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US 6,296,704 B1Granted
Dip coating apparatus
AssigneeRicoh Company, Ltd.
InventorJunichi Yamazaki
Life of this patent
Estimating the term…
Abstract
In a dip coating apparatus including a jig having a function of generating a stream of air flowing downward toward the surface of a coating liquid stored in a bath, and causing the jig to hold a base to be coated and dip it in the coating liquid, the bath includes a lid having an opening whose inside diameter is equal to or greater than the inside diameter of the opening of the bath. The apparatus is capable of forming a uniform film free from roughness on the surface of a desired base, e.g., a photoconductive element for electrophotography.
Claims3
A dip coating apparatus, which comprises:
- a jig for holding a base to be coated, said jig having an air stream device for generating a stream of air flowing downward toward and away from a surface of a coating liquid stored in a bath container which is included as part of a bath member, and causing said jig to dip said base in said coating liquid, wherein said bath member further includes a liquid collecting chamber member and a lid connected to said chamber member, said lid being spaced from said bath container and having an opening whose inside diameter is equal to or greater than an inside diameter of an opening of said bath container whereby the flow of air away from said surface of said the coating liquid through said opening of said lid occurs without obstruction.
Dependencies are inferred from the claim text.