Fire escape – ladder – or scaffold – Ladder and platform – Platform with ladder as support
Patent
1994-02-14
1995-10-03
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Ladder and platform
Platform with ladder as support
182100, E06C 112
Patent
active
054544459
ABSTRACT:
An elevated observation stand is made in the form of a tubular ladder member with an eccentrically mounted seat and platform at the upper end, extending obliquely for safe access. A strap, engaged and tightened from the ground, binds the tubular ladder member to a tree at mid-span with sufficient force that the resulting friction supports the platform under load.
REFERENCES:
patent: 4257490 (1981-03-01), Banay
patent: 4263893 (1981-04-01), Norton
patent: 4411335 (1983-10-01), Forrester
patent: 4552246 (1985-11-01), Thomas
patent: 4592446 (1986-06-01), White
patent: 4648483 (1987-03-01), Skyba
Chin-Shue Alvin C.
Garner Charles C.
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