Michael W Baumer

US Patent:

6454835, Sep 24, 2002

Filed:

Jun 2, 2000

Appl. No.:

09/587072

Inventors:

Michael F. Baumer - Dayton OH

Assignee:

Scitex Digital Printing, Inc.

International Classification:

B01D 1902

US Classification:

95 19, 95175, 95242, 96179, 96156, 96193, 347 92

Abstract:

A method and apparatus is provided for separating the liquid and non-liquid components of a foamy mixture. The apparatus comprises a filter through which the liquid portion of the foam can pass and through which the gaseous or air component cannot pass, unless a pressure differential across the filter exceeds the bubble point of the filter. Foam is supplied to a first side of the filter. The liquid component of the foam is removed from the second side of the filter, and the gaseous component of the foam from the first side of the filter. A pressure differential is established between the two sides of the filter to cause the liquid component of the foam to pass through the filter; but the pressure differential across the filter is prevented from exceeding the bubble point of the filter to prevent the gaseous component of the foam from passing through the filter.

US Patent:

6886910, May 3, 2005

Filed:

May 2, 2002

Appl. No.:

10/137496

Inventors:

Michael F. Baumer - Dayton OH, US

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

B41J002/15

US Classification:

347 40, 347 12

Abstract:

In a drop generator for use in an ink jet printer, stimulation transducers are bonded near the ends of the jet array on the droplet generator body. The transducers are electrically controlled with an oscillating voltage signal which can be modified in amplitude and phase with respect to the main driving signal. By altering the drive signal of the end transducers in amplitude and/or phase, the end sections being aligned with the solid end sections of the droplet generator, it is possible to match the vibration of the end sections with the central portion of the droplet generator. The result is more uniform stimulation down the length of the droplet generator.

US Patent:

7204020, Apr 17, 2007

Filed:

Oct 15, 2004

Appl. No.:

10/966236

Inventors:

Brian G. Morris - Dayton OH, US
Richard W. Sexton - Bainbridge OH, US
Michael F. Baumer - Dayton OH, US

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

B21D 53/76
G01D 15/00

US Classification:

298901, 29594, 29831, 29846, 29847, 216 27

Abstract:

A method for fabricating a charge plate for an ink jet printhead entails removing portions of conductive material from a dimensionally stable dielectric substrate with a coating of conductive material to form at least a first and second electrode on a first face with a first space between the first and second electrodes, removing portions of conductive material from the dimensionally stable dielectric substrate with a coating of conductive material to form a first electrode extension that engages the first electrode on the conductive charging face, and a second electrode extension that engages the second electrode on the conductive charging face, whereby the first and second electrode extensions are electrically isolated from each other, additionally forming a first space between the electrode extensions, which connects with the first space between the electrode extensions.

US Patent:

7350900, Apr 1, 2008

Filed:

Mar 14, 2005

Appl. No.:

11/079656

Inventors:

Michael F. Baumer - Dayton OH, US

International Classification:

B41J 2/155
B41J 2/05
B41J 2/175

US Classification:

347 42, 347 65, 347 85

Abstract:

An ink jet droplet generator body for an ink jet droplet generator comprising an orifice plate with a plurality of nozzles forming a jet array entails a throughbore with an entrance and exit port, the throughbore provides a path through that flows fluid from a fluid supply to the first slot. The first slot connects the throughbore to the orifice plate. One or more holes or a slot are located in the top of the generator body to direct fluid or a secondary source of fluid to the first slot and then the orifice plate.

US Patent:

7461927, Dec 9, 2008

Filed:

Mar 6, 2007

Appl. No.:

11/682343

Inventors:

Michael J. Piatt - Dayton OH, US
Michael F. Baumer - Dayton OH, US

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

B41J 2/09

US Classification:

347 77

Abstract:

A liquid ejection apparatus includes a liquid stream generator, an electrode system, and a stream deflector. The liquid stream generator includes a nozzle and is operable to produce a stream of liquid through the nozzle. The electrode system is operable to produce an electric field including a first region having a first magnitude and a second region having a second magnitude. The stream deflector is operable to selectively cause the stream to move into one of the first region and the second region.

US Patent:

7850283, Dec 14, 2010

Filed:

Apr 24, 2009

Appl. No.:

12/429205

Inventors:

Michael J. Piatt - Dayton OH, US
Shan Guan - Dublin OH, US
Richard W. Sexton - Bainbridge OH, US
Michael F. Baumer - Dayton OH, US

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

B41J 2/04
B41J 2/14
B41J 2/16

US Classification:

347 54, 347 47

Abstract:

A liquid drop ejector is disclosed including a nozzle structure and a thermal actuator. The nozzle structure includes a nozzle and a wall. The nozzle includes an end and the wall extends from the end of the nozzle. The thermal actuator is associated with at least one of the nozzle and the wall, and is operable to add surface energy to at least one of the nozzle and the wall to cause a directional change in a liquid flowing through the nozzle structure.

US Patent:

7997709, Aug 16, 2011

Filed:

Jun 20, 2006

Appl. No.:

11/425309

Inventors:

Michael F. Baumer - Dayton OH, US
Michael J. Piatt - Dayton OH, US
Yonglin Xie - Pittsford NY, US

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

B41J 2/18
B41J 2/045
B41J 2/175

US Classification:

347 89, 347 68, 347 85

Abstract:

A drop on demand ink jet print head has a chamber with a plurality of liquid passages into and out of said chamber, such that liquid is continuously moved into the chamber to a stagnation point adjacent to the nozzle opening, whereat the fluid comes substantially to rest, and out of the chamber from the stagnation point such that vector sum of liquid flow derived forces within the liquid channels is neutral. An actuator associated with the chamber is adapted to selectively increase the pressure of the liquid at the stagnation point to thereby eject a liquid drop from the nozzle opening. Continuous fluid flow internal to the system decreases the time to refill the fire chamber directly behind the nozzle opening after droplet ejection. This in turn dramatically increases the response time of the system.

US Patent:

8104170, Jan 31, 2012

Filed:

Jan 28, 2008

Appl. No.:

12/020789

Inventors:

Brian G. Morris - Dayton OH, US
Richard W. Sexton - Bainbridge OH, US
Michael F. Baumer - Dayton OH, US

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

H05K 3/02
B21D 53/76

US Classification:

29846, 298901, 29842, 347 75, 347 76

Abstract:

A charge plate and a method for fabricating a charge plate for an ink jet printhead includes the steps of removing portions of conductive material from a dimensionally stable substrate with a coating of conductive material to form at least a first and second electrode on a first face with a first space between the first and second electrodes, removing portions of conductive material from the dimensionally stable substrate with a coating of conductive material to form a first electrode extension which engages the first electrode on the conductive charging face, and a second electrode extension which engages the second electrode on the conductive charging face, whereby the first and second electrode extensions are electrically isolated from each other, additionally forming a first space between the electrode extensions, which connects with the first space between the electrode extensions.