Portable folding staging

Details Portable folding staging Portable folding staging

1989-01-23

1990-04-17

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Unitary foldable, rigid scaffold or ladder

182178, 52 7, E04G 134, E04H 310

Patent

active

049172174

ABSTRACT:
A stage panel support assembly including four corner stanchions or posts permanently cross braced in one transverse direction and connected in a longitudinal direction by double jointed arms centrally pivoted at an apex on a base frame upright. A cross brace joins respective arms at points spaced from the apex. The corner stanchions are movable from a storage position above the base frame to the operative position spaced from the base and in a vertical position relative to a supporting surface. Projections at the top of the stanchions cooperate with removable horizontal panels which further stabilize the structure in operative position.

REFERENCES:
patent: 2669117 (1954-02-01), Fuhrmann
patent: 2978754 (1961-04-01), Wilson
patent: 3199518 (1965-08-01), Glidewell
patent: 3212605 (1965-10-01), Dickerson
patent: 3354596 (1967-11-01), Schafer
patent: 4638604 (1987-01-01), Rogers
patent: 4779542 (1988-10-01), Staten

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