Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Spacer-positioner; e.g. – rebar chair
Patent
1990-04-30
1993-01-26
Chilcot, Jr., Richard E.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Spacer-positioner; e.g., rebar chair
52719, E04C 516
Patent
active
051813637
ABSTRACT:
A spacer is provided for locating a reinforcing cage or fabric, with respect to a form, when manufacturing reinforced concrete articles such as piping, manhole sections, walls and the like. The spacer is formed from a single length of heavy gauge steel wire, and includes a mounting section which wraps around a longitudinal rod of the reinforcing framework and abuts a transverse rod at its junction with the longitudinal rod. An intermediate section of the spacer extends transversely from the mounting section and is approximately parallel to the transverse rod. A hook at the end of the intermediate section remote from the mounting section is positioned to latchingly engage the transverse rod responsive to elastic deformation of the spacer, thereby to securely maintain the spacer on the reinforcement framework. A spacing loop of a predetermined dimension is provided along the intermediate section.
REFERENCES:
patent: 1025330 (1912-05-01), Straus, Jr.
patent: 1213919 (1917-01-01), Symons
patent: 1263887 (1918-04-01), Hamilton
patent: 3440792 (1969-04-01), Schmidgall
patent: 4835934 (1989-06-01), Swenson
patent: 4939883 (1990-07-01), Swenson
patent: 4999965 (1991-03-01), Schmidgall et al.
Kaines John L.
Leach, deceased Christopher B.
Cam Sales, Inc.
Chilcot Jr. Richard E.
Downs Joanne C.
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