Cage spacer

Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Spacer-positioner; e.g. – rebar chair

Reexamination Certificate

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Details

C052S684000, C052S687000

Reexamination Certificate

active

06910309

ABSTRACT:
A cage spacer for spacing reinforcing rods or welded fabric a specified distance from mold walls for poring concrete during construction projects. The cage spacer comprises two intersection bodies oriented perpendicular to each other and preferable with one body having a base higher than the other. A pair of pads on opposite ends of a first body base for stabilizing the body on the rebar. A pair of rebar engaging clips on opposite ends of the second body base for snapping onto and gripping a perpendicularly intersecting rebar such that the rebar is held securely in the clips. The cage spacer attaches over the intersection of a pair of rebars. At least one apex of the bodies engages a mold wall to keep the mold wall a specified distance from the rebars while concrete is being poured in the mold.

REFERENCES:
patent: 1353969 (1920-09-01), Mariner
patent: 3660873 (1972-05-01), Kawashima
patent: 3673753 (1972-07-01), Anderson
patent: 3788025 (1974-01-01), Holmes
patent: 4589794 (1986-05-01), Sugiura et al.
patent: 4655424 (1987-04-01), Oshida
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patent: 5203054 (1993-04-01), Arnold
patent: 5517731 (1996-05-01), Spykerman
patent: 6276108 (2001-08-01), Padrun
patent: 6282860 (2001-09-01), Ramirez
patent: 6354054 (2002-03-01), Verelli et al.
patent: 6684594 (2004-02-01), Sorkin
Strike Tool, Strike Products, Why Plastic Over Metal, Aug. 1, 2002, www.striketool.com/pyramid.html (3pp.).

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