Patents by Inventor David L. Jeanmaire
David L. Jeanmaire has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8523327Abstract: A printhead includes a liquid source, a first substrate, a filter, and a liquid chamber. Portions of the first substrate define a nozzle adapted to emit liquid from the liquid source. The liquid chamber includes a port. The liquid chamber is in fluid communication with the nozzle and the filter and is positioned between the first substrate and the filter.Type: GrantFiled: February 25, 2010Date of Patent: September 3, 2013Assignee: Eastman Kodak CompanyInventors: Kathleen M. Vaeth, John C. Brazas, David L. Jeanmaire
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Patent number: 8231207Abstract: The method includes forming first size drops by applying drop forming pulses during a unit time period ?0; forming second size drops by applying drop forming pulses during a second size drop time period, ?m, which is a multiple, m, of the unit time period; forming the corresponding plurality of drop forming energy pulse sequences so as to form non-print drops and print drops; delaying the timing of the drop forming energy pulses sent to the transducers of the second group relative to the drop forming energy pulses sent to the transducers of the first group by a delay time ?L, characterized by ?L being equal to d*?0 where d is 1½ to 9½, when printing at a first speed and ?L is approximately equal to f*?0 times where f is 1½ to 9½, f is greater than d when printing at a speed slower than the first speed.Type: GrantFiled: November 6, 2009Date of Patent: July 31, 2012Assignee: Eastman Kodak CompanyInventors: Kim W. Montz, Todd R. Griffin, David L. Jeanmaire, Robert Link
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Patent number: 8226217Abstract: A method of forming print drops includes forming drops of a first size by applying drop forming energy pulses during a unit time period, ?0; forming drops of a second size by applying drop forming energy pulses during a second drop time period, ?m, wherein the second drop time period is a multiple, m, of the unit time period, ?m=m*?0, m?2; providing timing between drops for printing consecutive pixels is ?i=a*?0 where a is an integer?m; forming non-print drops and print drops according to the liquid pattern data; delaying the timing of the pulses for the drop forming energy pulses sent to the drop forming transducers of group number g relative to the drop forming energy pulses sent to the transducers of a first group by a delay time ?L, where ?L=g*(INT(a/n)+1/n)*?0+?b where g is an integer<n.Type: GrantFiled: November 6, 2009Date of Patent: July 24, 2012Assignee: Eastman Kodak CompanyInventors: Kim W. Montz, Todd R. Griffin, David L. Jeanmaire, Robert Link
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Patent number: 8104878Abstract: A method includes forming drops of first size by applying drop-forming pulses during unit time period, ?0; forming drops of second size by applying drop-forming pulses during second size drop time period, ?m, wherein the second sized drop time period is a multiple, m, of the unit time period, ?m=m*?0, and m?2; providing timing between drops for printing consecutive pixels is equal to ?i=a*?0 where a is an integer ?m and is a function of print media speed; forming the corresponding plurality of drop forming pulse sequences so as to form non-print drops and print drops according to the liquid pattern data; delaying the timing of the drop forming pulses sent to the transducers of the second group relative to the drop forming pulses sent to the transducers of the first group by a delay time ?L which is approximately equal to ?i/2.Type: GrantFiled: November 6, 2009Date of Patent: January 31, 2012Assignee: Eastman Kodak CompanyInventors: Kim W. Montz, Todd R. Griffin, David L. Jeanmaire, Robert Link
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Patent number: 8091990Abstract: A continuous liquid printing system gas flow device includes a gas flow duct structure including a first wall and a second wall. The first wall and the second wall are positioned spaced apart and opposite each other to form an opening. The first wall is contoured such that a distance between the first wall and the second wall varies when viewed in a direction perpendicular to the opening.Type: GrantFiled: May 28, 2008Date of Patent: January 10, 2012Assignee: Eastman Kodak CompanyInventors: David J. Nelson, David L. Jeanmaire, Douglas E. Schultz, Joseph E. Yokajty, Michael S. Hanchak, John C. Brazas
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Publication number: 20110205319Abstract: A printhead includes a liquid source, a first substrate, a filter, and a liquid chamber. Portions of the first substrate define a nozzle adapted to emit liquid from the liquid source. The liquid chamber includes a port. The liquid chamber is in fluid communication with the nozzle and the filter and is positioned between the first substrate and the filter.Type: ApplicationFiled: February 25, 2010Publication date: August 25, 2011Inventors: Kathleen M. Vaeth, John C. Brazas, David L. Jeanmaire
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Patent number: 7946691Abstract: A method of printing and a printhead are provided. The printhead includes a nozzle array having a width; a gas flow source; and a gas flow duct in fluid communication with the gas flow source. The gas flow duct includes an expansion region and a compression region. The expansion region of the gas flow duct gradually expands along its cross sectional length to at least the width of the nozzle array. The compression region of the gas flow duct gradually contracts along its cross sectional length.Type: GrantFiled: November 5, 2008Date of Patent: May 24, 2011Assignee: Eastman Kodak CompanyInventors: Todd R. Griffin, David L. Jeanmaire, David J. Nelson
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Publication number: 20110109675Abstract: The method includes forming first size drops by applying drop forming pulses during a unit time period ?0; forming second size drops by applying drop forming pulses during a second size drop time period, ?m, which is a multiple, m, of the unit time period; forming the corresponding plurality of drop forming energy pulse sequences so as to form non-print drops and print drops; delaying the timing of the drop forming energy pulses sent to the transducers of the second group relative to the drop forming energy pulses sent to the transducers of the first group by a delay time ?L, characterized by ?L being equal to d*?0 where d is 1½ to 9½, when printing at a first speed and ?L is approximately equal to f*?0 times where f is 1½ to 9½, f is greater than d when printing at a speed slower than the first speed.Type: ApplicationFiled: November 6, 2009Publication date: May 12, 2011Inventors: Kim W. Montz, Todd R. Griffin, David L. Jeanmaire, Robert Link
