The invention relates to a device (100), a system (10) and a method for modifying the cross section of a tower section (1) of a wind turbine, wherein the tower section comprises a flange (4) located at an end (3) of the tower section having a plurality of through holes (5) spaced around its circumference for securing said tower section to another wind turbine section. The method comprises securing tensioning mechanism (14) to each of a pair of said plurality of through holes in the flange of the tower section, said pair of holes being generally opposed; and applying a tensile force between said pair of holes in the flange of the tower section.

In implementations of a pressure lock retention fastener, the fastener assembly includes an insert sized for insertion into a fastener hole in a first panel. The fastener assembly has a threaded collet sized to slide in the insert and has expandable flanges that extend below the insert. The expandable flanges are sized for insertion into an aligned hole in a second panel. The fastener assembly also includes a screw installable through the insert to engage the threaded collet. The screw exerts a force that pushes the expandable flanges outward as screw rotation drives the screw into the threaded collet, and ridge locks of the expandable flanges seat up against the second panel effective to fasten the panels together. In implementations, a plate is installable between the panels with slotted holes having anti-rotation tabs that prevent a fastener assembly from spinning in the panel holes.

In implementations of a pressure lock retention fastener, the fastener assembly includes an insert sized for insertion into a fastener hole in a first panel. The fastener assembly has a threaded collet sized to slide in the insert and has expandable flanges that extend below the insert. The expandable flanges are sized for insertion into an aligned hole in a second panel. The fastener assembly also includes a screw installable through the insert to engage the threaded collet. The screw exerts a force that pushes the expandable flanges outward as screw rotation drives the screw into the threaded collet, and ridge locks of the expandable flanges seat up against the second panel effective to fasten the panels together. In implementations, a plate is installable between the panels with slotted holes having anti-rotation tabs that prevent a fastener assembly from spinning in the panel holes.

An attachment assembly with a battery module, a cooling device, and an attachment device for attaching the battery module to the cooling device. The battery module is arranged on the cooling device. A heat-conducting element is arranged between the battery module and the cooling device. The battery module has a first attachment component. The attachment assembly has a second attachment component, which is provided by a part of the cooling device or is connected to the cooling device. The first attachment component is attached to the second attachment component by the attachment device.

A fastener kit can securely affix a washing machine on a lightweight wall. The washing machine includes a rear panel for coupling to the wall through the fastener kit. A tub configured to contain washing water may be integrally formed with the rear panel. The fastener kit has one end section equipped with a sleeve that can radially expand to form tight contact with the inner surface of a fastening hole on the lightweight wall. The other end section of the fastener kit is coupled to the rear panel. The lightweight wall may be porous with regular or irregular cavities.

“CONSTRUCTIVE DISPOSAL APPLIED IN MECHANICAL EXPANSION FIXER FOR METAL STRUCTURES OR THE LIKE”, which comprises a kit of pieces which form the mechanical expansion fixer (1), it has a hexagonal head (2) and a cylindrical body (3) endowed with full thread (4), has flat washer (5) and a jacket (6) in low-carbon steel; also on the head of the jacket (6) has a hexagonal (7) to ensure that the jacket does not rotate during mounting and tightening, which provides a wide contact area option to use the key that holds the fixer (A and B) in this way, it is not necessary to position it in the hole in a specific way, ensuring agility in the application; cone guided (8) is pre-assembled with the assembly being threaded in the thread base of the fixer (1), there is a unique locking system of guides (9), these guides fit into the openings or slots of jacket (10) and prevent the cone to rotate false in the jacket (6), as the head of the hexagon socket (7) when locked with a fixed key or star prevents this condition, this also applies in situations in which the level of friction between the fixer (1) and the base material is reduced, so there is a strong and rigid fixation between the metallic hollow profiles (11) and the fixer (1).

A device and method for an expandable anchor sleeve. An expandable anchor sleeve may comprise a front-end and a back-end for a wellbore comprising a base casing. The expandable anchor sleeve may further comprise an anchoring element having a conical shape with a front-end radial thickness being larger than a back-end radial thickness, not less than a difference between corresponding radii of maximum and minimum internal diameters of the base casing and providing the anchoring element is in interference contact with the base casing upon radial expansion of the expandable anchor sleeve by an expansion swage propagating in the front-end direction. A method for installation of an expandable anchor sleeve in a well comprising a base casing which may comprise connecting an expandable anchor sleeve to an expansion, deploying the expandable anchor sleeve, activating the expansion device, and removing the expansion device from the well.

A glueless shaft joining system, apparatus and method are disclosed. A base insertable into the hollow interior of the shaft can include a plurality of flexible fingers separated by a slot defined between each of the adjacent flexible fingers. The interior of the base is hollow and includes a threaded portion adjacent to the distal end that extends inwards in a proximal direction. A set screw can be inserted into the threaded portion of the hollow interior of the base. The set screw includes a threaded head portion and a non-threaded tail portion that diverges as it extends away from the head portion. The tail portion deflects the flexible fingers laterally outwardly as the set screw is advanced in the proximal direction through the base. A component, such as a broad head or arrow nock can be coupled to the insert as desired.

An adapter device for ceramic cutting machines (2) that includes an adapter plug (1) for the hole (8) of the tool holder (7) of a ceramic cutting machine (2. The plug (1) includes a hollow cylindrical shape with a stop (12) that performs an axial fixation in a direction of the plug (1) in the hole (8) of a tool holder (7) of the ceramic cutting machine (2); and a longitudinal slot (13) that leaves open the inner hollow space of the plug (1) along its entire length. The longitudinal slot (13) has a narrower segment in a part of the plug (1) that is nearest the end (21) having the stop (12), and a wider segment in the part of the plug (1) that is near the end (22) of the plug (1) opposite the stop (12).

A removable single side fastener with ultra-low stake height grip range is disclosed. The fastener includes a housing body, a threaded screw, a drive nut and a collet body. The housing body has a housing head portion and a shank portion extending from the housing head portion with the shank portion forming at least two longitudinal slots. The threaded screw, disposed within the housing body, has a head portion rotatably confined within the housing head portion. The drive nut is rotationally coupled to the threaded screw and rotationally constrained relative to the housing body. The collet body has a pair of collet body legs converging inwardly. Each collet body leg has a toe which may extends radially outward beyond the longitudinal slots to compress work pieces against the housing head portion for fastening.