Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Spacer-positioner; e.g. – rebar chair
Patent
1997-02-21
1998-10-13
Friedman, Carl D.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Spacer-positioner; e.g., rebar chair
40610, 52684, 52689, 248174, 404136, E04C 516
Patent
active
058194932
ABSTRACT:
A new Height Adjustable Rebar Support System for supporting rebar at various elevations during pouring and curing of concrete with a single adjustable support member. The inventive device includes a first panel having a first lower slot, a second panel pivotally attached to the first panel having a second lower slot, an aperture and a notch into the first panel near the first lower slot, and a beaded cord secured to the second panel. The end of the beaded cord opposite of the second panel selectively engages the first panel through the aperture thereby adjusting the separation of the first panel with respect to the second panel opposite of the pivoting point. The beaded cord comprises a plurality of color coded beads for indicating the exact height selected with a selected color of bead juxtaposed to the first panel within the aperture.
REFERENCES:
patent: 1058908 (1913-04-01), Schoenthaler
patent: 1115021 (1914-10-01), Pummill
patent: 1495659 (1924-05-01), Williamson
patent: 4253260 (1981-03-01), Maza et al.
patent: 4953340 (1990-09-01), Anderson
patent: 5358762 (1994-10-01), McGrath
Friedman Carl D.
Wilkens Kevin D.
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