Method of ladder-supported scaffold erection, and ladder...

Details Method of ladder-supported scaffold erection, and ladder... Method of ladder-supported scaffold erection, and ladder...

2005-04-26

2005-04-26

Chin-Shue, Alvin (Department: 3634)

Fire escape, ladder, or scaffold

Ladder and platform

Platform with ladder as support

C182S107000

Reexamination Certificate

active

06883642

ABSTRACT:
An improved ladder-supported scaffolding technique and system using a pair of horizontally spaced vertical ladders for supporting staging planks therebetween and held vertically and rigidly by top brackets parallely in front of, along, and spaced from a building structure, and having adjustable brackets attachable to intermediate ladder rungs with staging plank-supporting legs perpendicularly extending toward or away from the building structure.

REFERENCES:
patent: 567755 (1896-09-01), Stillman
patent: 623269 (1899-04-01), Wilber
patent: 2897013 (1959-07-01), Delp
patent: 3026963 (1962-03-01), Wilkie
patent: 3437296 (1969-04-01), Hinz
patent: 3476212 (1969-11-01), Eakins
patent: 4643275 (1987-02-01), LeBlanc
patent: 4941547 (1990-07-01), Livick
patent: 6109391 (2000-08-01), Tyson

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