Stair brackets and stair structure

Details Stair brackets and stair structure Stair brackets and stair structure

1986-07-28

1987-12-01

Murtagh, John E.

Static structures (e.g., buildings)

Stepped; e.g., stair

Risers connected to common stringer

182 93, 182220, 52182, E04F 1100

Patent

active

047095202

ABSTRACT:
Stair brackets are provided for mounting on stringers and supporting treads in stair structures extending between upper and lower floors. Lower brackets interconnect the lower floor, lower ends of the stringers and the lowermost tread. Angle brackets are mounted on the stringer between the lower bracket and the upper floor. Hangers secure the stringer upper ends to the upper floor.

REFERENCES:
patent: 2724466 (1955-11-01), Phillips
patent: 2879556 (1959-03-01), Lyons
patent: 2936863 (1960-05-01), Holzer
patent: 3021928 (1962-02-01), Blair
patent: 3289367 (1966-12-01), MacIntosh
patent: 3331579 (1967-07-01), Petersen
patent: 3556251 (1971-01-01), Whitehead
patent: 3888058 (1975-06-01), Ahrens
patent: 4015687 (1977-04-01), Dean
patent: 4034525 (1977-07-01), Yokomori
patent: 4464870 (1984-08-01), Crepeau
patent: 4593503 (1986-06-01), Koslowski

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