Ionic strip coater
OwnerEdward J. Schaminginventor
Life of this patent
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Abstract
A high voltage charge at very low amperage is impressed on a bath of oil or other lubricant in a dielectric header through a submerged electrode. A grounded high speed moving metal strip attracts streams of the charged bath across its width through apertures or slots provided in the header. Pressurized air jets directed at these streams disperse the streams into a multitude of finer crossing streams which coat the strip completely and evenly. A recovery system for the oil or other lubricant is provided.
Claims5
An apparatus for coating a high speed moving strip with a liquid comprising liquid header delivery means for positioning on at least one side of the strip in spaced relation thereto so as to deliver multiple streams of liquid onto the strip, and simultaneously operable pressurized air spray delivery means directing an air spray onto said streams and dispersing the streams into a multitude of much finer liquid streams in a crossing pattern to completely and uniformly coat said strip, the air spray delivery means substantially surrounding the liquid header and having an outlet substantially in registration with the outlet of the header, and the liquid header and air spray delivery means comprising eccentrically interfitting cylindrical bodies, and means to adjust the eccentric relationship of the bodies one with respect to the other.
An apparatus for coating a high speed moving strip which is electrically grounded with oil or the like which is electrically charged whereby the oil will be attracted to the moving strip comprising an oil delivery header for positioning on at least one side of the strip across the strip in spaced relation thereto and having an oil outlet slot, a charging electrode within the header for submerging in a pool of oil contained in the header with the surface of said pool substantially at the level of said slot, and a simultaneously operable parallel axis pressurized air delivery header spaced exteriorly from the oil delivery header on one side of the outlet slot of the oil delivery header for directing pressurized air sprays onto discrete coating streams of oil leaving said slot and being directed onto said strip by electrostatic attraction, and the air sprays positioned so as to impinge on the discrete oil streams in the region between said outlet slot and strip to disperse the discrete oil streams into a multitude of substantially finer streams in a crossing pattern so that the strip will be coated with oil uniformly across its width.
Dependencies are inferred from the claim text.