Abstract: An attachment component which includes a body, the body having attachment means intended for allowing the attachment component to be assembled with a part including complementary attachment means, an insertion tip arranged at one end of the body so as to allow at least one portion of the body to be inserted through a part made of composite material, an axial abutment intended for halting the insertion of the body through the part made of composite material, and a breakable portion inserted between the insertion tip and said end of the body, the breakable portion being configured to break when a predetermined force is applied to the insertion tip with a view to detaching the insertion tip from the body.

Abstract: A shear pin for calibrating an industrial robot, the shear pin including an elongated body including a weakening defining a break location in case of overload. The shear pin is configured to be mounted to a calibration pin holder on the robot. A maximum force that the calibration pin can exert on the robot during calibration can be easily limited by dimensioning the weakening appropriately.

Abstract: A method enabling two holes belonging to two parts to be aligned relies on use of a tool, comprising a body, having a first outer surface which gradually wanders from a longitudinal axis of the body as it extends from a first end of the body, and a hollow part having a second outer surface with a complementary section to the section of the holes. The hollow part comprises a hole through which it is removably mounted on the tool so that the second outer surface extends the first outer surface on an opposite side to the first end of the body. The method comprises inserting the first end of the body into the first hole, and then operating the tool to push the body and then the hollow part together into the holes. This method especially applies to the assembly of a floor module to an aircraft fuselage.

Abstract: A safety shear bolt includes a main bolt portion and a torque head portion connected to the main bolt portion. The torque head portion includes an extended head portion, a stem portion rigidly connecting the main bolt portion to the torque head portion, and a coupling mechanism rotatably connecting the extended head portion to the main bolt portion. The stem portion is configured to shear when a predetermined torque is applied to the extended head portion, while the coupling mechanism prevents the extended head portion from dropping after shearing off from the main bolt portion.

Abstract: An anchoring element includes a screw having a shank with a bone thread portion and a head. The anchoring element also includes a receiving part for connecting the screw to a rod-shaped element, the screw and the receiving part being connected to one another in a polyaxial or monoaxial manner, and the shank of the screw being of tubular design and its wall having a plurality of recesses. The bone anchoring element provides for the bone screw to fuse with the surrounding bone substance, and at the same time bone portions or vertebrae can be positioned relative to one another and fixed. Moreover, a substance to be introduced into the bone can be introduced precisely at the desired site.

Abstract: A fastener for highly curved access panels on aircraft or other structures, featuring a bottom-grasping design allowing for an unblemished outer panel surface, simple and rapid pneumatic fastener actuation, built-in clamping pre-load, and full retractability of the fastener inside the supporting structure. The fastener includes a Belleville spring with a piston centrally disposed therein, where the piston and spring deflect outward upon application of pneumatic pressure. A pressure chamber within the piston has inlet and outlet orifices designed so that the pressure in the piston chamber gradually increases, requiring several seconds to reach a pressure which causes locking dogs in the piston to deploy radially into a cavity in the access panel. When pressure is removed, the Belleville spring relaxes, the locking dogs grasp a lip of the cavity, and the access panel is latched onto the structure with a clamping pre-load. A pneumatic sequence for unlatching is also provided.

Abstract: A fastener for highly curved access panels on aircraft or other structures is disclosed. The fastener features a bottom-grasping design which allows for an unblemished outer panel surface, simple and rapid pneumatic fastener actuation for both latching and unlatching, high reliability, built-in clamping pre-load of the access panel onto the structure, and full retractability of the fastener inside the supporting structure. The fastener includes a Belleville spring with a piston centrally disposed therein, where the piston and spring deflect outward upon application of pneumatic pressure. A pneumatic valve opens upon application of a higher pressure, allowing locking dogs in the piston to deploy radially into a cavity in the access panel. When pressure is removed, the Belleville spring relaxes, the locking dogs grasp a lip of the cavity, and the access panel is latched onto the structure with a clamping pre-load. A pneumatic sequence for unlatching is also provided.

Abstract: A method can include providing a multi-piece locating pin, inserting a pin piece of the multi-piece locating pin into an opening in a wall of a bearing positioned in a bore of a housing of a turbocharger assembly, and securing a screw piece of the multi-piece locating pin in an opening of the housing to thereby secure the pin piece and axially locate the bearing in the bore of the housing of the turbocharger assembly. Other exemplary pins, arrangements and methods are also disclosed.

Abstract: A jet blast wall structure is provided which is adapted to withstand and deflect high temperature jet blasts from the jet engines of aircraft. The structure comprises a plurality of panels, each of which has a front panel face and edge frame members at each side of the front panel face to which the front panel face is secured. All components, including each front panel face is made substantially of fiberglass, and each edge frame member and each bolt or nut, used for production of the structure is also made from fiberglass. The structure is designed to have a predetermined shear strength, whereby in the event of impact of an aircraft with the jet blast wall structure, the bolts in the edge frame members of the impacted panel or panels will fail in shear so as to permit the impacted panel or panels to collapse and thereby so as preclude significant damage to the impacting aircraft.

