Metal channel apparatus and method for forming a stairway

Details Metal channel apparatus and method for forming a stairway Metal channel apparatus and method for forming a stairway

1985-08-26

1987-01-13

Machado, Reinaldo P.

Static structures (e.g., buildings)

Stepped; e.g., stair

Tread unit on horizontal tread member connected to riser

182 93, 182220, E04G 1306, E04F 1112

Patent

active

046354166

ABSTRACT:
A series of highly economical metal channels each having a first and second side members extending vertically downward from a third horizontal member for accommodating thereto a step and a riser for rapidly, yet sturdily forming a stairway is disclosed. A plurality of quickly-installed attaching means for integrally coupling together a combination of a generally rectangular beam, metal channel, step and riser are used at various areas of said stairway in order to avoid thereto the time-consuming and expensive manner of providing a sawtooth-type stairway beam.

REFERENCES:
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patent: 3196997 (1965-07-01), Hager
patent: 3216160 (1965-11-01), Best
patent: 3667572 (1972-06-01), Anderson
patent: 4015687 (1977-04-01), Dean
patent: 4422270 (1983-12-01), Lapointe
patent: 4464870 (1984-08-01), Crepeau

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