Cleaning and liquid contact with solids – Processes – With treating fluid motion
Patent
1997-03-19
1999-08-24
Warden, Jill
Cleaning and liquid contact with solids
Processes
With treating fluid motion
134 38, 239601, B08B 302
Patent
active
059420456
ABSTRACT:
A method for removing hard coatings from an underlying surface is shown and described. In a preferred embodiment, a nozzle having a particular geometry is used in a high-pressure fluid system to produce an ultrahigh-pressure fluid fan jet. The fan jet is traversed across a surface to be cleaned, thereby removing a layer of material without damaging the underlying surface. The effectiveness of the coating removal is improved by selecting an appropriate power distribution for the fan jet, a standoff distance between the fan jet and the surface to be cleaned, the speed with which the fan jet traverses the surface and the length and diameter of a settling chamber existing upstream of the nozzle.
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Applicant received promotional material regarding jet nozzles manufactured by High Energy Jets Ltd. On Feb. 27, 1986.
Prototype of Jet Nozzle sold on Oct. 1, 1991.
Raghavan Chidambaram
Sisson Steven S.
Watson Jeffrey D.
Chaudhry Saeed
Flow International Corporation
Warden Jill
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