Fire escape – ladder – or scaffold – Scaffold external of shaft
Patent
1996-02-26
1998-03-31
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Scaffold external of shaft
182 92, A45F 326
Patent
active
057327939
ABSTRACT:
A tree dech including a gusset. The gusset has a back wall with a pair of structures that extend outwardly. The back wall has a front face, a back face and a top end with a keyhole that is positioned over a lag bolt that is screwed within a tree trunk. The pair of structures each have a base and a pair of sides. The base is positioned along the back face of the back wall and adjacent a top edge of the top end. Lastly, a plate is positioned over the gusset and supported by the gusset. The plate, on the gusset, is capable of supporting a hunter.
REFERENCES:
patent: 3731956 (1973-05-01), Hanley
patent: 4113058 (1978-09-01), Kobosh
patent: 4600081 (1986-07-01), Wade
patent: 4727961 (1988-03-01), Dawson
patent: 4730700 (1988-03-01), Miller
patent: 4928793 (1990-05-01), Westimayer
patent: 5518083 (1996-05-01), Blennert
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