Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Trestle
Patent
1995-09-29
1997-05-13
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Unitary foldable, rigid scaffold or ladder
Trestle
182185, 182186, F16M 1100
Patent
active
056283822
ABSTRACT:
A collapsible sawhorse is provided. The sawhorse includes a plurality of brackets, each bracket including a pair of bracket members and each member having a jaw region and a base region. A pair of crossbars are transversely mounted between the jaw regions of the brackets such that the crossbars are supported by the brackets in generally parallel position. At least one leg is mounted to each base region for supporting the brackets above a surface. The bracket members are each pivotally interconnected for movement between a deployed position, wherein the crossbars are held in relatively close spatial proximity and the legs are relatively spaced apart, and a collapsed position wherein the legs are held in relatively close spatial proximity and the crossbars are relatively spaced apart.
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patent: 4790411 (1988-12-01), Ottoson
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