A bonding washer for making electrical connection between two metal pieces that are to be mechanically fastened together. The washer, to be interposed between the two metal pieces, may be constructed so as to fasten to one of the pieces before the two pieces are joined. Teeth on the washer, positioned at right angles to the plane of the washer, are forced into each of the two metal pieces when the fastener is tightened, making electrical connection between the two metal pieces.

The present invention discloses a desulfurization unit, a solid oxide fuel cell (SOFC) system and a vehicle, the desulfurization unit comprises a container for holding a desulfurizing agent, wherein the container comprises: an inner wall and an outer wall, a water cavity is formed between the inner wall and the outer wall, a water inlet and a water outlet in communication with the water cavity are arranged on the outer wall, the top of the container is provided with a gas outlet and the bottom of the container is provided with a gas inlet; and a double threaded bush arranged at the gas outlet, wherein the double threaded bush comprises an inner bush and an outer bush that adopt threaded connection, the outer wall of the outer bush is connected to the hole wall of the gas outlet in a threaded manner, and the inner wall of the inner bush is connected to an adapter in a threaded manner. The structural design of the desulfurization unit of the SOFC system can effectively solve the problem of slow temperature rise of the desulfurizing agent in the desulfurization unit of the SOFC system.

In a screw-coupling structure between an internally-threaded body and an externally-threaded body, for connecting reinforcing bars: the internally-threaded body includes, on the inner diameter thereof, a parallel-tapered-integrated internal thread section formed by integrating a parallel internal thread section formed as a parallel screw thread, with a tapered internal thread section formed on one end of the parallel internal thread section so that the minor diameter thereof gradually narrows; and the externally-threaded body comprises, on the outer diameter thereof, a parallel-tapered-integrated external thread section formed by integrating a parallel external thread section formed as a parallel screw thread, with a tapered external thread section formed on one end of the parallel external thread section so that the major diameter thereof gradually narrows.

A composite tubular structure includes an elongate composite member having an inwardly tapered section at an end and an embedded nut retained in the end inwardly tapered section for forming a connection with another component. The inwardly tapered section has an inner surface which follows a tapered outer surface of the embedded nut, the inwardly tapered section narrowing the composite member in a longitudinal direction towards the end so as to provide a constriction which retains the embedded nut within the inwardly tapered section. The embedded nut comprises a multipart nut, comprising an internal nut and an internal support member, and wherein the internal nut is arranged to slide within the internal support member in a direction away from the end of, and into, the elongate composite member when the composite tubular structure is under conditions of excessive axial compressive load.

A wall mounting bracket for mounting a channel profile element to a wall surface includes a wall plate to be mounted to the wall surface, and at least one support for supporting an end portion of the channel profile element. The support is attached to and extends from the wall plate, The support includes at least one wall portion having fastening apertures. The support includes at least a first support profile and a second support profile. In use the first support profile bears against an exterior side of one of the opposing walls of the channel profile element and the second support profile bears against an interior side of the other one of the opposing walls of the channel profile element.

A locking mechanism comprises an S-shaped locking member which comprises respective locking hooks arranged at the end of opposed arms of the locking member. A pivot is arranged between the arms of the locking member. The locking member rotates around the axis (A) of the pivot. The locking mechanism further comprises a coupling for coupling the locking member to an actuator for rotating the locking member around the pivot axis (A). The coupling comprises at least one coupling element, an actuator coupling for coupling the at least one coupling element to the actuator and first and second drive couplings for coupling the at least one coupling element independently to each arm of the locking member for transmitting rotational movement thereto, such that failure of one arm of the locking member will not cause loss of drive to the other arm of the locking member.

A system, method, and apparatus for post-tensioning in masonry-based system, especially concrete support systems. In one embodiment, a system is presented that can include an anchor, pocket-former, and bolt, wherein the pocket-former can be configured to engage each of the anchor and bolt to facilitate securing of the system to a form. In another embodiment, a method of post-tensioning is presented, wherein a tendon can be suspended at the live end via connections facilitated by a pocket-former. In another embodiment, a system and method of post-tensioning is presented that prevents a pocket and anchor from being contaminated with debris that could ultimately compromise the integrity of the tensioned material.

A coupler including a fitting for mounting to externally threaded reinforcing bar for use in concrete construction, the fitting including a body having a portion with an internal thread for engagement with the thread of the reinforcing bar, wherein the internal thread has an asymmetric thread form having an outer ramped portion and an inner ramped portion, the outer ramped portion being inclined to a central axis of the coupler at a first angle, the inner ramped portion being inclined to the central axis of the coupler at a second angle, the first angle being smaller in magnitude than the second angle.

A post coupler expands laterally. The post coupler includes a first member that is hollow and has a first slanted face. A second member is also hollow and has a second slanted face that is abutted with the first slanted face. A rod extends through the first and second members; the rod has a head that is disposed at a head end and threads disposed at a thread end. A nut is engaged with the threads, and rotating the nut causes the first member to extend in a first lateral direction and causes the second cylindrical member to extend in a second lateral direction opposite the first lateral direction.

A structural profile includes an outer contour that has at least one longitudinal side and one transverse side. The longitudinal side and the transverse side are transverse to one another. The longitudinal side has a longitudinal-side groove and the transverse side has a transverse-side groove. The grooves each have a respective groove cross section in which a circle is capable of being inscribed. Longitudinal center axes of the grooves are arranged in a common groove plane, and the groove plane is parallel to a longitudinal center plane of the structural profile.