Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Spacer-positioner; e.g. – rebar chair
Patent
1990-04-06
1991-05-14
Chilcot, Jr., Richard E.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Spacer-positioner; e.g., rebar chair
52686, 52687, E04C 516
Patent
active
050144855
ABSTRACT:
A chair used for supporting concrete reinforcement rods provides different supporting levels by a change in position thereof, and includes top and bottom planar transverse frame members spaced by two pairs of connecting rods, a pair of first leg members extending from the top frame member, and a pair of second leg members extending from the bottom frame member. Reinforcement transverse members are provided between leg members and connecting rods and are connected to the top and bottom frame members, respectively, thereby improving the strength of the chair.
REFERENCES:
patent: 4060954 (1977-12-01), Liuzza
patent: 4928472 (1990-05-01), Chang
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