Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Fabric or lattice; e.g. – indeterminate grating
Patent
1976-03-30
1977-06-07
Bell, J. Karl
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Fabric or lattice; e.g., indeterminate grating
52177, E04C 242
Patent
active
040274519
ABSTRACT:
A grating having a plurality of grating strips in rigid spaced relationship. The upper and lower edges of each strip are relieved to define spaced recesses. Recesses in the lower edges are deeper than those in the upper edges and adjacent strips are longitudinally staggered to cause misalignment of the lower recesses.
REFERENCES:
patent: 1134032 (1915-03-01), Clarke
patent: 1180953 (1916-04-01), Steckenreiter
patent: 2384303 (1945-09-01), Heath
patent: 2645985 (1953-07-01), Beebe et al.
patent: 2668484 (1954-02-01), Bustin
"Bustin Steel Products," Catalog, Nov. 1967, p. 51.
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