Airfoil air ring
AssigneeXerox Corporation
InventorsStanley J. Pietrzykowski, Edward C. Williams, Robert W. Hedrick, William H. Gilbert, deceased
Life of this patent
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Abstract
An apparatus for applying a coating solution to at least a portion of a substrate surface to form a coated surface comprises an arrangement for separating the substrate from the coating solution and an arrangement for creating a flow of gas onto the coated surface in a direction substantially parallel to the coated surface substantially in unison with the separating arrangement separating the substrate from the coating solution.
Claims20
An apparatus for applying a photoconductive coating solution to at least a portion of a photoconductor substrate surface to form a coated surface, comprising:
- means for placing the substrate into the coating solution;
- means for separating the substrate from the coating solution;
- and
- means for creating a substantially vertical, upwardly oriented flow of gas onto the coated surface substantially in unison with said separating means separating the substrate from the coating solution, said creating means defining an aperture on the periphery thereof through which the flow of gas passes in an upward direction substantially parallel to the coated surface, so that the flow of gas suspends the coating solution during the drying of the solution to reduce sagging of the solution.
A method for applying a photoconductive coating solution to at least a portion of a tubular photoconductor substrate to form a coated surface, the method comprising the steps of:
- dipping the substrate into the coating solution;
- removing the substrate from the coating solution;
- and
- creating a substantially vertical, upwardly oriented flow of gases spaced from the substrate and in a direction substantially parallel to the substrate and adjacent the coated surface of the substrate, substantially in unison with said removing step, so that the flow of gas suspends the coating solution during drying of the solution to reduce sagging of the solution.
An apparatus for applying a photoconductive coating solution to at least a portion of a tubular substrate to form a coated photoconductor tube, comprising:
- means for separating the substrate from the coating solution;
- and
- means for creating a substantially vertical, upwardly oriented flow of gas onto the tube substantially in unison with said separating means separating the substrate from the coating solution, said creating means including a directing device having a first surface and a second surface, said surfaces being opposed, arcuate, and smoothly contoured, said surfaces defining an aperture therebetween on the periphery thereof through which the flow of gas passes in an upward direction substantially parallel to the coated surface, so that the flow of gas is smooth, is accurately positioned and suspends the coating solution during the drying of the solution to reduce sagging of the solution.
Dependencies are inferred from the claim text.