Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Trestle
Patent
1994-05-11
1995-01-03
Chotkowski, Karen J.
Fire escape, ladder, or scaffold
Unitary foldable, rigid scaffold or ladder
Trestle
182155, E04G 100
Patent
active
053777794
ABSTRACT:
Included are a work beam, legs and saddle assemblies made primarily of commercially available plastic pipe, such as PVC and ABS pipe. The work beam is elongate, hollow, tubular, and rigid. The ends of the beam are closed by caps, at least one of which is removable for providing access to the interior of the beam. Pair of legs are pivotingly coupled together at an intermediate point of each leg. Caps removably mountable on ends of the legs support an arcuate, resilient saddle element. Two brace rods are associated with each leg assembly. The legs, saddle assemblies and rods are all sized to fit collectively inside the beam.
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Anderson Edward B.
Chotkowski Karen J.
LandOfFree
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