Bar support for concrete

Details Bar support for concrete Bar support for concrete

1989-06-16

1990-09-04

Chilcot, Jr., Richard E.

Static structures (e.g., buildings)

Openwork; e.g., truss, trellis, grille, screen, frame, or...

Spacer-positioner; e.g., rebar chair

52687, 404136, E04C 507

Patent

active

049533401

ABSTRACT:
The rod-support chair of the present invention comprises a plastic channel made of a thermoplastic resin preferably selected from the group consisting of polycarbonate, aromatic polyester carbonate and aromatic polyesters. The channel is further characterized in that its physical dimensions and material properties permit its elastic and bending across its long dimension around at least part of the circumferential cross-section of a reinforcing rod and provide support for the rod for a period which is necessary for the concrete to set. The channel in its "in use" configuration is left in the cured, or set concrete and does not interfere with the setting process nor does it contribute to rust formation.

REFERENCES:
patent: 1512906 (1924-10-01), Burrell
patent: 1651946 (1927-12-01), Burrell
patent: 1882499 (1932-10-01), Johns
patent: 2902742 (1959-09-01), Matich
patent: 3114221 (1963-12-01), Eriksson

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