Cleaning and liquid contact with solids – Processes – Including regeneration – purification – recovery or separation...
Patent
1976-03-17
1977-08-16
Bashore, S. Leon
Cleaning and liquid contact with solids
Processes
Including regeneration, purification, recovery or separation...
134 22R, 134 30, 134 34, 134 37, B08B 302, B08B 704
Patent
active
040424162
ABSTRACT:
A method for treating cup-shaped workpieces in which the workpieces are positioned within a shape-conforming chamber formed with an outlet port in the base thereof and a conforming nozzle is positioned within the interior of the workpiece in close clearance-spaced relationship. The nozzle is provided with an axial port for discharging a high-pressure treating fluid against the central portion of the interior bottom surface of the workpiece, causing a high-speed radial outward flow therealong and thence axially outwardly along the interior wall surfaces of the workpiece. Upon reaching the open end of the workpiece, the direction of flow is reversed and is directed axially along the exterior wall surface of the workpiece, and upon passing the bottom edge thereof, the fluid is deflected in impinging relationship against the outer bottom surface, whereafter it is discharged through the outlet port and is recovered for reuse. The method further include the steps of discharging a plurality of individual treating fluids in sequentially-phased relationship separated by intervening purging steps so as to effect a plural treatment of the surfaces of cup-shaped workpieces.
REFERENCES:
patent: 1799525 (1931-04-01), Morgan
patent: 3043318 (1962-07-01), Hi
patent: 3088473 (1963-05-01), Rogge
patent: 3868960 (1975-03-01), Cove et al.
Bashore S. Leon
Fisher Richard V.
Oxy Metal Industries Corporation
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