A micro fluid filtration system (100) preferably for increasing the concentration of components contained in a fluid sample has a fluid circuitry (1). The fluid circuitry (1) comprises the following elements: A tangential flow filtration element (7) capable for separating the fluid sample into a retentate stream and a permeate stream upon passage of the fluid, an element for pumping (3) for creating and driving a fluid flow through the fluid circuitry (1) and at least one element for obtaining information about the properties of the fluid sample within the circuitry. The circuitry further comprises a plurality of conduits (24) connecting the elements of the fluid circuitry (1) through which a fluid stream of the fluid sample is conducted. The circuitry (1) has a minimal working volume of at most 5 ml, which is the minimal fluid volume retained in the elements and the conduits (24) of the circuitry (1) such that the fluid can be recirculated in the circuitry (1) without pumping air through the circuitry (1). An integrated microfluidic element (20) of the circuitry (1) contains the functionality of at least two elements of the group of elements of the circuitry (1).

A dual-threaded screw structure having two kinds of threads formed on a shank, namely, a first thread consisting of one or more threads and a second thread having a lead larger than a lead of the first thread is provided herein. The claimed configuration has a beneficial effect of preventing looseness when the screw structure is fastened with double nuts. One embodiment of the present invention exhibits an example of a dual-threaded screw structure, in which a root diameter between the ridges of the hill-like second thread ridges is formed to be larger by 10% of a height of the ridges than an effective diameter of a first thread. In this case, an inner diameter of an internal thread of a second nut for preventing looseness is formed to be larger than the effective diameter of the first thread by 10% of the height of the ridges.

A dual-threaded screw structure having two kinds of threads formed on a shank, namely, a first thread consisting of one or more threads and a second thread having a lead larger than a lead of the first thread is provided herein. The claimed configuration has a beneficial effect of preventing looseness when the screw structure is fastened with double nuts. One embodiment of the present invention exhibits an example of a dual-threaded screw structure, in which a root diameter between the ridges of the hill-like second thread ridges is formed to be larger by 10% of a height of the ridges than an effective diameter of a first thread. In this case, an inner diameter of an internal thread of a second nut for preventing looseness is formed to be larger than the effective diameter of the first thread by 10% of the height of the ridges.

The invention relates to an alignment element (10), with which an attachment part (50) can be positioned on a structure part (42) of a motor vehicle. The alignment element (10) is also suitable for retaining the attachment part (50) at a defined distance to the structure part (42) under non-destructive force transmission, and for compensating an occurring angular adjustment (W). The invention also relates to an illumination assembly (28) for a vehicle having the alignment element (10) and a corresponding method for mounting an illumination device (34) on the vehicle. Finally, a vehicle (32) comprising the illumination assembly (28) is also an object of the invention.

A hardware component imitating a nut/bolt/washer connection for structural members includes a base portion with a disc-shaped base plate and a cylindrical member including an outer surface in the shape of a hex nut. The disc-shaped base plate extends radially to the cylindrical member and imitates a washer. The disc-shaped base plate includes a first opening having a first diameter and the cylindrical member includes a second opening having a second diameter, where the first and second openings are concentric and said second diameter is larger diameter than said first diameter. The first opening is sized to receive therethrough a shaft of a mounting device, and the second opening is sized to receive therein a head of said mounting device.

A hardware component imitating a nut/bolt/washer connection for structural members includes a base portion with a disc-shaped base plate and a cylindrical member including an outer surface in the shape of a hex nut. The disc-shaped base plate extends radially to the cylindrical member and imitates a washer. The disc-shaped base plate includes a first opening having a first diameter and the cylindrical member includes a second opening having a second diameter, where the first and second openings are concentric and said second diameter is larger diameter than said first diameter. The first opening is sized to receive therethrough a shaft of a mounting device, and the second opening is sized to receive therein a head of said mounting device.

A fastener structure includes a fixing member and an operating member. The fixing member includes a limiting section and a body portion; and the operating member includes an operating section, a retaining section and an engaging section connected to the body portion. The body portion can be mounted to an object, and the operating section can be manipulated to move the engaging section on the body portion and to fasten the retaining section to another object. When the operating section is manipulated reversely, the retaining section can be released from the other object to thereby separate the two objects from each other. Therefore, with the fastener structure, two objects can be quickly fastened together and easily released from each other.

A dual load path assembly includes an outer pin, which has an axial through bore and at least one end that includes a threaded section. The threaded section includes at least one slot orientated from the end and extends axially along at least part of the threaded section. The assembly also includes an inner pin, which is receivable in the through bore of the outer fastener. A female fastener comprising at least one notch is receivable on the threaded end of the outer pin. A locking plate comprises a through hole via which it is receivable on the shank of the inner pin and at least one projection. The locking plate is arranged such that the projection is receivable in both the notch and the slot. A locking member engages with the end of the inner pin and abuts a face of the locking plate thereby sandwiching the locking plate between the locking member and the female fastener.

A connection apparatus for attaching a first truss to a second truss has a first and second connection segment, a bolt and an optional spring. The first connection segment has an aperture dimensioned to receive the threaded end and the shank of the bolt. The aperture is also dimensioned to prevent the head end of the bolt and the threaded end from passing through, and the aperture comprising a recess for receiving the second end of the spring. The first connection segment also has a side opening, open to the aperture, dimensioned to receive the shank of the bolt. The first connection segment also has a shoulder portion within the aperture dimensioned to closely fit around the shank of the bolt and prevent the threaded end of the bolt from passing therethrough. The second connection segment for attaching to the second truss has a threaded hole dimensioned to fixably receive the threaded end of the bolt.

A connection apparatus for attaching a first truss to a second truss has a first and second connection segment, a bolt and an optional spring. The first connection segment has an aperture dimensioned to receive the threaded end and the shank of the bolt. The aperture is also dimensioned to prevent the head end of the bolt and the threaded end from passing through, and the aperture comprising a recess for receiving the second end of the spring. The first connection segment also has a side opening, open to the aperture, dimensioned to receive the shank of the bolt. The first connection segment also has a shoulder portion within the aperture dimensioned to closely fit around the shank of the bolt and prevent the threaded end of the bolt from passing therethrough. The second connection segment for attaching to the second truss has a threaded hole dimensioned to fixably receive the threaded end of the bolt.