Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Curvilinear or peaked truss
Patent
1976-04-02
1977-10-18
Ridgill, Jr., James L.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Curvilinear or peaked truss
52641, 52694, 52645, E04H 1218, E04B 1343
Patent
active
040540138
ABSTRACT:
A metal beam system for metal-concrete structure comprises one or two sinusoidal steel wires welded to a plate along one edge of the sinusoid and welded to two round steel bar stringers along the other edge. The round steel bar stringers are along the upper part of the sinusoid for principal and floor beams and along the lower part for the perimetrical beams.
REFERENCES:
patent: 1233743 (1917-07-01), Arndt
patent: 1762112 (1930-06-01), White
patent: 1776467 (1930-09-01), Frandsen
patent: 1865059 (1932-06-01), Ragsdale
patent: 1964208 (1934-06-01), Leland
patent: 3456415 (1969-07-01), Shaffer
patent: 3691712 (1972-09-01), Bowling et al.
Borneto Giuseppe
Pitto Ernesto
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