Fire escape – ladder – or scaffold – Scaffold external of shaft
Patent
1989-05-25
1990-05-29
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Scaffold external of shaft
182 92, 108152, A45F 326, A01M 3102
Patent
active
049287931
ABSTRACT:
A rigid tree seat may be secured to a tree or worn as a backpack. The rigid tree seat comprises a sturdy frame having a seat portion and supporting ribs. The frame is removeably covered by a covering that, when in place, cooperates with the frame to form a pack for holding various supplies. First and second straps pass through the frame and the covering. The first strap is used to secure the rigid tree seat to a person's waist in backpack fashion or to a tree or the like. The second strap is used as a safety strap for a person sitting on the rigid tree seat in a tree. '
REFERENCES:
patent: 2943669 (1960-07-01), Haam
patent: 3353629 (1967-11-01), Brunes
patent: 3767011 (1973-10-01), Witt
patent: 4113058 (1978-09-01), Kobosh
patent: 4601364 (1986-07-01), York
patent: 4625833 (1986-12-01), Lewis
patent: 4674597 (1987-06-01), Humphrey
patent: 4776503 (1988-10-01), Sink
Spettel Gary
Westimayer Anthony J.
Cayen Donald
Machado Reinaldo P.
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