Precast concrete recess insert
OwnerSidney E. Francies, IIIinventor
Life of this patent
Estimating the term…
Abstract
A Portland cement concrete recess insert is characterized by a quadrant shape, an obverse wall, a contact wall, and a convex wall. The obverse wall is coupled orthogonally with the contact wall along a contact line, and extends laterally of the convex wall to define a perimetric flange. The convex wall is coupled with the obverse wall and the contact wall radially opposite the contact line. A pair of recess inserts is connectable along the contact walls to define a semicircular convex wall. A bilaterally symmetrical open channel traverses the contact wall and intercepts the convex wall at two locations. The pair of recess inserts is mutually joinable along the contact walls to juxtapose the open channels and define a closed channel to enclose a portion of a lift anchor.
Claims23
A recess insert for pre-cast Portland cement concrete shapes, the recess insert comprising:
- a one-piece quadrant-shaped body characterized by a longitudinal plane of symmetry, the quadrant-shaped body including a planar obverse wall characterized by an obverse plane, a planar contact wall characterized by a contact plane, and a convex curved wall, the walls collectively joined so that the longitudinal plane of symmetry bisects each of the planar obverse wall, planar contact wall, and convex curved wall;
- a perimetric flange integral with the quadrant-shaped body and coplanar with the obverse wall, beginning at the contact wall and transitioning to a triangular projection bisected by the longitudinal plane of symmetry, the perimetric flange characterized by a width adjacent the contact wall, and a depth of the triangular projection along the longitudinal plane of symmetry, the depth being greater than the width;
- the contact plane and obverse plane intersecting orthogonally along a contact line disposed orthogonal to the longitudinal plane of symmetry;
- the convex curved wall coupled with the planar obverse wall and the planar contact wall radially opposite the contact line;
- wherein a bilaterally symmetrical open channel traverses the planar contact wall and intercepts the convex curved wall at two locations for holding a lifting anchor;
- wherein a pair of quadrant-shaped bodies are mutually joinable along the planar contact walls to form the recess insert, define a closed channel to enclose a portion of a lift anchor, and define a 180° semicircular convex curved wall;
- and
- wherein the perimetric flange is supportable upon a concrete surface, whereupon each quadrant-shaped body is individually removable from cured concrete by lifting the triangular projection away from a cured concrete surface.
A lifting assembly for pre-cast Portland cement concrete shapes, the lifting assembly comprising:
- a recess insert characterized by a longitudinal plane of symmetry, comprising a coupleable pair of one-piece quadrant-shaped bodies, each body including a planar obverse wall characterized by an obverse plane, a planar contact wall characterized by a contact plane, and a convex curved wall, the walls collectively joined so that the longitudinal plane of symmetry bisects each of the planar obverse walls, planar contact walls, and convex curved walls;
- and
- a Portland cement concrete lifting anchor characterized by a pair of angularly disposed anchor legs joined at an angular bend;
- a perimetric flange integral with a quadrant-shaped body and coplanar with the obverse wall, beginning at the contact wall and transitioning to a triangular projection bisected by the longitudinal plane of symmetry, the perimetric flange characterized by a width adjacent the contact wall, and a depth of the triangular projection along the longitudinal plane of symmetry, the depth being greater than the width;
- the contact plane and obverse plane intersecting orthogonally along a contact line disposed orthogonal to the longitudinal plane of symmetry;
- and
- the convex curved wall coupleable with the planar obverse wall and the planar contact wall radially opposite the contact line;
- wherein a bilaterally symmetrical open channel traverses the planar contact wall and intercepts the convex curved wall at two locations for holding a lifting anchor;
- and
- wherein the pair of quadrant-shaped bodies are mutually joinable along the contact walls to define a 180° semicircular convex wall, juxtapose the open channels, and define a closed channel for enclosing a portion of the lift anchor;
- and
- wherein the perimetric flange is supportable upon a concrete surface, whereupon the recess insert is removable from cured concrete by lifting the triangular projection of each quadrant-shaped body away from a cured concrete surface.
Dependencies are inferred from the claim text.