Michael L Jacobs

US Patent:

6480686, Nov 12, 2002

Filed:

Jan 15, 2002

Appl. No.:

10/050008

Inventors:

Thomas Kurt Hilbert - Rochester NY 14609
Jerry Eugene Livadas - Rochester NY 14653-7001
Scott Thomas Slattery - Rochester NY 14653-7001
Patricia D. Reuschle - Rochester NY 14653-7001
Gary Edwin Nichols - Rochester NY 14653-7001
Michelle Dawn Wise - Rochester NY 14653-7001
Cathlyn Y. Yu - Rochester NY 14653-7001
Donald Steven Hensel - Rochester NY 14653-7001
Daniel Francis Vespone - Rochester NY 14653-7001
Christopher Stephen Garcia - Rochester NY 14653-7001
Thomas Samuel Albrecht - Rochester NY 14653-7001
Michael E. Jacobs - Rochester NY 14653-7001
James Robert Carey - Rochester NY 14609
Timothy Gilbert Armstrong - Rochester NY 14653-7001
D. Steven Kepner - Rochester NY 14653-7001
W. Charles Kasiske - Rochester NY 14653-7001

International Classification:

G03G 1508

US Classification:

399103, 399256

Abstract:

A magnetic brush development station with a housing forming a reservoir for developer material has a plurality of augers located in the housing for mixing developer material. A drive for the plurality of augers includes an assembly having a body extending through the development station housing. A plurality of bearings are positioned in the body with a spacer between the plurality of bearings. A rotatable shaft is connected between the plurality of augers and an auger drive member. A seal for the rotatable shaft has a lip formed of a material which is able to stretch sufficiently to maintain sealing contact with the shaft while the shaft is being rotated by the auger drive member.

US Patent:

6480689, Nov 12, 2002

Filed:

Jan 15, 2002

Appl. No.:

10/050007

Inventors:

Michael E. Jacobs - Rochester NY

Assignee:

NexPress Solutions LLC - Rochester NY

International Classification:

G03G 1508

US Classification:

399256, 366297

Abstract:

A magnetic brush development station including a housing forming, at least in part, a reservoir for developer material. A development roller is mounted within the housing for delivering developer material from the reservoir to a development zone. A plurality of rotatable augers are located in the housing for mixing developer material within the reservoir, and are arranged substantially side-by-side with respective parallel longitudinal axes, the most outboard of the plurality of augers being positioned to be raised and toward the center with respect to the housing of the development station. Accordingly the overall width of the development station is reduced while maintaining centerline distances between each of the plurality of augers so that individual augers do not interfere with one another.

US Patent:

7502581, Mar 10, 2009

Filed:

Aug 30, 2006

Appl. No.:

11/512926

Inventors:

Michael E. Jacobs - Rochester NY, US
Jeffrey A. Pitas - Macedon NY, US
Jeffrey R. Ulreich - Rochester NY, US
Donald S. Hensel - Rochester NY, US

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 15/09

US Classification:

399274

Abstract:

A magnetic brush development station for a reproduction apparatus with a movable metering skive so as to enable such metering skive to control and prevent contamination at such metering skive. A developer roller is mounted within the housing for delivering developer material to a development zone, the developer roller including a core magnet inside a shell, the core magnet and the shell having relative rotation. A transport mechanism is provided for delivering developer material from the reservoir to the development roller. A metering skive is provided for establishing a developer material metering gap between the metering skive and the developer roller for controlling the quantity of developer material delivered from the reservoir portion of the housing to the development zone. A mechanism is provided for selectively moving the metering skive to an operative position relative to the developer roller and to a position remote from the developer roller, wherein build up of contamination can be substantially prevented.

