Cleaning and liquid contact with solids – Apparatus – With movably or flexibly mounted spray or jet applying...
Patent
1995-10-20
1996-11-05
Stinson, Frankie L.
Cleaning and liquid contact with solids
Apparatus
With movably or flexibly mounted spray or jet applying...
134198, 134181, 239246, B08B 302
Patent
active
055707122
ABSTRACT:
In a first embodiment, a high pressure fluid blaster includes a rotating nozzle which has a plurality of separate fluid jet orifices. The fluid jet orifices are geometrically configured such that rotation of the nozzle in a single direction, i.e. clockwise, results in the desired metal cleaning or stripping. The plurality of jets are divided into two or more sets, each set having at least one jet therein, with the jets in each set oriented at a different angle from the jets in the other sets. This configuration will produce tubular streams of fluid as the nozzle rotates such that the streams first converge, then intersect, and finally diverge. As the jet streams are applied to a surface after the streams have diverged, they score the surface with concentric circular grooves due to the force of the high pressure fluid. Importantly, the force of the high pressure fluid does not just score the surface with these concentric circles, but the areas between these concentric circles are also blasted clean due to tangential fluid forces.
A second embodiment of the present invention is configured substantially identically to the first embodiment except that the different jet sets are all aligned at substantially the same angle from the central axis of the nozzle such that the fluid streams emanating from the jet sets only diverge, and never converge or intersect.
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NLB Corp.; 1989; Spin-Nozzle brochure (Model No. SRH 20-77).
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