Lifting anchor assembly for precast concrete structures
AssigneeMidwest Concrete & Masonry Supply, Inc.
InventorMarinus Hansort
Life of this patent
Estimating the term…
Abstract
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.
Claims20
A lifting anchor assembly configured to be embedded in a tilt-up concrete structure, said lifting anchor assembly comprising:
- an anchor member having a central portion configured to engage a lift apparatus and a pair of legs that extend downward at an angle from the central portion;
- a plurality of spacers disposed at lower end portions of the pair of legs, wherein the plurality of spacers each include at least one spacing arm that extends downward from the anchor member;
- and
- wherein a distal portion of the at least one spacing arm is configured to rest on a lower surface of a concrete form to support the anchor member upright for being embedded within a thickness of a concrete structure cast in the concrete form.
A lifting anchor assembly configured to be embedded in a tilt-up concrete structure, said lifting anchor assembly comprising:
- an anchor member having a pair of legs that extend downward from a central portion of the anchor member to form an inverted U shape;
- a spacer disposed at a lower end portion of each of the pair of legs, wherein 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;
- and
- wherein the engagement portion of the spacer is configured to engage the anchor member in different rotational orientations to correspondingly position a selected one of the plurality of spacing arms in a downward position for accommodating concrete structures with different thicknesses.
A method of adjusting a lifting anchor assembly configured to be embedded in a concrete structure, said method comprising:
- providing an anchor member having a central portion for engaging a lift apparatus, a pair of legs that extend downward from the central portion, and a pair of cross bars attached at lower end portions of the pair of legs;
- providing spacers that each include a plurality of spacing arms extending radially at different lengths from an engagement portion of the spacer;
- and
- selecting a rotational position of the spacers for the engagement portion of the spacers to engage the pair of cross bars and position a selected one of the plurality of spacing arms in a downward position that is configured to position the anchor member at a desired vertical position in a concrete form.
Dependencies are inferred from the claim text.