A machine for rotary driving screw anchors into underlying ground and related. The machine has a mast with a rotary driver and a mandrel driver oriented on a common axis. The mandrel driver passes a mandrel through the rotary driver and the screw anchor to allow the mandrel to be actuated ahead of the screw anchor while the rotary driver drives the screw anchor into the ground. Alternatively, the mandrel driver may also drive a hammering drill through the screw anchor to clear a path ahead of it through subsurface rocks.

A thermally stabilized fastener system and method is disclosed. The disclosed system/method integrates a fastener (FAS) incorporating a faster retention head (FRH), fastener retention body (FRB), and fastener retention tip (FRT) to couple a mechanical member stack (MMS) in a thermally stabilized fashion using a fastener retention receiver (FRR). The MMS includes a temperature compensating member (TCM), a first retention member (FRM), and an optional second retention member (SRM). The TCM is constructed using a tailored thermal expansion coefficient (TTC) that permits the TCM to compensate for the thermal expansion characteristics of the FAS, FRM, and SRM such that the force applied by the FRH and FRR portions of the FAS to the MMS is tailored to a specific temperature force profile (TFP) over changes in MMS/FAS temperature. The TCM may be selected with a TTC to achieve a uniform TFP over changes in MMS/FAS temperature.

The present disclosure relates to a blind fastener and a method of installation thereof. The blind fastener comprises a sleeve and a mandrel. The sleeve comprises a first sleeve end, a second sleeve end, and a cavity extending from the first sleeve end to the second sleeve end. The mandrel is configured to be at least partially received by the cavity of the sleeve. The mandrel comprises a first mandrel end disposed adjacent to the first sleeve end and comprising an enlarged portion having a diameter greater than a diameter of the cavity, a second mandrel end comprising a pull region, and a shank region extending intermediate the first mandrel end and the second mandrel end. The pull region comprises an axial length no greater than four times a diameter of the shank region and is configured to be engaged by an installation tool.

A machine for rotary driving screw anchors into underlying ground and related. The machine has a mast with a rotary driver and a mandrel driver oriented on a common axis. The mandrel driver passes a mandrel through the rotary driver and the screw anchor to allow the mandrel to be actuated ahead of the screw anchor while the rotary driver drives the screw anchor into the ground. Alternatively, the mandrel driver may also drive a hammering drill through the screw anchor to clear a path ahead of it through subsurface rocks.

A fastener assembly for use with one or more workpieces. The fastener assembly can be a single-sided (i.e., blind) fastener assembly in which the fastener assembly is inaccessible from one side of the workpiece(s). In this regard, the workpiece(s) can make-up an enclosed component, for example. The fastener assembly can have a fastening end, such as a threaded stud, for securement with a distinct component that is otherwise detached from the fastener assembly. The workpiece(s) can be composed of a carbon fiber composite material, an aluminum material, or another type of material.

A rivet fastener assembly is configured to securely clamp onto one or more components. The rivet fastener assembly includes a grommet including a collar and a column extending from the collar. A passage is defined through the collar and the column. The column includes component-engaging legs that are configured to fold and directly contact the component(s) when folded, and reinforcing legs that are configured to fold and reinforce the component-engaging legs when folded as the component-engaging legs directly contact the components).

An orthopaedic stabilisation device is described. The orthopaedic stabilisation device comprises a stabilisation member and at least two legs coupled to the stabilisation member. Each leg is arranged for positioning in a respective bore hole in bone, and for receiving an element within the leg such that the element can facilitate fastening the leg within the bore hole in bone. The stabilisation member may be arranged such that a length of the stabilisation member is alterable by a predefined amount, the predefined amount being adjustable.

The invention relates to a method for producing a hose connection (1) with pressure measuring point for a pressure sensor through a closed wall (3).

A sealed battery includes a filling hole, and a gasket and a blind rivet that seal the filling hole. A tapered surface that is inclined toward an inside of a battery case is formed around the filling hole of the battery case. The filling hole is sealed by the gasket and the blind rivet by the blind rivet plastic deforming.

A fastener comprising: a) a body having: i) a first cylindrical portion with a first diameter, ii) a second cylindrical portion with a second diameter, iii) a shoulder part of the first cylindrical portion, iv) an exterior threaded portion, and v) a cylindrical hole extending along an axis of the body; b) a mandrel having: i) a shank, and ii) a mandrel head at an end of the shank; and c) a head having an opening defined by an interior threaded portion; wherein the mandrel shank at least partially occupies the cylindrical hole of the body; wherein the mandrel head is located outside of the body and opposite of the exterior threaded portion of the body; and wherein the exterior threaded portion of the body and the interior threaded portion of the head are engaged to removably secure the body to the head.