Fire escape – ladder – or scaffold – Platform
Patent
1994-06-17
1996-09-17
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Platform
182119, E04G 115
Patent
active
055559557
ABSTRACT:
A combination scaffold plank comprised of a metal platform having a rectangular base, side flanges extending downwardly from each side of said rectangular base and return flanges extending inwardly from the end of each side flange. At each end of said metal platform said return flanges are cut away or bent upwards, and a pair of slip resistant blocks is secured to the lower or inner surface of said metal platform. A slip resistant board is then secured to the base of each pair of slip resistant blocks such that the slip resistant board extends below the side flanges and return flanges, thereby providing the surface upon which the combination scaffold plank can rest. This surface provides sufficient friction to prevent slipping of the combination scaffold plank off of the metal scaffold frame, or the upper metal surface of another scaffold plank, on which it rests.
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patent: 4496029 (1985-01-01), Kuroda
patent: 4742890 (1988-05-01), deBlauw
patent: 4852691 (1989-08-01), Bruno
Chin-Shue Alvin C.
Patent Construction Systems, Harsco Corporation
Reynolds, Esq. Eugene G.
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