| 摘要 |
Portable sand blast apparatus for cleaning a surface at a confined location wherein the apparatus attaches to a conventional sand blasting nozzle and includes a flexible filter shroud having an open end terminating in a resilient sealing ring. The shroud confines the sand blast particles and functions as a filter bag to permit the escape of air while the flexible surface seal prevents escape of the particles adjacent the surface being treated. A handle is mounted at the shroud open end, and a transparent window may be incorporated into the shroud for visibility purposes.
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