The present invention essentially relates to a method for assembling a beam and a structural element of an aircraft seat, characterised in that it comprises: a step of producing at least one recess in an inner face of a beam passage area of the structural element, a step of inserting the beam into the beam passage area, and a step of deforming the beam such that a deformed portion of the beam penetrates into the recess of the beam passage area.

The present invention essentially relates to a method for assembling a beam and a structural element of an aircraft seat, characterised in that it comprises: a step of producing at least one recess in an inner face of a beam passage area of the structural element, a step of inserting the beam into the beam passage area, and a step of deforming the beam such that a deformed portion of the beam penetrates into the recess of the beam passage area.

A plastic component having a core that has a thermoset matrix and an add-on part anchored to the core. At least the securing region of the add-on part can be formed from a thermoplastic and is secured by the securing region to the core of the plastic component, the securing region being attached to the core or inserted or pressed into the core, bonding, in a fusible state produced by the application of energy, in particular by ultrasonic vibrations, with the core and being anchored thereto or therein after solidification, in particular, as a connection anchor.

A heat exchanger includes a casing configured to direct a working fluid therethrough, and at least one heat exchanger (HE) section in the casing. Each HE section includes a pair of spaced supports. The spaced supports include: an upstream support and a downstream support with at least one of them including a coolant carrying body configured to direct a coolant therethrough. A first cross-support couples to and extends between respective upstream and downstream supports; and at least one second cross-support couples to and extends between the respective upstream and downstream supports. Cross-supports are vertically distanced from adjacent cross-supports. A plurality of tube positioners coupled to each cross-support position a plurality of heat exchange tubes extending across a working fluid path through the casing. The tube positioners and the cooling of the cross-supports allows ferritic material to be used for once-through, duct-fired HRSGs.

A heat exchanger includes a casing configured to direct a working fluid therethrough, and at least one heat exchanger (HE) section in the casing. Each HE section includes a pair of spaced supports. The spaced supports include: an upstream support and a downstream support with at least one of them including a coolant carrying body configured to direct a coolant therethrough. A first cross-support couples to and extends between respective upstream and downstream supports; and at least one second cross-support couples to and extends between the respective upstream and downstream supports. Cross-supports are vertically distanced from adjacent cross-supports. A plurality of tube positioners coupled to each cross-support position a plurality of heat exchange tubes extending across a working fluid path through the casing. The tube positioners and the cooling of the cross-supports allows ferritic material to be used for once-through, duct-fired HRSGs.

A quick release mechanism for a wheel includes a hub and a clip, which interact with a wheel or roller that may or may not be part of the invention per se. The hub is disposable on a drive shaft such that it will rotate with the drive shaft. An optional hub cap is disposable on the wheel and has an opening that is complimentary to the geometry of the hub to allow engagement thereof such that the hub the hub cap rotate together. The clip is disposable on the hub in a closed or an open position so that the hub cap cannot or can be removed from the hub.

A quick release mechanism for a wheel includes a hub and a clip, which interact with a wheel or roller that may or may not be part of the invention per se. The hub is disposable on a drive shaft such that it will rotate with the drive shaft. An optional hub cap is disposable on the wheel and has an opening that is complimentary to the geometry of the hub to allow engagement thereof such that the hub the hub cap rotate together. The clip is disposable on the hub in a closed or an open position so that the hub cap cannot or can be removed from the hub.

The invention is an assembly of prefabricated metal receptacles forming a swimming pool and a method for constructing the assembly. Among other features, the assembly is characterized by guided clamping structures that allow on-site construction without requiring on-site welding or access to the bottom or interior of the assembly.

The present invention discloses a head and body rapid replacing structure of a multi-functional power tool and a multi-functional power tool. The rapid replacing structure comprises a body shell; a torsion ring which is rotationally arranged beside a socket in the body shell and of which the axis is at least parallel to that of the socket; a head detachably inserted in a jack of the torsion ring; an energy storage device resetting after driving the torsion ring to rotate; and head locking pieces that can move in a straight line between a first position and a second position along the direction perpendicular to the axis of the torsion ring during the rotation of the torsion ring.

The present invention discloses a head and body rapid replacing structure of a multi-functional power tool and a multi-functional power tool. The rapid replacing structure comprises a body shell; a torsion ring which is rotationally arranged beside a socket in the body shell and of which the axis is at least parallel to that of the socket; a head detachably inserted in a jack of the torsion ring; an energy storage device resetting after driving the torsion ring to rotate; and head locking pieces that can move in a straight line between a first position and a second position along the direction perpendicular to the axis of the torsion ring during the rotation of the torsion ring.