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Title: Portable Blast Wheel Cleaning Machine
Author: Robert B Watkin, Peachtree City, GA
Source: US Patent 5,885,141
Publication year 1999
Document number: 1999075
Number of pages: 9
Abstract:
An apparatus for blast cleaning a generally vertical surface is disclosed. The device features a blast cabinet containing a blast wheel rotatably mounted about a horizontal
axis. The blast wheel is positioned adjacent to an opening in the cabinet through which it propels abrasive material against the vertical surface being cleaned. Rebounding
abrasive again contacts the rotating blast wheel. This contact deflects the particulate through a rebound corridor, to the side and into-a filter. The abrasive then falls
into a storage hopper for reuse. A conveyor is rotatably mounted so as to catch leaked particulate matter. The conveyor features a pair of opposing feed screws that meet in
the middle of the conveyor so that leaked particulate matter is projected up to the blast wheel in a manner similar to a water fountain. The particulate matter is then
propelled by the blast wheel to the rebound corridor.
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