Fire escape – ladder – or scaffold – Scaffold external of shaft
Patent
1993-04-12
1994-10-18
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Scaffold external of shaft
108152, A01M 3102
Patent
active
053559746
ABSTRACT:
An apparatus for supporting a person at a preselected height on a stanchion has a floor member and a frame member that attaches to the floor member. A seat hingingly attaches and selectively locks to the floor member. A support member, having a piercing member, attaches to the floor member. A sound reducing means is located in the support member. An attachment device connects to the floor member. An adjustable tightening means adjustably attaches to the attachment device at one end and attaches the frame member at the other end to adjustably tighten the attachment device. A gripping means attaches to the frame member to reduce sliding of the apparatus down the tree.
REFERENCES:
patent: 3338332 (1967-08-01), Brantly
patent: 3358789 (1967-12-01), Laun
patent: 3419108 (1968-12-01), Mobbs
patent: 4605094 (1986-08-01), Minerd
patent: 4834217 (1989-05-01), Manes
patent: 4942942 (1990-07-01), Bradley
patent: 4997063 (1991-03-01), Bradley
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