Fire escape – ladder – or scaffold – Combined
Patent
1983-02-22
1984-02-07
Machado, R. P.
Fire escape, ladder, or scaffold
Combined
182 51, 182142, E04G 310
Patent
active
044297645
ABSTRACT:
The subject invention relates to a scaffold system for use in sandblasting. The scaffold system is intended to prevent particulates generated during the sandblasting operation from entering the atmosphere. This result is achieved by providing a platform having an enclosure formed on three sides thereof. A plurality of inverted pyramidal troughs are mounted in abutting side-by-side relationship on the lower surface of the platform. A conduit system is connected to the lower ends of the troughs. In use, particulates generated during the sandblasting operation are contained by the enclosure and directed into the troughs to be channeled by the conduit system to the ground.
REFERENCES:
patent: 2280984 (1942-04-01), Thurnau
patent: 2723885 (1955-11-01), Dietz
patent: 3566991 (1971-03-01), Prouix
patent: 3990536 (1976-11-01), Wilburn
patent: 3995715 (1976-12-01), Virtanen
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