| 摘要 |
<p>The present invention includes an apparatus (2) for delivery of pressurized particulate matter against a surface or target to abrade, texture, sandblast, etch, erase, cut, penetrate, smooth, clean, polish, harden and/or deburr the surface or target. Included is a fluidizing chamber (4) having a discharge end (20) of an inlet tube (18) that is disposed below or overlaps the intake end (22) of the outlet tube (34) such that the discharge of the inlet tube (18) blows the particulate matter into the fluid above the intake end (22) of the outlet tube (34), thereby suspending it therein, without clogging. The invention further provides for a duckbill check valve (30) to prevent backflow of particulate matter when the chamber (4) is disconnected from the pressurized fluid source or there is a drop in pressure from said source. Included with the general utility embodiment are a refill aperture (36) and removable refill aperture plug (38) to facilitate recharging the fluidizing chamber (4) with particulate matter using a filling cartridge (94).</p> |
