Fire escape – ladder – or scaffold – Pitched roof conforming scaffold
Patent
1994-04-13
1997-02-11
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Pitched roof conforming scaffold
182206, E06C 714
Patent
active
056011547
ABSTRACT:
The invention disclosed herein relates to a portable roof scaffold system comprising a combination transport/hook/standoff device, a fixed-direction ladder platform, a fixed-direction roof-ladder standoff, a multi-direction ladder platform, a multi-direction roof-ladder standoff, and one or more ladders. The combined use of these devices create an easily handled, easily set-up, scaffold which is supported above the roof surface, or the skeletal framework of a roof. The ladder platforms may be positioned at a predetermined angle with respect to the ladder to form a level working platform on any roof slope, and may be slid along the ladder to raise or lower the working level on the roof even while remaining parallel to the angles of hips and valleys in the roof frame. Self-locking features of the ladder platforms make them easy and safe to relocate as work progresses.
REFERENCES:
patent: 3115211 (1963-12-01), Ostrander, Jr.
patent: 3606226 (1971-09-01), Bell, Sr.
patent: 3842934 (1974-10-01), Bartlett
patent: 3853202 (1974-12-01), Jarboe
patent: 3866715 (1975-02-01), Foulk
patent: 3899045 (1975-04-01), Geisel et al.
patent: 4085819 (1978-04-01), Ohnstad
patent: 4232759 (1980-11-01), Jacobs
patent: 4306700 (1981-12-01), Bell
patent: 4311207 (1982-01-01), Lurry
patent: 4398620 (1983-08-01), Townsend
patent: 4425985 (1984-01-01), Geisel et al.
patent: 4542874 (1985-09-01), Ronning
patent: 4546853 (1985-10-01), Hanson
patent: 4616734 (1986-10-01), Phelps
patent: 4618030 (1986-10-01), Campbell
patent: 4646877 (1987-03-01), Whan
patent: 4676341 (1987-06-01), Shaffstall
patent: 4695023 (1987-09-01), McCafferty
patent: 4785606 (1988-11-01), Burton
patent: 4800988 (1989-01-01), Dunmore
patent: 4828073 (1989-05-01), Friday
patent: 4856745 (1989-08-01), Mabie
patent: 4911265 (1990-03-01), Skaggs
patent: 4938312 (1990-07-01), Trail
patent: 4941547 (1990-07-01), Livick
patent: 4957185 (1990-09-01), Courchesne et al.
patent: 4972922 (1990-11-01), Levine
patent: 4972923 (1990-11-01), Krause
patent: 5020757 (1991-06-01), Sulecki et al.
patent: 5031722 (1991-07-01), Renaud
patent: 5143170 (1992-09-01), Hunt et al.
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