Tree step

Details Tree step Tree step

1980-12-08

1983-11-08

Machado, Reinanldo P.

Fire escape, ladder, or scaffold

Wall- or floor-attached

Independent rung or step

182 92, 2482161, A63B 2700, A63B 2904

Patent

active

044137060

ABSTRACT:
The screw at the upper end of the bracket leg is screwed into a tree to support the bracket with the step extending horizontally. When detached the screw can be folded into the leg and moved to a position preventing pivoting the screw relative to the leg. The bracket can now be folded. The screw can also be positioned to extend axially from the leg while unable to pivot with respect to the bracket so the folded bracket serves as a handle for the screw.

REFERENCES:
patent: 1912950 (1933-06-01), Moungelis
patent: 3298459 (1967-01-01), Bergsten
patent: 3380697 (1968-04-01), Melcher
patent: 3498409 (1970-03-01), Meyer
patent: 4029355 (1977-06-01), Wilhemsen

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