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公开(公告)号：DE68916388D1
公开(公告)日：1994-07-28
申请号：DE68916388
申请日：1989-12-12
Applicant: XEROX CORP
Inventor： REALE LOUIS
Abstract: A corona charger (10) for depositing negative charge on an imaging surface, comprises at least one elongated conductive metal corona 'dischargeelectrode (11,34) supported between insulating end blocks (12, 14) and being coated with a substantially continuous thin conductive dry film of aluminum hydroxide containing conductive particles. The corona electrode may be a thin metal wire or alternatively at least one linear array of pin electrodes, and the conductive particles in the coating are graphite particles.
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公开(公告)号：GB2185424B
公开(公告)日：1989-10-25
申请号：GB8700781
申请日：1987-01-14
Applicant: XEROX CORP
Inventor： GOORAY ARTHUR M , HEEKS GEORGE J , REALE LOUIS , SHAH DIPIKA R
IPC: B01D53/34 , B01D39/00 , B01D39/14 , B01D39/20 , B01D53/46 , B01D53/56 , B01D53/66 , B01D53/81 , G03G21/00 , G03G21/20
Abstract: A multipurpose filtering material particularly for use in electrostatographic reproducing apparatus has a foraminous support matrix having a plurality of interconnecting voids to permit low impedance to the flow of gaseous material but sufficient to trap particulate material entrained in the gaseous material which is coated with a thin dehydrated alkaline film of an alkali metal silicate to neutralize nitrogen oxide species in the gaseous material and has adhesively bound thereto a particulate neutralizer for another noxious gas the surface of which is substantially exposed to the flow of gaseous material. A filter may be placed in electrostatographic reproducing apparatus at the inlet or outlet of an air stream passing therethrough to neutralize nitrogen oxide species and ozone generated by the corona discharge device, and ammonia from the incoming air.
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公开(公告)号：DE3574630D1
公开(公告)日：1990-01-11
申请号：DE3574630
申请日：1985-12-11
Applicant: XEROX CORP
Inventor： REALE LOUIS
Abstract: (D A corona generating device (10) for depositing negative charge on an imaging surface (14) carried on conductive substrate (15) comprises at least one elongate conductive corona discharge electrode (12), and means to connect the electrode to a corona generating potential source (18). At least one element (20) adjacent the corona discharge electrode is capable of adsorbing nitrogen oxide species generated once the corona generating electrode is energized and capable of desorbing nitrogen oxide species once that electrode is not energized. This element is coated with a substantially continuous thin dehydrated alkaline film (28) of an alkali silicate which neutralizes the nitrogen oxide species when generated. In a preferred embodiment the corona discharge electrode comprises a thin wire (12) coated at least in a discharge area with a dielectric material (13). In a further embodiment (see Fig. 2) the element (20) comprises a conductive shield (34) and an insulating housing (39) having two sides (32) adjacent the shield to define the longitudinal opening to permit ions emitted from the electrode to be directed toward a surface to be charged. The shield and the two sides of the housing are coated with a substantially continuous thin dehydrated alkaline film (40) of an alkali silicate.
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公开(公告)号：GB2185424A
公开(公告)日：1987-07-22
申请号：GB8700781
申请日：1987-01-14
Applicant: XEROX CORP
Inventor： GOORAY ARTHUR M , HEEKS GEORGE J , REALE LOUIS , SHAH DIPIKA R
IPC: B01D53/34 , B01D39/00 , B01D39/14 , B01D39/20 , B01D53/46 , B01D53/56 , B01D53/66 , B01D53/81 , G03G21/00 , G03G21/20 , B01D53/02
Abstract: A multipurpose filtering material particularly for use in electrostatographic reproducing apparatus has a foraminous support matrix having a plurality of interconnecting voids to permit low impedance to the flow of gaseous material but sufficient to trap particulate material entrained in the gaseous material which is coated with a thin dehydrated alkaline film of an alkali metal silicate to neutralize nitrogen oxide species in the gaseous material and has adhesively bound thereto a particulate neutralizer for another noxious gas the surface of which is substantially exposed to the flow of gaseous material. A filter may be placed in electrostatographic reproducing apparatus at the inlet or outlet of an air stream passing therethrough to neutralize nitrogen oxide species and ozone generated by the corona discharge device, and ammonia from the incoming air.
