Fire escape – ladder – or scaffold – Means maintaining platform level on angularly movable support – Swingable support
Patent
1996-05-03
1998-03-17
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Means maintaining platform level on angularly movable support
Swingable support
182 211, B66F 1104
Patent
active
057276455
ABSTRACT:
An aerial lift comprising a self-propelled vehicle such as a truck or the like having a rotatable pedestal mounted thereon. An elongated telescopic boom has one end pivotally secured, about a horizontal axis, to the pedestal. A first support is pivotally secured, about a horizontal axis, to the upper end of the telescopic boom and has a second support pivotally secured thereto, about a vertical axis, to the outer end thereof. The second support has a first connector at its outer end which is adapted to be removably connected to a second connector element provided on a work station. The connector elements cooperate to mount the work station on the upper end of the telescopic boom and which may be disconnected to remove the work station from the telescopic boom.
REFERENCES:
patent: 3295633 (1967-01-01), Milner
patent: 4518059 (1985-05-01), Frey-Wigger
patent: 4606469 (1986-08-01), Van Deijk
patent: 4754840 (1988-07-01), MacDonald
patent: 5271707 (1993-12-01), Derksen et al.
Chin-Shue Alvin C.
Glazer Enterprises, Inc.
Thomte Dennis L.
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