US Patent:

50831666, Jan 21, 1992

Filed:

Oct 20, 1989

Appl. No.:

7/424634

Inventors:

Lawrence A. Hill - Rochester NY
Michael E. Jacobs - Henrietta NY
Arthur S. Kroll - Rochester NY
Ralph E. Williams - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 1506
G03G 2100

US Classification:

355260

Abstract:

A development station for developing electrostatic images includes a housing which has a vertically oriented separating wall which divides the housing into first and second chambers. In assembly both chambers are open at the top permitting ready loading of one chamber with a mixture of toner and carrier and the other chamber with substantially toner. The separating wall includes an opening at the bottom for passage of toner into the chamber containing the mixture. A toner applicator is located at the top of the chamber containing the mixture and a cover is permanently affixed across the tops of the chambers, totally sealing the chambers except for an opening in the cover opposite the toner-applicator. Because of the design of the station, especially the chambers which are open at the top for easy loading of toner and carrier, the station can economically be made disposable. A method for assembling the elements which make up the development station and for loading the toner and/or carrier in the various chambers is also described.

US Patent:

56728719, Sep 30, 1997

Filed:

Feb 29, 1996

Appl. No.:

8/609073

Inventors:

Michael E. Jacobs - Rochester NY
John W. May - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

H01J 1904

US Classification:

250324

Abstract:

A device for handling corona charger wires in order to facilitate the placement of wires within the housing of the corona charger. The corona wire handling device includes a substantially rectangular frame, the frame having opposed long side members and opposed short side members. The long side members of the rectangular frame are readily separable from the short side members thereof. A mechanism, associated with the rectangular frame, is provided for supporting an intermediate portion of at least one corona wire on the frame. Further, a mechanism is provided for controlling tension on the corona wire induced by the corona wire intermediate support mechanism. Accordingly, when the rectangular frame is associated with the corona charger for placement of a corona wire operatively therein and the tension control mechanism is activated, tension increase in the corona wire induced by insertion of the corona wire in the corona charger is controlled to balance wire tension in order to prevent corona wire damage or breakage. Thereafter, the long side members of the rectangular frame are separated from the short side members to enable removal of excess portions of the rectangular frame and the wire supporting mechanism.

US Patent:

50619616, Oct 29, 1991

Filed:

Aug 3, 1990

Appl. No.:

7/562346

Inventors:

Michael E. Jacobs - Henrietta NY
Douglas A. Hons - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 500

US Classification:

355212

Abstract:

In an electrostatographic apparatus including a housing having a lower portion containing electrostatographic process stations and an upper portion connected thereto containing a dielectric member supported on a core, the upper housing portion is movable relative to the lower housing portion to a first (closed) position where the dielectric member is in operative relation to such electrostatographic process stations and a second (open) position wherein the dielectric member is remote from such electrostatographic process stations to enable ready access to such process stations. The dielectric member core is mounted in the upper housing portion for movement with the upper housing portion or movement relative thereto to a position intermediate the upper and lower housing portions when the upper portion is in its second position. A core support and locating device includes a plate member having a surface with a profile which supports the dielectric member core when the core is in its intermediate position, and guides the core automatically into its position for moement with the upper housing portion when the upper housing portion is moved to its first position.

US Patent:

52820025, Jan 25, 1994

Filed:

Dec 3, 1992

Appl. No.:

7/985471

Inventors:

Michael E. Jacobs - Henrietta NY
David M. Gaudino - Rochester NY
Michael E. Baister - Pittsford NY
Arthur E. Dunn - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 1506

US Classification:

355245

Abstract:

Image forming apparatus includes a developing device for developing electrostatic images with dry toner. The developing device has more than one developing unit supported on a carriage for movement through a development position. A unitary sump component defines the sump for each unit and includes a mixing device in each sump. The sump component is removable for replacement of developer. The sump component includes a shaft extending from the component which is engageable by a drive in the developing device.

US Patent:

49223020, May 1, 1990

Filed:

Jul 7, 1988

Appl. No.:

7/216671

Inventors:

Lawrence A. Hill - Rochester NY
Michael E. Jacobs - Henrietta NY
Arthur S. Kroll - Brighton NY
Ralph E. Williams - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03G 1508
G03G 1509

US Classification:

355251

Abstract:

A device for developing electrostatic images carried on a film belt in an apparatus receiving the developing device includes device location surfaces which seat on apparatus location surfaces in the apparatus to locate the device with respect to the apparatus. Film support surfaces on the device support the film belt a fixed spacing from a developer applicator. The film support surfaces are located within tight tolerances with respect to the surface of the applicator to provide accurate positioning of the applicator and film belt.