A checker nut for locking a threaded body to a threaded rod includes a main body portion having a bearing surface for engaging a threaded body; the main body portion including a central opening with an inside surface; and a single female thread disposed on the inside surface and extending therefrom, the female thread for cooperating with threads on a threaded rod.

A disclosed rebar coupler includes a first coupling member, a second coupling member, and a coupling means. Accordingly, the connection angle between the first coupling member and the second coupling member is variable to a desired angle. The connection angle between rebars to be connected may be rapidly and conveniently varied at an industrial site to which the rebars are applied.

An element for thermal insulation between two building parts, particularly between a building (A) and a protruding exterior part (B), comprising an insulating body (2) to be arranged between the two building parts and reinforcement elements in the form of at least tensile elements (3), extending in an installed state of the element (10) essentially horizontally and perpendicular to an essentially horizontal extension of the insulating body through said body, and respectively projecting in the horizontal direction from the insulating body and here allowing a connection to one of the two building parts preferably made from concrete. Here the tensile reinforcement elements (3) are formed as multi-part composite elements such that at least in the proximity of the insulating body (2) they have a central rod section (3a) made from fiber-reinforced synthetic material and have a separate anchoring rod section (3b) in an area outside the insulating body (2) with geometric and/or material characteristics at least partially deviating from the central rod section (3a), with the anchoring rod section (3b) and the central rod section being arranged at least essentially aligned to each other and at least indirectly fixed to each other, and with the anchoring rod section (3b) cooperating with an interior anchoring element for fixing at the central rod section (3a), which interior anchoring element engages a radially interior area of the central rod section. The central rod section (3a) comprises on its radial exterior an annular radial support element and/or a radial support area (3ab) with fibers (3f) extending at least partially in the circumferential direction of the central rod section (3a), with the interior anchoring section (3v) and the radial support area (3ab) at least partially overlapping each other.

A clipping apparatus for holding rebar is disclosed. The clipping apparatus includes having a first base portion and a second base portion. Extensions and clips are positioned in the base portions to hold one or more rebar rods or wires in a stable orientation. Platforms are positioned to give a user a plane upon which to apply an engaging force to clip the rebar into the clipping apparatus. A chair arrangement is positioned to provide spacing between adjacent planes of rebar. A fluid-stop section is positioned about the first base portion and the second base portion. The fluid-stop section also includes a raised rim. Together with the base, platforms, and chair, the fluid-stop section to help prevent flow of liquid through the clipping apparatus.

A reinforcement arrangement and a method for producing a construction material body using the reinforcement arrangement. The reinforcement arrangement comprises a reinforcement body and at least one holding anchor unit. Each holding anchor unit is arranged or attached at the reinforcement body by a foot section. A holding section adjoining the foot section is moveable between a storage position and a function position. In the storage position, the holding section extends directly adjacent along the reinforcement body and abuts the reinforcement body at one or more locations. In the function position, a free end of the holding section opposite the foot section is larger than in the storage position. The holding section can be moved manually or self-acting from the storage position into the function position. The reinforcement body, the holding section, and the foot section are preferably embodied as textile-reinforced elements.

A device (150) for splicing together a first reinforcement cage (10) and a second reinforcement cage (20), the first reinforcement cage (10) comprising a suspension band (18) adjacent one of its ends and the second reinforcement cage (20) carrying the said device (150) adjacent one of its ends, wherein the device (150) comprises: an anchoring portion (160) carried on a portion of the second reinforcement cage (20) adjacent its one end, e.g. via a bridging portion (170), and configured or configurable such that at least a portion thereof is radially spaced from the second reinforcement cage (20) so as to define a radial suspension gap (G) between the said portion and the second reinforcement cage (20), the suspension gap (G) being configured for receiving therein the suspension band (18) on the first reinforcement cage (10) as the first and second reinforcement cages (10, 20) are spliced together; and gate means (180) constructed and arranged so as to be selectively configurable in either an open configuration, in which the suspension band (18) on the first reinforcement cage (10) can be inserted into or received in the suspension gap (G) via the gate means (180), or a closed configuration in which the suspension band (18) on the first reinforcement cage (10), once located in the suspension gap (G), is prevented from being removed therefrom via the gate means (180), wherein the gate means (180) is moveable between its open and closed configurations by virtue of at least a portion thereof being moveable by pivoting.

A rebar positioning device with opposite ends for positioning adjacent to a form face of at least one form panel may include a support rod having opposite ends and an outer surface, with at least a portion of the outer surface being threaded. At least one bar clip may be movably mounted on the support rod. An orientation of the at least one bar clip on the support rod is adjustable, and a position of the at least one bar clip on the support rod is adjustable.

A rebar chair having rebar seats in the top, bottom, left side, right side, first end, and second end. The rebar chair has a first distance between the sides, a second distance between the top and bottom, and a third distance between the ends. The rebar seat in the top has a first height, the rebar seat in the left side has a second height, and the rebar seat in the first end has a third height so that the rebar chair can provide at least three different support heights depending on the orientation. The bottom rebar seat may have the first height, the right side rebar seat may have the second height, and the second end rebar seat may have the third height. Each side includes at least one an engagement feature that enables the rebar chair to be stacked with and/or connected to an adjacent rebar chair.

A rebar holster system includes a vertical holster having an upper portion, a lower portion, and a middle portion. The upper portion includes an opening, the opening of the upper portion having a greater diameter than the vertical reinforcing bar such that the upper portion is dimensioned and configured for loosely receiving a leading end of the vertical reinforcing bar. The lower portion includes a securing means for securing the leading end of the vertical reinforcing bar to the vertical holster. The middle portion is disposed between the upper portion and the lower portion for guiding the leading end of the vertical reinforcing bar from the opening of the upper portion to the securing means of the lower portion.

A double winding reinforcement method has a main bars erecting step, a reinforcement stirrup winding step, and a reinforcement bar double ends winding step. In the main bars erecting step, multiple main bars are vertically disposed and are arranged in a rectangular shape. In the reinforcement stirrup winding step, a reinforcement stirrup is horizontally wound around the multiple main bars and is wound in a rectangular shape, and the main bars are defined as multiple pairs of opposite main bars. In the reinforcement bar double ends winding step, each reinforcement bar has a first end and a second end. The first end of each reinforcement bar is fixed with one of the main bars of a respective one of the pairs of opposite main bars. The second end is wound around the reinforcement stirrup and the other main bar of the pair of opposite main bars.