Fire escape – ladder – or scaffold – Scaffold external of shaft
Patent
1991-01-09
1992-12-01
Chotkowski, Karen J.
Fire escape, ladder, or scaffold
Scaffold external of shaft
182135, A47C 900
Patent
active
051672987
ABSTRACT:
A portable climbing apparatus consisting of an upper member that supports users body in a sitting or standing position facing toward or away from a tree or columnar like member, featuring a novel one piece continuous length of tubular steel rigid rail assembly and elevated cross bar portion shaped to proved multiple functions as a back rest, foot rest, and forward safety rail or guard member that house a half hexagon shaped tubular steel tree engagement member in telescopic alignment that cooperatively encircles a tree between two opposing sets of steel gripper members. A detachable seat member featuring three horizontal placement positions: one (1) near the base of tree used as an equipment shelf, seat or shooting rest, and two (2) positions to either the right or left lateral side of stand sitting/standing main frame platform member for use as an equipment shelf or shooting rest platform and used in either of these two positions when ascending and descending a tree or columnar like member. A lower foot climber member that supports user's feet and has the same opposing grippers and tree engagement member in telescopic alignment to the rail assembly with apertures provided in each rail member to adjust the length of the tree engagement member legs to varying diameter trees.
REFERENCES:
patent: 4331216 (1982-05-01), Amacker
patent: 4417645 (1983-11-01), Untz
patent: 4549633 (1985-10-01), Merritt
patent: 4667773 (1987-05-01), Davis
patent: 4726447 (1988-02-01), Gibson et al.
patent: 4936415 (1990-06-01), Williams
patent: 4969538 (1990-11-01), Amacker
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