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公开(公告)号：DE69303089D1
公开(公告)日：1996-07-18
申请号：DE69303089
申请日：1993-03-16
Applicant: XEROX CORP
Inventor： REALE LOUIS
Abstract: A method and system is disclosed in which an article (12), having large open areas or a multiplicity of apertures, is dip coated. The method and system is particularly adapted for use in coating a grid of a corona charging device utilized in the xerographic process. A transport system (18,19) immerses and removes the article from a tank (14) storing coating material (16). Unwanted coating material is left in the apertures of the article. Thereafter, the transport system moves the article past an ultrasonic wave source (26) which applies air travelling ultrasonic radiation against the article. The impact of the ultrasonic energy transmitted to the unwanted coating material across the apertures causes the cavitation thereof. The cavitation of the unwanted coating material effectuates its removal from the apertures. The removed coating material is returned to the supply of coating material (16) in which the article was immersed.
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Patent Agency Ranking
公开(公告)号：BR9500053A
公开(公告)日：1995-10-17
申请号：BR9500053
申请日：1995-01-10
Applicant: XEROX CORP
Inventor： KUNZMANN BRENDAN W , BERMUDES ROBERT W , REALE LOUIS
Abstract: A corona generating assembly for charging a photoconductive surface includes a corona generator connected to a relatively large first voltage source to produce ions directed to the photoconductive surface. A conductive screen member or scorotron grid is operatively connected to a second voltage source to control the flow of ions generated from said corona generator to and through said conductive screen. The conductive screen and corona generator are arranged such that the conductive screen is between the corona generator and the photoconductive surface to be charged. A switching arrangement is provided for operatively connecting the conductive screen member with a third voltage source when the first and second voltage sources are removed from the corona generator and conductive screen. Through this arrangement an electrical potential is impressed on the conductive screen member to create a positive electrical field which inhibits effluent outgassing to the photoconductive surface, thus preventing the development of a significant copy quality defect.
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公开(公告)号：DE69005496D1
公开(公告)日：1994-02-10
申请号：DE69005496
申请日：1990-03-27
Applicant: XEROX CORP
Inventor： REALE LOUIS
Abstract: A corona generating device for depositing negative charge on the imaging surface carried on a conductive substrate comprises at least one elongated conductive corona discharge electrode (12), means to connect the electrode to a corona generating potential source (18), at least one element (20) adjacent the corona discharge electrode capable of adsorbing nitrogen oxide species generated when the electrode is energized and capable of desorbing nitrogen oxide species once that electrode is not energized, the element being coated with a substantially continuous thin conductive dry film (28) of aluminum hydroxide containing graphite and powdered nickel. In a preferred embodiment, the conductive corona discharge electrode comprises a scorotron with at least one linear array of pin coronodes where the corona control grid is coated with the film.
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公开(公告)号：DE3667734D1
公开(公告)日：1990-01-25
申请号：DE3667734
申请日：1986-07-01
Applicant: XEROX CORP
Inventor： REALE LOUIS
Abstract: A corona generating device for depositing negative charge on an imaging surface (14) carried on a conductive substrate (15) comprises at least one elongated conductive corona discharge electrode (12), means to connect the electrode to a corona generating potential source (18), at least one element (20) adjacent the corona discharge electrode capable of absorbing nitrogen oxide species generated once the corona generating is energized and capable of desorbing nitrogen oxide species once that electrode is not energized, the element being coated with a substantially continuous thin conductive dry film (28) of aluminum hydroxide. In a preferred embodiment,the conductive corona discharge electrode comprises a scorotron with at least one linear array of pin coronodes where the corona control grid is coated with the substantially continuous thin conductive dry film of aluminum hydroxide.
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公开(公告)号：DE69303089T2
公开(公告)日：1996-11-28
申请号：DE69303089
申请日：1993-03-16
Applicant: XEROX CORP
Inventor： REALE LOUIS
Abstract: A method and system is disclosed in which an article (12), having large open areas or a multiplicity of apertures, is dip coated. The method and system is particularly adapted for use in coating a grid of a corona charging device utilized in the xerographic process. A transport system (18,19) immerses and removes the article from a tank (14) storing coating material (16). Unwanted coating material is left in the apertures of the article. Thereafter, the transport system moves the article past an ultrasonic wave source (26) which applies air travelling ultrasonic radiation against the article. The impact of the ultrasonic energy transmitted to the unwanted coating material across the apertures causes the cavitation thereof. The cavitation of the unwanted coating material effectuates its removal from the apertures. The removed coating material is returned to the supply of coating material (16) in which the article was immersed.
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公开(公告)号：DE68916388T2
公开(公告)日：1995-01-12
申请号：DE68916388
申请日：1989-12-12
Applicant: XEROX CORP
Inventor： REALE LOUIS
Abstract: A corona charger (10) for depositing negative charge on an imaging surface, comprises at least one elongated conductive metal corona 'dischargeelectrode (11,34) supported between insulating end blocks (12, 14) and being coated with a substantially continuous thin conductive dry film of aluminum hydroxide containing conductive particles. The corona electrode may be a thin metal wire or alternatively at least one linear array of pin electrodes, and the conductive particles in the coating are graphite particles.
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