Compact, quick assembly scaffold

Details Compact, quick assembly scaffold Compact, quick assembly scaffold

1980-03-14

1981-09-29

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Stackable

Male and female connecting means

182117, 182179, E04G 114

Patent

active

042917840

ABSTRACT:
A scaffold assembly including a ladder unit having an outside vertical member with a hollow top end and bottom end, an inside vertical member connected to the outside vertical member by horizontal steps, the top step and the bottom step having a hollow end adjacent to the point at which they are connected to the inside vertical member, the hollow top end and bottom end of the outside vertical member being adapted for connecting to another ladder unit by placing a pin in the hollow portions of the two vertical ladder units, the ladder unit being adapted for joining side by side to another ladder unit by placing a horizontal joining member in the open ends of the top and bottom steps to join the two ladder units horizontally side by side.

REFERENCES:
patent: 2593122 (1952-04-01), Droeger
patent: 2818308 (1957-12-01), Williams
patent: 2879552 (1959-03-01), Torrance
patent: 2897013 (1959-07-01), Delp
patent: 3084761 (1963-04-01), Robertson
patent: 3340959 (1967-09-01), Wilson
patent: 3340960 (1967-09-01), Wilson
patent: 3490559 (1970-01-01), Torch
patent: 3684058 (1972-08-01), Brown
patent: 3690407 (1972-09-01), Cullison
patent: 3850264 (1974-11-01), Salinas

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