Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Fabric or lattice; e.g. – indeterminate grating
Patent
1981-04-03
1984-07-31
Friedman, Carl D.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Fabric or lattice; e.g., indeterminate grating
52484, E04C 242
Patent
active
044621981
ABSTRACT:
A suspended ceiling system for supporting ceiling panels and the like includes a plurality of main runners, connected in end-to-end relationship to form parallel beams, and a plurality of cross runners interconnecting the parallel beams to form a grid.
Each main runner includes an end connector, having an opposed pair of laterally projecting hooks which form a guideway for receipt of the forward end of a corresponding main runner end connector. The face of each end connector is continuous, from one side of the hooks to the other, to provide a bearing surface for sliding the end connectors through their respective guideways. Respective apertures and detents are formed in each end connector to provide opposed engaging surfaces for interlocking the end connectors in side-by-side relationship.
The cross runners include respective end connectors which interlockingly engage when inserted from opposite directions through a slot in the web of the main runner. In a first embodiment, respective apertures, formed in the tongue of each end connector, engage respective detents or dimples projecting laterally from the side of each end connector. In a second embodiment, respective T-shaped tongues engage respective lateral projections formed in the side of each end connector.
A flange, projecting laterally from each cross runner end connector, bears against the main runner support flange to support the cross runners on the main runners, with the cross and main runner support flanges abutting, and their respective support surfaces lying in a common plane throughout their length.
REFERENCES:
patent: 3374596 (1968-03-01), O'Brien et al.
patent: 3501185 (1970-03-01), Brown et al.
patent: 3846031 (1974-11-01), Adams
patent: 4021986 (1977-05-01), McCall et al.
Ceiling Dynamics, Inc.
Chovanes Eugene
Friedman Carl D.
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