Interlocking cross tee

Details Interlocking cross tee Interlocking cross tee

1987-09-08

1989-05-09

Scherbel, David A.

Static structures (e.g., buildings)

Frangible section or means

52232, 52667, 52484, F16B 722, E04C 242

Patent

active

048276812

ABSTRACT:
A fire-resistant suspended ceiling grid structure having cross tees and main beams, to support ceiling tiles. The structure has shear means to permit a cross tee to expand into a main beam during a fire. The shear means have a notch behind a transverse tab formed in the cross tee which acts as a stop against the main beam in normal conditions, and shears or bends during a fire to permit the cross tee to expand into the main beam and still hold the tile in place.

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patent: 4648230 (1987-03-01), Mieyal et al.
patent: 4685262 (1987-08-01), Meredith, Jr.

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