Abstract: A fastening device includes a fastening member that fixedly fastens fastened members, and a driving member that is capable of releasing a fastening state of the fastening member by applying a driving force to a moving portion provided in the fastening member to drive it, wherein the driving member is formed of a shape memory alloy, and the driving force is a restoring force of the shape memory alloy to its memory shape.

Abstract: An anti-seizing composition that facilitates securing fasteners in an assembly, e.g., a nail that is driven by a hammer or a threaded nail or screw that is screwed into a coupling, a nut, or a building block, etc. In one embodiment, the composition comprises a sufficient amount of boron nitride, which upon application on the contact surface of the fastener, allows the fastener to be quickly secured without seizing and/or galling. The invention further relates to a method for securing fasteners in an assembly by applying an effective amount of boron nitride powder composition onto the contact surface of the fasteners, i.e., the pointed end or the threaded surface of the shank.

Abstract: The invention relates to a pyromechanical separating element having a hermetically sealed pyrotechnic pressure element (2), which is installed in a housing (1) and has a gas-forming pyrotechnic charge, and a detachable latching pin (5) which is separated from the pressure element (2) by a driving volume (19) and is inserted into the housing (1), wherein a first securing point is arranged on the housing (1) and a second securing point is arranged on the latching pin (5), and the latching pin (5) is anchored on the housing (1) by way of an arresting and force-limiting element (8).

Abstract: A safety device provides quick and easy removal or separation of a part or assembly from a machine or installation base. The safety release fasteners that secure the part or assembly to the machine or installation base have interconnected sections that are releasable by simply tugging on the part or assembly to allow the sections to snap apart. The breaking of the fastener releases the part or assembly from the machine or installation base, thereby freeing from imminent danger the person, whose hair, clothing or limb may be caught. Axial separation of the fasteners prevent injury to a person or damage to a machine or installation base or to a part or assembly, such as when a large inanimate object is drawn into an intake of a machine or installation.

Abstract: A joining member for joining parts or materials to form a joined structure is constituted by a composite material containing a heating assistant in a matrix material. For disintegrating the joined structure, it is placed in a heating zone, and a high frequency magnetic field or a high frequency electric field, or a high frequency magnetic field and a high frequency electric field are applied to the joining member. The heating assistant may be in a form of a particle or a fiber containing at least one of a soft magnetic material, an electrically conducting material and a dielectric material. The matrix material may be plastic or ceramic. The disintegration of the joined structure can be efficiently and selectively carried out, thus contributing to efficient recycling.

Abstract: An unlockable connecting device between two objects is provided. The device includes a connecting member for connecting the objects when the device is in a connected state, and an elastic system for applying to the connecting member a tensile stress for breaking the connecting member when the device is in a separation state. The tensile stress is caused by expansion of the elastic system as a result of elastic resiliency of the elastic system.

Abstract: A method for assisting in the installation of an electrical fixture and an electrical fixture installation assist device formed as an attachment bolt formed as an elongate rod member capable of engagement with the attachment tab of a junction box, a weakened portion provided along the length of the elongate rod at a selected location, at least one end of the rod capable of passing through suitable openings in the fixture, a fastener carried by the end of the rod which extends through the openings in the fixture, the fastener capable of temporarily supporting the fixture adequately spaced from the junction box to facilitate completion of the electrical connection between the junction box and the electrical device carried by the fixture, the fixture capable of being raised along the elongate rod to a level above the weakened portion, the rod capable of being severed at the weakened portion upon the fixture reaching the level and the fastener adapted to be engaged with the remainent portion of the rod member for

Abstract: A non-explosive separation device for releasably holding together components of equipment or apparatus which are to be separated under controlled conditions. The separation device and method of operation includes a retaining element having a strain concentrated portion which completely cleaves when strained at a predetermined magnitude. Strain is applied to the retaining element by an actuating element which is comprised of a solid state phase change material having a shape memory. The actuating element is deformed to an armed shape at a temperature below the phase-change transition temperature. The device is activated by heating the actuating element through its transition temperature so that it recovers toward its memory shape. The retaining element is strained beyond its ultimate strength so that it cleaves at the strain concentrated portion.

Abstract: A separable fastener includes a fastener body having a head end and a shank nd. The head end defines a generally cylindrical open ended cavity in which a cylindrical punch is disposed. The cavity is sealed and closed by a gas generator that develops an increasing fluid pressure against the punch. The punch is restrained within the cavity by a retaining ring which yields once a preselected gas pressure is reached. The release of the punch causes it to rapidly accelerate in a short distance to impact the shank end of the fastener body. The shank end is thereby sheared from the body with the void created in the body being sealed by the impacting punch.

Abstract: A shear type separation fastener having a punch piston which shears a ring of material from the head of a bolt to face the shank of the bolt. The punch piston has a face with a shearing edge that presents an advancing point of contact with the bolt head to reduce the maximum force needed to shear the material.