Self-propelled work platform and containment enclosure

Details Self-propelled work platform and containment enclosure Self-propelled work platform and containment enclosure

1993-04-22

1995-06-27

Chin-Shue, Alvin C.

Fire escape, ladder, or scaffold

Platform with elevating or lowering means

Suspended

182 2, 451 89, B24C 900

Patent

active

054271991

ABSTRACT:
A moveable, rigid enclosure having a work platform enclosed therewithin and which is sealed against a work surface. A negative pressure is applied to the interior of the enclosure. The rigid enclosure is supported by the inner work platform, and includes a funnel-shaped bottom portion coupled to a conduit for collecting and transporting of spent blast materials and debris contained within the enclosure which is released during blasting of the work surface. Blast media is supplied to the worker by a supply conduit extending interior of the rigid enclosure. A controller is positioned within the enclosure by which the worker while within the enclosure can adjust the vertical or horizontal position of the enclosure.

REFERENCES:
patent: 2998094 (1961-08-01), Fisher
patent: 4429764 (1984-02-01), Park
patent: 4649672 (1987-03-01), Thomann
patent: 4825598 (1989-05-01), Schlick
patent: 4854419 (1989-08-01), Lyras et al.
patent: 5011710 (1991-04-01), Harrison
patent: 5038527 (1991-08-01), Fastje
patent: 5065839 (1991-11-01), Napier
patent: 5067504 (1991-11-01), Coleman, III

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