Back to results
US 5,653,078 AGranted
Variable embedment anchor and method
AssigneeERICO International Corporation
InventorsAntonius M. Kies, Hendrikus Cornelis van den Nieuwelaar
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeERICO International Corporation
InventorsAntonius M. Kies, Hendrikus Cornelis van den Nieuwelaar
Estimating the term…
In steel reinforced concrete structures, a hanging system uses an embeddment anchor with a head or washer positioned behind the second layer of reinforcing from the load being supported. An adjustable length tubular opening or shank extends from the head or washer to the form which forms the surface from which the load is to be supported. In the tubular embodiment, two sealed tube sections telescope with respect to each other for adjustment to the required distance and are held to the head or washer by a removable plastic threaded fastener. After the concrete is poured, the fastener is removed and a threaded stud such as a rod is threaded into the head or washer through the tube. The tube is then sealed. In another embodiment, an internally threaded sleeve is adjusted on a threaded shank to obtain the variable distance from the washer or head to the form.
In combination, a steel reinforced poured concrete structure having a surface and a layer of steel reinforcement having a side opposite said surface including an embedded in concrete anchor for supporting loads from said surface of the structure, said anchor including an anchor head positioned on said opposite side of said steel reinforcement layer, and adjustable support means extending from said anchor head through said layer of steel reinforcement to said surface for load accessing said anchor head when said structure is poured.
A method of installing a hanging system for a load in steel reinforced concrete structures having a surface formed by a form, and a first and second layer of steel reinforcing, comprising the steps of placing an anchor head behind at least the second layer of steel reinforcing and supporting the head adjustably from said form forming said surface from which said load is to be hung, and hanging a load from the said head after the concrete is poured and cured.
Dependencies are inferred from the claim text.