Fire escape – ladder – or scaffold – Ladder with pivoted prop
Patent
1998-09-16
2000-07-25
Stodola, Daniel P.
Fire escape, ladder, or scaffold
Ladder with pivoted prop
182153, 182225, E04G 100, E04G 134, E04G 132
Patent
active
060926279
ABSTRACT:
A stowable knockdown sawhorse can be assembled in two configurations: an operating configuration and a storage configuration. The sawhorse includes a pair of inverted-V-shaped leg members and a saddle having four mounting assemblies--two at each end, one per side. Each leg member has a notched apex that envelops one end of the saddle and is in turn enveloped within an inclined channel formed within each mounting assembly, thereby forming the sawhorse into its operating configuration. Each mounting assembly further defines an exterior bearing surface, the bearing surfaces on like sides of the saddle facing and opposing each other and lying on planes that intersect beyond the saddle working surface to form an angle equal to the apex angle of the leg members. The bearing surfaces are thereby oriented to accept and retain therebetween the leg assemblies when disengaged from the ends of the saddle and inverted between the bearing surfaces to form the sawhorse into its storage configuration.
REFERENCES:
patent: 1442353 (1923-01-01), Merkle
patent: 1819252 (1931-08-01), Linsner
patent: 3289789 (1966-12-01), Larson
patent: 3618704 (1971-11-01), Smith
patent: 4640386 (1987-02-01), Hall
patent: 4923051 (1990-05-01), Newville
patent: 5102078 (1992-04-01), Nordeng
patent: 5257829 (1993-11-01), Weeks
Stodola Daniel P.
Thompson Hugh B.
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