Stair unit structure

Details Stair unit structure Stair unit structure

1986-05-06

1987-11-17

Friedman, Carl D.

Static structures (e.g., buildings)

Stepped; e.g., stair

52190, E04F 1100

Patent

active

047064250

ABSTRACT:
A stair unit structure (10) having at least one stair (12) with a riser (14) and a tread (16) fabricated from rigid material such as fiberglass. A reinforcement member (24) is substantially coextensive with the width of the stair unit structure and is secured thereto by a suitable adhesive or the like. Preferably, a flange member (16) is provided proximate the lowermost riser to facilitate securing the structure (10) to the supporting structure. Further, a turn-down member (20) may be provided proximate the rearward edge of the upper most tread to provide added strength.

REFERENCES:
patent: 615634 (1898-12-01), Pease
patent: 2697931 (1954-12-01), Schill
patent: 3405486 (1968-10-01), Fagenstrom
patent: 4599835 (1986-07-01), Rinke

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