Modular ladder system

Details Modular ladder system Modular ladder system

1995-07-17

1998-03-17

Chin-Shue, Alvin C.

Fire escape, ladder, or scaffold

Wall- or floor-attached

Ladder

182187, E06C 110

Patent

active

057276480

ABSTRACT:
A modular ladder system for climbing trees is provided, comprising an upper assembly and a lower assembly, wherein the lower assembly is slidable relative to the upper assembly; wherein the upper assembly includes a first pair of support members attached to one another by a top step, and wherein the lower assembly includes a second pair of support members attached to one another by a bottom step; a locking device operatively disposed between the upper assembly and the lower assembly for selectively locking the position of the lower assembly relative to the upper assembly in an extended position and a retracted position; an attachment device on the upper assembly for attaching the ladder module to a tree; and a stabilizer on the upper assembly and the lower assembly for stabilizing the ladder module against the tree.

REFERENCES:
patent: 3774720 (1973-11-01), Hovey
patent: 4592446 (1986-06-01), White
patent: 5143177 (1992-09-01), Smith
patent: 5277273 (1994-01-01), Grimes
patent: 5509499 (1996-04-01), Prejeen
"Speed Steps" flyer published by Alumitech Industries, Inc., Mamou, Louisiana.

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