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US4964366A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for the production of photoconductive components for use in electrophotography

Assignee: Sharp Corp
•
Filing: 1988-10-27
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Granted: 1990-10-23
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Expires: 2008-10-27
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Abstract

Abstract An apparatus for the production of photoconductive components for use in electrophotography, including a coating tank that contains a certain amount of coating, the tank having a coating-supply opening, at a lower portion through which the coating is supplied to the tank, and a partition that is positioned between the inner wall of the tank and the outer wall of the electric conductor, whereby when an electric conductor to be coated is immersed in the coating and removed from the coating, occurrence of a turbulent flow of the coating in the vicinity of the electric conductor can be prevented.

Inventors

  • 👤 Makoto Kurokawa
  • 👤 Yoshihide Shimoda
  • 👤 Shuhei Tsuchimoto

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 13:48
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/05; G03G5/0525

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 168 words
An apparatus for the production of photoconductive components for use in electrophotography, comprising: a coating tank having an overflow weir at a top end thereof and a coating-supply opening at a lower portion through which a coating material is supplied to said coating tank; a chamber defined by the perimeters of the tank and communicating with said coating-supply opening; a partition means positioned in said chamber between the inner wall of said tank and the outer surface of an electric conductor to be coated with the coating material, said partition means being provided with a plurality of holes covered with a mesh filter and disposed at a lower portion thereof through which said coating material is supplied to and removed from the inside of the partition means, whereby when an electric conductor to be coated is immersed in said coating material and removed from said coating material, the occurrence of turbulent flow being created in said coating materials in the vicinity of said electric conductor is substantially prevented.
Claim 2
Independent Claim 168 words
An apparatus for the production of photoconductive components for use in electrophotography, comprising: a coating tank having an overflow weir at a top end thereof and a coating-supply opening at a lower portion through which a coating material is supplied to said coating tank; a chamber defined by the perimeters of the tank and communicating with said coating-supply opening; a partition means positioned in said chamber between the inner wall of said tank and the outer surface of an electric conductor to be coated with the coating material, said partition means being provided with a plurality of holes covered with a mesh filter and disposed at a lower portion thereof through which said coating material is supplied to and removed from the inside of the partition means, whereby when an electric conductor to be coated is immersed in said coating material and removed from said coating material, the occurrence of turbulent flow being created in said coating materials in the vicinity of said electric conductor is substantially prevented.
Claim 3
Dependent Claim 13 words
The apparatus of claim 1, wherein the partition means has a cylindrical configuration.
Claim 4
Independent Claim 136 words
An apparatus for coating an article while immersed in a coating material, said apparatus comprising: a tank having an overflow weir at a top end thereof; an inlet formed adjacent a bottom end of said tank; a chamber defined by the perimeters of the tank and communicating with said inlet for receiving the coating material; and a partition formed within said chamber, said partition including a plurality of openings formed at a lower end thereof, the lower end being spaced apart from the bottom end of said tank; wherein an upper edge of said partition is positioned higher than the overflow weir of said tank whereby turbulence created by inserting and removing the article to be coated within the confines of the partition can be substantially prevented from affecting a coating process proceeding within the chamber.
Claim 5
Independent Claim 136 words
An apparatus for coating an article while immersed in a coating material, said apparatus comprising: a tank having an overflow weir at a top end thereof; an inlet formed adjacent a bottom end of said tank; a chamber defined by the perimeters of the tank and communicating with said inlet for receiving the coating material; and a partition formed within said chamber, said partition including a plurality of openings formed at a lower end thereof, the lower end being spaced apart from the bottom end of said tank; wherein an upper edge of said partition is positioned higher than the overflow weir of said tank whereby turbulence created by inserting and removing the article to be coated within the confines of the partition can be substantially prevented from affecting a coating process proceeding within the chamber.
Claim 6
Dependent Claim 36 words
The apparatus according to claim 3, wherein said partition means has a plurality of holes, at a lower portion thereof through which said coating is supplied to and removed from the inside of said partition means.
Claim 7
Dependent Claim 17 words
The apparatus according to claim 3, wherein each of said holes is covered with a mesh filter.
Claim 8
Dependent Claim 13 words
The apparatus of claim 3, wherein the partition means has a cylindrical configuration.

References Cited (Backward Citations)

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US2114999A Cited
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US3413904A Cited
US3752383A Cited
USRE29073E Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-10-22 1994-04-23 1994-10-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-10-22 1998-04-23 1998-10-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-10-22 2002-04-23 2002-10-23 $7700.00 Window Closed / Lapsed

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