Composite ceiling grid

Details Composite ceiling grid Composite ceiling grid

1992-08-21

1994-07-05

Friedman, Carl D.

Static structures (e.g., buildings)

With synthetic resinous component

With nonresinous component

5230916, 52729, 527321, 527317, 5250607, F04B 906

Patent

active

053256476

ABSTRACT:
The present invention relates to ceiling grid runners and associated assembly details that utilize metal reinforcement of thermoplastic compounds in order to obtain the necessary stiffness required to meet load/deflection standards for suspended ceiling systems. The metal is strategically positioned at the areas of highest stress, the top and bottom of the runner cross-section in what is analogous to the bulb and flange of traditional all metal grid.

REFERENCES:
patent: 866940 (1907-09-01), Lipman
patent: 3246432 (1966-04-01), Young, Jr.
patent: 3355206 (1967-11-01), Valsvik
patent: 3487518 (1970-01-01), Hopfeld
patent: 4206578 (1980-06-01), Mieyal
patent: 4932186 (1990-06-01), John

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