Concrete coupling assembly comprises a base holder for being attached to a concrete forming surface, the base holder including a central opening; a coupler having one end disposed within the central opening, the coupler having an axis for being positioned substantially transverse to the forming surface, the coupler having first and second threaded bores through the one end for attachment of a threaded rod; and a separate anchor body threadedly attached to another end of the coupler.

A fastening rail for embedding into a concrete element has one rail back, two rail lips and two rail longitudinal sides disposed opposite one another. The rail lips delimit a slot between them. The fastening rail is realized in an anchorless manner and forms at least one undercut from the rail back in the direction of the outside of the rail lips. To improve anchoring in concrete, the rail back has profiling on its outside which is remote from the rail lips. The fastening rail is advantageously embedded into a concrete element such that the outside of the rail lips lies flush with the surface of the concrete element. A method for making a fastening rail includes producing a profiling in at least one central region of a top side of a metal plate and reshaping the metal plate to form the rail back, rail longitudinal sides and rail lips.

An improved anchor for provision within a concrete panel or other structural member is provided. The anchor is operable to connect a wall panel or similar concrete to a footer member or other structural component. The anchor assembly comprises a void and a removable portion that allows for a portion of the anchor assembly to be pivoted from a first position to a second position, wherein the first position comprises a stowed position within the wall and the second position comprises a position operable to securing or connecting structural members.

The present invention provides a foundation connection device disposed within a concrete structure, securing the concrete structure to a foundation when a bolt engages the foundation connection device and is driven into the foundation. The device includes a tubular post defining a cavity. A base plate has upper and lower surfaces, an aperture through the surfaces, and the lower surface aligns with a bottom surface of the concrete structure. A stop plate defining a circular through-hole is within the tubular post and receives the bolt. The bolt has a bolt head and a bolt shaft, and when the bolt engages the foundation connection device and is driven into the foundation, the bolt head engages the stop plate and the bolt shaft extends through the circular through-hole of the stop plate within the cavity of the tubular post, and through the aperture of the base plate into the foundation.

An anchor bolt assembly and arrangement for anchoring structure or equipment of an air separation plant to a reinforced concrete foundation is provided. The anchor bolt assembly includes one, two or more anchor bolts, each anchor bolt having a first end configured to be embedded in the concrete foundation and a threaded second end configured to be projecting from the foundation. The anchor bolt assembly further comprises a steel plate affixed to the first end of the anchor bolt(s) and extends in an orthogonal orientation to the length of the anchor bolts. The size of the steel plate is selected such that a perimeter of the steel plate is between about 0.25 and 4.0 times the embedment depth of the anchor bolt body which provides additional pull-out strength of the anchor bolt assembly. Preferably, the steel plate is disposed below to the bottom longitudinal reinforcement within the concrete foundation.

A concrete anchor assembly includes a housing including a lower opening and a side wall; a flange portion extending from the housing; a ramp surface extending upwardly around the lower opening; a split body disposed over the lower opening, the split body including a bottom surface engaging the ramp surface, the split body including a threaded opening. The housing includes a gap between the split body and the side wall. A compressed spring forces the split body toward a bottom of the ramp surface.

Concrete coupling assembly comprises a base holder for being attached to a concrete forming surface, the base holder including a central opening; a coupler having one end disposed within the central opening, the coupler having an axis for being positioned substantially transverse to the forming surface, the coupler having first and second threaded bores through the one end for attachment of a threaded rod; and a separate anchor body threadedly attached to another end of the coupler.

A concrete anchor assembly includes a housing having a top opening; the housing including a bottom wall with a bottom opening; the bottom wall including a ramp surface extending upwardly and away from the bottom opening; a split nut disposed on the bottom wall and over the bottom opening; and a spring biased to force the split nut toward a bottom of the ramp surface.

An improved anchor for provision within a concrete panel or other structural member is provided. The anchor is operable to connect a wall panel or similar concrete to a footer member or other structural component. The anchor assembly comprises a void and a removable portion that allows for a portion of the anchor assembly to be pivoted from a first position to a second position, wherein the first position comprises a stowed position within the wall and the second position comprises a position operable to securing or connecting structural members.

A fastening rail for embedding into a concrete element has one rail back, two rail lips and two rail longitudinal sides disposed opposite one another. The rail lips delimit a slot between them. The fastening rail is realized in an anchorless manner and forms at least one undercut from the rail back in the direction of the outside of the rail lips. To improve anchoring in the concrete, the rail back has profiling on its outside which is remote from the rail lips. The fastening rail is advantageously embedded into a concrete element such that the outside of the rail lips lies flush with the surface of the concrete element. A method for making a fastening rail provides that a profiling is produced in at least top one center region a metal plate and the metal plate is re-shaped to form the rail back, rail longitudinal sides and rail lips.