A method of using a split winglet includes providing an aircraft having a winglet attach fitting attaching a split winglet to a wing. The split winglet has an upper winglet and a lower winglet. The method additionally includes maintaining the winglet attach fitting and winglet at a first height relative to a fuselage when the aircraft is non-flying, and moving the winglet attach fitting and winglet to a second height relative to the fuselage when the aircraft is flying, the second height being higher than the first height.

An installation tool and fastener is particularly adapted for fastening a top plate to a roof support member and other structural connections. The installation tool comprises a telescopic tool assembly which transfers torque from a power driver tool to a fastener drive coupler. The installation tool has a receiver guide which is configured to concentrically guide a fastener into driver engagement with a fastener coupler. The coupler may have a driver tip with radial projections, a Philips driver tip or a square driver tip. In one embodiment, the installation tool fastener has a head with a maximum head diameter equal to the major thread diameter and a recess for coupling with the drive coupler.

A microfilter having a hydrophilic surface and suited for size-based capture and analysis of cells, such as circulating cancer cells, from whole blood and other human fluids is disclosed. The filter material is photo-definable, allowing the formation of precision pores by UV lithography. Exemplary embodiments provide a device that combines a microfilter with 3D nanotopography in culture scaffolds that mimic the 3D in vivo environment to better facilitate growth of captured cells.

A built-up beam includes a pair of I-beams each having opposing flanges, a web that extends between the opposing flanges, a plurality of flange openings in each of the opposing flanges, a plurality of web openings in the web, and a plurality of bolt holes in one of the opposing flanges. The I-beams are stacked together flange-to-flange in a stacked beam configuration and a plurality of bolts extend through the plurality of bolt holes and secure the pair of I-beams together in the stacked beam configuration.

A sleeve (20) for centering fasteners during the assembly of components such as facade elements on the substructure of a building envelope includes a sleeve body (23) and a connection bracket (25). The sleeve body (23) has a plurality of sleeve elements (21, 22) which are grouped around a central center axis A and are spaced apart from each other by gaps running in the sleeve longitudinal direction. At least a first (21) and a second (22) sleeve piece are connected to each other at an axial longitudinal end of the sleeve body (23) by a separable connection bracket (25), preferably the connection bracket is separable via predetermined breaking points. Such a sleeve is used in the construction of facades, wherein it is inserted into a pilot hole of a facade element, the connection bracket is broken off and a fastener is inserted into the sleeve. Driving the fastener centers the fastener in the sleeve and the sleeve is removed from the pilot hole.

A barrel nut assembly for use on a variety of firearms is provided. The assembly is made up of a barrel nut, generally cylindrical in shape with a threaded central bore, and an externally threaded locknut which is used in conjunction with the barrel nut to secure a barrel to a firearm upper receiver. The barrel nut has an integral bushing on its exterior constructed to support either the gas tube or piston of the host firearm's operating system. The barrel nut is configured so that it may be independently and non-rotationally held within a vice or other fixture during installation of the barrel and while the locknut is tightened to a preset torque to hold the barrel in place. The barrel nut assembly affords the user a method and apparatus that aligns a central bore in the bushing with the opening in the upper receiver that receives an operating system component of the firearm while the barrel nut is independent of the torque applied to the locknut to properly secure the barrel to the upper receiver.

A universal joint for vehicle drivetrains and the like that eliminates the spinning of bearing caps relative to yoke years and trunnions and inhibits inadvertent spreading of opposing ears of a yoke away from each other under increasing torsional loads to reduce wear and failure of the joint. Broadly, the disclosed universal joint includes a central body having a plurality of pairs of opposite apertures, first and second yokes that are disposed about the central body over respective ones of the pairs of apertures, and a plurality of trunnions inserted through the yoke ears and into the apertures of the body to pivotally secure the yokes to the body. Each trunnion is non-rotatable relative to its respective yoke and a locking assembly inhibits movement of each opposite pair of trunnions away from each other thereby inhibiting movement of the opposite ears of each respective yoke away from each other.

Furniture, such as a bed, dresser, cabinetry has a display system affixing a stack of interchangeable decorative panels to the furniture. The display system has an overlaying panelar frame that captures the stack of panels and has at least one elongated fastener securing the overlaying panelar frame on to a surface of the furniture item. The stack of interchangeable panels are each visually different such as having different colors and/or patterns and can be sandwiched between the overlaying panelar frame and the mounting surface in a pocket to immovably maintain the interchangeable panels against the furniture component. The stack of interchangeable panels can be rearranged such that a different panel is placed on top of the stack or the outermost position and thereby be visible through the opening in the overlaying panelar frame.

An apparatus is presented comprising a captive screw comprising an upper portion, an upper middle portion, a central middle portion, a lower middle portion, and a lower portion, the central middle portion comprising a threaded portion, the lower portion comprising a barbed portion, the upper middle portion and the lower middle portion comprising a smooth portion, and the upper portion comprising a grip portion, wherein an outer circumference of the barbed portion is flexible, wherein the captive screw is configured with a first attachment portion and a second attachment portion to attach to a first member of an auxiliary device, and wherein the captive screw is configured to act as a set screw with respect to a second member of an auxiliary device.

A method and system of affixing a plaque to a solid surface is provided. The method includes the steps of providing at least one opening in a face of the solid surface and inserting a plaque support into the at least one opening. The plaque support includes a body defining a passageway therethrough and having a first end and a second end. The first end has a flange portion. Further, at least one outer tab member extends radially outward toward the first end and at least one inner tab member extends radially inward toward the second end. The outer tab member engages the solid surface upon insertion of the plaque support into the at least one opening. The method and system further include providing the plaque with at least one installation fastener. The at least one installation fastener is inserted into the passageway of the plaque support, such that the at least one inner tab member engages the at least one installation fastener.