Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Fabric or lattice; e.g. – indeterminate grating
Patent
1982-11-01
1984-01-24
Perham, Alfred C.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Fabric or lattice; e.g., indeterminate grating
52484, 52668, 52772, 52781, E04C 242, E04B 552, E04B 160, E04B 266
Patent
active
044268220
ABSTRACT:
In a ceiling assembly, a parallel array of horizontally elongated panels each having vertical major surfaces and a horizontal top flange and a plurality of spaced parallel horizontally elongated stringers extending above and transversely of the panels for supporting the panels, the stringers having horizontal flanges formed with slots in which the top edge portions of the panels are received. The slots are shaped to provide, in the stringer flanges, pairs of facing spring tabs to facilitate insertion of the top portions of the panels in the slots and to interlock with the panel top flanges.
REFERENCES:
patent: 2967337 (1961-01-01), Hedrick
patent: 3044586 (1962-07-01), Cassels
patent: 3182773 (1965-05-01), Laaksonen
patent: 3265420 (1966-08-01), Goodrich et al.
patent: 3321882 (1967-05-01), Stahlhut
patent: 3742671 (1973-07-01), Ellis
patent: 3755988 (1973-09-01), van der Sluys
patent: 3911638 (1975-10-01), Englund et al.
patent: 3969870 (1976-07-01), Deaton
patent: 4364215 (1982-12-01), Gailey
Alcan Aluminum Corporation
Perham Alfred C.
Washington Eugene R.
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