A modular wall overlay system for installation on a support surface includes a frame; a cover that is securely, yet detachably, retained on and along a front face of the frame by a tensioning mechanism that is configured to tension the cover; and elastic corner inserts that are disposed in corners of the frame and include curved outer surfaces that are configured to permit the cover to be stretched over the elastic corner inserts creating radiused corners and preventing tearing of the cover in corners thereof when the cover is tensioned by the tensioning mechanism.

A modular wall overlay system for installation on a support surface includes an outer frame having a pair of opposing ends and a pair of opposing sides and a customizable inner frame that is coupled to the outer frame. The inner frame includes a plurality of transverse supports that extend between the opposing sides and a plurality of longitudinal supports that extend between the opposing ends. The longitudinal supports and the transverse supports lie in a common plane defined within the outer frame. The system further includes a cover that is securely retained on the outer frame.

A lattice system for structures includes a lattice joint housing and a plurality of structural joints. Each of the plurality of structural joints have a side entry slot for insertion of keyed features on a mating lattice member. Each of the plurality of structural joints are configured to facilitate rotation of the mating lattice member, semi-permanently holding the mating lattice member in place with an electro-permanent magnetic (EPM) retaining device.

A magnetic strut channel fitting (10) includes first and second plates (12, 14) connected to each other and a plurality of magnets (16) embedded into at least one of the first and second plates. According to another embodiment of the present invention, a magnetic strut channel fitting includes a substantially flat plate and a plurality of magnets embedded into the plate. According to yet another embodiment of the present invention, a magnetic strut channel fitting includes a substantially flat connecting plate, first and second arm members, each of the first and second arm members having a vertical plate and a horizontal plate, and a plurality of magnets, the plurality of magnets embedded into the connecting plate to allow the magnetic strut channel fitting to be magnetically adhere to a strut channel. The plurality of magnets allow the magnetic strut channel fitting to be magnetically adhered to a strut channel.

The invention relates to a connecting element (1) for producing a connection between a hollow profiled element (16) and a further component (17), wherein the connecting element (1) is designed for at least interlockingly engaging with the hollow profiled element (16) and for connecting to the further component (17). According to the invention, at least two contact surfaces (2, 3), which are arranged at an offset to each other in height, are provided on the connecting element (1) for contact with at least two sections (18, 19) of the hollow profiled element (16) that correspond to said contact surface.

A connector assembly, having an upper connector coupled to a lower connector and a gusset plate sandwiched between the upper and lower connectors. Also, disclosed is a hoistable connector assembly, a lifting frame assembly, a coupling system for modular frame units, a method for assembling a module unit using the connector assembly, and a modular frame unit and building having the connector assembly.

A corner assembly for interconnecting first and second frame members. A first plate member includes an outer face having a mounting rail projecting therefrom which is receivable in a slot in the first frame member and a bolt-receiving bore therethrough extending along a first axis at an acute angle to the outer face. A second plate member includes an outer face generally perpendicular to the outer face of the first plate member and having a mounting rail projecting therefrom which is receivable in a slot in a second frame member. The second plate member including a bolt-receiving bore therethrough extending along a second axis at an acute angle to the outer face of the second plate member. A central portion interconnects the first and second plate members and has a mounting surface and a bore extending therethrough. The mounting surface including an alignment rail projecting therefrom. A corner has a first sidewall configured to abut a terminal end of the first frame member, a second sidewall configured to abut a terminal end of the second frame member, and a mounting wall having a slot therein adapted for receiving the alignment rail of the central portion.

A mounting assembly for a photovoltaic (PV) module, and systems including such mounting assemblies, are described. In an example, the mounting assembly includes a top support and a bottom support having respective mounting walls, and holes through the mounting walls. A pin assembly may extend through the holes in the mounting walls to constrain the supports, for example, relative to a torque member of a solar-tracking PV system. The pin assembly may include end collars to engage and distribute loading from the torque member.

A connector has five or six abutment surfaces for cable ducts. The cable ducts may have substantially square end faces or rectangular end faces half as large. The connector has a main body made of metal, which exhibits one or two square abutment surfaces or portions thereof, and which exhibits four smaller substantially rectangular abutment surfaces.