Fire expansion joint for ceiling runner

Details Fire expansion joint for ceiling runner Fire expansion joint for ceiling runner

1988-05-02

1990-01-16

Murtagh, John E.

Static structures (e.g., buildings)

Irreversibly reactive component

52484, 52573, 52729, 52DIG5, E04C 242, E04B 550

Patent

active

048934445

ABSTRACT:
The expansion joint for the runner is formed with two cut-out areas and cuts in the vertical web to permit the horizontal web, enlarged bulb and remaining web by the cut-out areas to bend outward to absorb expansion of the runner when subjected to fire.

REFERENCES:
patent: 3175655 (1965-03-01), Brown
patent: 3388519 (1968-06-01), Downing
patent: 3589089 (1971-06-01), Kedel
patent: 3807111 (1974-04-01), Brady
patent: 3846031 (1974-11-01), Adams
patent: 4016701 (1977-04-01), Beynon
patent: 4601153 (1986-07-01), Dunn
patent: 4606166 (1986-08-01), Platt
patent: 4685262 (1987-08-01), Meredith
patent: 4785895 (1988-11-01), Dunn

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