Fire escape – ladder – or scaffold – Ladder and platform – Platform with ladder as support
Patent
1993-07-27
1994-08-16
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Ladder and platform
Platform with ladder as support
182120, 182103, 248238, E06C 716
Patent
active
053378571
ABSTRACT:
The present invention comprises a platform for an aluminum extension ladder which platform is adjustable upwardly and downwardly, and is pivotable between a pair of side frames, to permit a user's foot a comfortable support, in addition to the ladder rung to which it is attached.
REFERENCES:
patent: 2182475 (1939-12-01), Herline
patent: 2557270 (1951-06-01), Franklin
patent: 3067836 (1962-12-01), Carnicelli
patent: 5072808 (1991-12-01), Spalt et al.
Spalt Gregory P.
Spalt Taylor E.
Chin-Shue Alvin C.
Halgren Don
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