valve mechanism (8) is disposed between the transmission member and the connecting member. The riveting tool accessory has the advantages that the structural design is reasonable, and the riveting tool accessory can be adaptive to a driving device containing power output, and enables the riveting fastener to switch screw pairs before a force is applied to the riveting fastener. Also disclosed is a riveting tool using the riveting tool accessory.

A rivet nut (rivnut) installation method and a rivnut structural configuration are disclosed that can be implemented separately in conjunction with one another to serve as an anchor in and/or a workpiece at an installation location. The rivnut installation method involves inserting a rivnut onto an externally threaded mandrel, rotating the mandrel while a free end of the mandrel is in contact with the workpiece, and driving the free end of the mandrel and the rivnut through the workpiece while continuing to rotate the mandrel. The method is particularly useful when the workpiece includes one or more substrate layers composed of a low ductility material such as a polymer composite. The rivnut structural configuration includes the incorporation of an external threading onto at least a portion of a hollow shaft of the rivnut.

A marine deck member with enhanced surface traction and the process for forming the same. The marine deck member comprises a sandwich-type composite panel made by a compression molding process. In such a process, the panel is made by subjecting a heated stack of layers of material to cold-pressing in a mold. The cellular core has a 2-D array of cells, each of the cells having an axis substantially perpendicular to the outer surfaces, and extending in the space between the layers or skins, with end faces open to the respective layers or skins. The surface traction of this type of composite panel can be enhanced for marine deck applications by controlled debossing, or embossing, of the first skin while it cools in the compression mold. The debossing effect can be effected by applying pressurized gas, e.g., pressurized air, onto the outer surface of the first skin while in the compression mold. The embossing can be effected by applying vacuum pressure on the outer surface of the first skin while in the compression mold.

In order to further develop a blind rivet element (5) comprising a head (51), an adjoining hollow shaft (53), the outer side of which has an outer diameter smaller than the head (51), and an internal thread (54) provided inside the shaft (53) and having an axial separation from the head (51), in such a way that when installed the blind rivet element (5) always forms a controlled deformation, in particular in the form of a bulge, at the same specifiable location, it is proposed that the shaft (53) is provided with a radially outwardly protruding adjustment contour (55) in the region of the head (51), that the shaft (53) has a curvature (57) formed in the radial direction and that said curvature (57) is arranged between the adjustment contour (55) and the internal thread (54).

Provided is a nacelle for a wind driven power plant, the nacelle including a nacelle bottom cover, wherein the nacelle bottom cover includes two or more segments, each of the segments being configured to contain a respective predefined maximum volume of a liquid in a receptacle in a case of leakage, and wherein the respective receptacles are configured to collectively contain a total volume that corresponds to a total amount of liquids in the wind driven power plant, in particular a total amount of lubricating oils and/or cooling liquids in the wind driven power plant. Also provided is a wind driven power plant including the nacelle and a wind park including a plurality of the wind driven power plants.

A blind rivet nut-setting tool includes an output shaft defining a longitudinal axis. The output shaft is moveable along the longitudinal axis between a first position and a second position. The blind rivet nut-setting tool further includes a first motor configured to rotate the output shaft about the longitudinal axis in response to an external force moving the output shaft in a rearward direction from the first position to the second position. The blind rivet nut-setting tool further includes a second motor configured to translate the output shaft along the longitudinal axis in the rearward direction.

A blind rivet-nut having an annular-flange-like setting head and a hollow shaft for securing a blind rivet-nut in an opening of a carrier. The hollow shaft has a free end having a threaded portion for receiving a threaded element of a tensioning tool. A clamping portion adjacent to the setting head forms a bead-like deformation when the tensioning tool is used to clamp the carrier between the bead-like deformation and the setting head. A threadless shaft portion is formed between the clamping portion and the threaded portion. The threadless shaft portion is threaded by a thread self-rolling or thread self-tapping fastener. The fastener is received in a positive-locking manner when the fastener is screwed into the thread formed on the previously threadless shaft portion. A method is also disclosed for securing a component to a carrier by a blind rivet-nut.

Provided is a nacelle for a wind turbine, the nacelle including an support frame and a nacelle cover coupled to the support frame, wherein the nacelle cover comprises a self-supported nacelle roof comprising a plurality of panels made of a composite, the panels being connected to each other by means of connection flanges integral to the panels, wherein the self-supported nacelle roof extends, while being unsupported by the support frame at least in a center section of the self-supported nacelle roof, from a first lateral side of the nacelle to a second lateral side of the nacelle. A wind turbine including the nacelle, a wind park including a plurality of wind turbines and methods is also provided.

An apparatus providing mating alignment between internal threading of a rivet nut and the external threading of the mandrel of an unclaimed installation tool before anchoring the rivet nut in a hole in a substrate, or the external threading of an unclaimed threaded fastener after anchoring in the substrate hole. The improvements include a bushing sleeve seated in a counterbore in the rivet nut, for guiding the external threading of the mandrel or fastener to the internal threading of the rivet nut. The sleeve also enables play during upset of the rivet nut, and provides visual confirmation whether the rivet nut has been properly anchored in the hole of substrate.

A semiconductor package is disclosed. The semiconductor package comprises: a metal shim, a package substrate attached onto a front side of the metal shim, wherein the package substrate comprises an opening that passes therethough; one or more electronic components mounted on the package substrate; an encapsulant layer partially formed on the package substrate to expose a region of the package substrate and the opening of the package substrate, wherein the encapsulant layer encapsulates the one or more electronic components on the package substrate; a first connector mounted in the exposed region of the package substrate; a second connector mounted in the encapsulant layer and on the package substrate; and a magnet mounted in the opening of the package substrate and extending from the metal shim through the package substrate and the encapsulant layer.