A concrete anchor assembly includes an anchor body including a rod portion and a head portion; the head portion extending laterally from said rod portion, the head portion including a threaded bore; and the rod portion including an internally threaded bore, the rod portion including an outside thread.

A concrete dowel placement system and methods for making the same. The system allows for accurate and easy substantially-parallel or parallel placement of slip dowels within sections of concrete so that adjacent sections of concrete may be allowed to undergo thermal expansion and contraction while remaining in a common plane without cracking or faulting. The system includes a coupler and a sheath. The sheath is configured to be slidably extensible over the coupler and may be held to the coupler by friction. An outer surface of the sheath may be textured. Additionally, a method of constructing the concrete dowel placement system includes extruding material to form two tubes of different sizes. The tubes are then attached to each other, then material is extruded or injection molded to form a sheath. Alternatively, construction may include extruding material to form a tube, then removing some of the material from the tube in order to form a coupler.

A concrete dowel placement system and methods for making the same. The system allows for accurate and easy substantially-parallel or parallel placement of slip dowels within sections of concrete so that adjacent sections of concrete may be allowed to undergo thermal expansion and contraction while remaining in a common plane without cracking or faulting. The system includes a coupler and a sheath. The sheath is configured to be slidably extensible over the coupler and may be held to the coupler by friction. An outer surface of the sheath may be textured. Additionally, a method of constructing the concrete dowel placement system includes extruding material to form two tubes of different sizes. The tubes are then attached to each other, then material is extruded or injection molded to form a sheath. Alternatively, construction may include extruding material to form a tube, then removing some of the material from the tube in order to form a coupler.

An anchor comprises a conduit for receiving a flexible elongate member therethrough. The conduit has an internal region and first and second openings. The flexible elongate member can extend through the first and second openings and through the internal region of the conduit. The conduit is a curved, substantially U-shaped elongate tubular member.

An anchor comprises a conduit for receiving a flexible elongate member therethrough. The conduit has an internal region and first and second openings. The flexible elongate member can extend through the first and second openings and through the internal region of the conduit. The conduit is a curved, substantially U-shaped elongate tubular member.

An anchor for arrangement in a building element, in particular in a wall, in a ceiling or in a precast concrete part. The anchor includes an anchoring element for anchoring in a receiving opening of the building element comprising an undercut, a connecting element for connection to a supporting element, in particular to a platform for formwork, or to a support arm for a protective shield, or to a lifting element for lifting the building element. In some aspects, the anchoring element is movable between an anchoring position for anchoring in the receiving opening and a release position for removal from the building element. The anchor may additionally include a securing element which blocks the movement of the anchoring element between the anchoring position and the release position in a first position and releases the anchoring element in a second position.

An anchor for being embedded in concrete for attachment to a fastener to support a load comprises a plug having a main body portion extending upwardly from a base portion, the plug for being attached to a form board prior to pouring of concrete, the plug having an end portion disposed a distance from the form board; and an anchor body attached to the end portion. The plug is separable from the anchor body and removable from the concrete after the concrete is cured, leaving the anchor body embedded in the concrete, the plug providing a void in the concrete after removal to provide an access opening for a threaded portion of a fastener to attach to the anchor body.

A device for forming a void in cured concrete, the device including a circular base with at least one hole through the base, an elongate rod coupled to the base, and a sleeve with a longitudinal axial bore extending from a first end of the sleeve to and through a second end of the sleeve, the axial bore sized and shaped to receive the elongate rod in slidable engagement within the axial bore and a length of the sleeve being greater than or equal to a length of the elongate rod. The base is coupled to concrete formwork and concrete is poured over the sleeve and the elongate rod and allowed to cure. The rod is removed from the sleeve and the sleeve is removed from the cured concrete to form the void in the cured concrete.

A device for forming a void in cured concrete, the device including a circular base with at least one hole through the base, an elongate rod coupled to the base, and a sleeve with a longitudinal axial bore extending from a first end of the sleeve to and through a second end of the sleeve, the axial bore sized and shaped to receive the elongate rod in slidable engagement within the axial bore and a length of the sleeve being greater than or equal to a length of the elongate rod. The base is coupled to concrete formwork and concrete is poured over the sleeve and the elongate rod and allowed to cure. The rod is removed from the sleeve and the sleeve is removed from the cured concrete to form the void in the cured concrete.

A lifting anchor assembly that is configured to be embedded in a tilt-up concrete structure includes an anchor member that has a pair of legs extending downward from a central portion of the anchor member to form a generally inverted U shape. A spacer is disposed at a lower end portion of each of the pair of legs, where the spacers each include a plurality of spacing arms that extend radially at different lengths from an engagement portion of the spacer that adjustably attaches at the anchor member. The engagement portion of the spacer is configured to engage the anchor member in different rotational positions to selectively position one of the plurality of spacing arms in a downward position for accommodating different thickness dimensions of concrete structures.