Tree step

Details Tree step Tree step

1983-06-01

1984-05-22

Machado, R. P.

Fire escape, ladder, or scaffold

Wall- or floor-attached

Independent rung or step

182228, 108152, A63B 2700, A63B 2904

Patent

active

044496125

ABSTRACT:
A tree step having an integral angle bracket with an obtuse angle forming a foot-supporting portion and a projecting tree-engaging leg with a projecting supporting arm connected pivotally and lockably to the angle bracket intermediate its ends with the free end of the projecting supporting arm having a tree-securing means thereon at the free end. The free end of the projecting tree-engaging leg of the angle bracket forms the hypotenuse of a right triangle when the tree step supporting arm is secured to a tree trunk with the tree trunk and the projecting tree-engaging leg forming the legs of a right triangle. The foot-supporting portion of the bracket projects outwardly from the supporting arm and upwardly from the tree-engaging leg.

REFERENCES:
patent: 3298459 (1967-01-01), Bergsten
patent: 3380697 (1968-04-01), Melcher
patent: 3498409 (1970-03-01), Meyer
patent: 3729160 (1973-04-01), D'Imperio
patent: 4413706 (1983-11-01), Michael
patent: 4415061 (1983-11-01), Meyer

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