Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Spacer-positioner; e.g. – rebar chair
Patent
1995-11-27
1997-09-09
Wood, Wynn E.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Spacer-positioner; e.g., rebar chair
52677, 52686, 52688, 52689, E04C 516
Patent
active
056643900
ABSTRACT:
A bolster for use in construction including a plurality of leg members arranged in parallel relationship and a beam integrally formed with the plurality of leg members and extending across the plurality of leg members. Each of the plurality of leg members has a foot for contacting an underlying surface. Each of the leg members includes a central body portion, a first leg extending downwardly from one side of the central body portion and a second leg extending downwardly from an opposite side of the central body portion. The foot is formed at an end of each of the first and second legs opposite the central body portion. The foot includes a plurality of pin-like projections extending outwardly from a bottom surface thereof. The beam has a waveform pattern formed across a top surface of the beam and a rectangular cross-section in a plane parallel to the plurality of leg members. The beam includes a male connector formed at one end and a female connector formed at an opposite end for receipt within a connector of an adjacent bolster.
REFERENCES:
patent: 3830032 (1974-08-01), Robb
patent: 4000591 (1977-01-01), Courtois
patent: 4942714 (1990-07-01), Langley, Jr. et al.
patent: 5555693 (1996-09-01), Sorkin
Conas Brochure, "Semifix--Beam Bolsters" and U-Fix--Slab Bolsters, circa 1993, p. 4.
Edwards W. Glenn
Wood Wynn E.
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