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Publication number: 20110109677Abstract: A method of forming print drops includes forming drops of a first size by applying drop forming energy pulses during a unit time period, ?0; forming drops of a second size by applying drop forming energy pulses during a second drop time period, ?m, wherein the second drop time period is a multiple, m, of the unit time period, ?m=m*?0, m?2; providing timing between drops for printing consecutive pixels is ?i=a*?0 where a is an integer?m; forming non-print drops and print drops according to the liquid pattern data; delaying the timing of the pulses for the drop forming energy pulses sent to the drop forming transducers of group number g relative to the drop forming energy pulses sent to the transducers of a first group by a delay time ?L, where ?L=g*(INT(a/n)+1/n)*?0+?b where g is an integer<n.Type: ApplicationFiled: November 6, 2009Publication date: May 12, 2011Inventors: Kim W. Montz, Todd R. Griffin, David L. Jeanmaire, Robert Link
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Publication number: 20110109705Abstract: A method includes forming drops of first size by applying drop-forming pulses during unit time period, ?0; forming drops of second size by applying drop-forming pulses during second size drop time period, ?m, wherein the second sized drop time period is a multiple, m, of the unit time period, ?m=m*?0, and m?2; providing timing between drops for printing consecutive pixels is equal to ?i=a*?0 where a is an integer?m and is a function of print media speed; forming the corresponding plurality of drop forming pulse sequences so as to form non-print drops and print drops according to the liquid pattern data; delaying the timing of the drop forming pulses sent to the transducers of the second group relative to the drop forming pulses sent to the transducers of the first group by a delay time ?L which is approximately equal to ?i/2.Type: ApplicationFiled: November 6, 2009Publication date: May 12, 2011Inventors: Kim W. Montz, Todd R. Griffin, David L. Jeanmaire, Robert Link
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Patent number: 7748829Abstract: A method of printing includes associating a pixel area of a recording medium with a nozzle and a time interval during which a fluid drop ejected from the nozzle can impinge the pixel area of the recording medium. The time interval is divided into a plurality of subintervals. Some of the plurality of subintervals are grouped into blocks. One of two labels is associated with each block. The first label defines a printing drop and the second label defines non-printing drops. No drop forming pulse is associated between subintervals of each block having the first label. A drop forming pulse is associated between each subinterval of each block having the second label. A drop forming pulse is associated between other subintervals between each pair of consecutive blocks. Drops are caused to be ejected from the nozzle based on the associated drop forming pulses.Type: GrantFiled: July 12, 2007Date of Patent: July 6, 2010Assignee: Eastman Kodak CompanyInventors: Gilbert A. Hawkins, David L. Jeanmaire
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Publication number: 20100110151Abstract: A method of printing and a printhead are provided. The printhead includes a nozzle array having a width; a gas flow source; and a gas flow duct in fluid communication with the gas flow source. The gas flow duct includes an expansion region and a compression region. The expansion region of the gas flow duct gradually expands along its cross sectional length to at least the width of the nozzle array. The compression region of the gas flow duct gradually contracts along its cross sectional length.Type: ApplicationFiled: November 5, 2008Publication date: May 6, 2010Inventors: Todd R. Griffin, David L. Jeanmaire, David J. Nelson
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Publication number: 20090295879Abstract: A continuous liquid printing system gas flow device includes a gas flow duct structure including a first wall and a second wall. The first wall and the second wall are positioned spaced apart and opposite each other to form an opening. The first wall is contoured such that a distance between the first wall and the second wall varies when viewed in a direction perpendicular to the opening.Type: ApplicationFiled: May 28, 2008Publication date: December 3, 2009Inventors: David J. Nelson, David L. Jeanmaire, Douglas E. Schultz, Joseph E. Yokajty, Michael S. Hanchak, John C. Brazas
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Patent number: 7413293Abstract: Drop deflector apparatus and methods for a continuous drop emission system comprising a plurality of drop nozzles emitting a plurality of continuous streams of a liquid that break up into streams of drops of substantially uniform drop volume having nominal flight paths that are substantially within a nominal flight plane are disclosed. A plurality of path selection elements corresponding to the plurality of continuous streams of drops is provided operable to firstly deflect individual drops from the corresponding continuous stream of drops along a first deflection flight path diverging from the nominal flight path based on pattern data.Type: GrantFiled: May 4, 2006Date of Patent: August 19, 2008Assignee: Eastman Kodak CompanyInventor: David L. Jeanmaire
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Patent number: 7303265Abstract: A drop deflector apparatus for a continuous drop emission system that deposits a liquid pattern on a receiver according to liquid pattern data comprising a plurality of drop nozzles formed along a nozzle array axis and emitting a plurality of continuous streams of a liquid that breaks up into a plurality of streams of drops having nominal flight paths that are substantially parallel and substantially within a nominal flight plane is disclosed. An airflow plenum having an evacuation end connected to a negative pressure source and an impingement end having an opening located adjacent the nominal flight plane into which ambient air is drawn for the purpose of deflecting drops in an air deflection direction perpendicular to the nominal flight plane is provided.Type: GrantFiled: October 6, 2006Date of Patent: December 4, 2007Assignee: Eastman Kodak CompanyInventors: Christopher N. Delametter, David L. Jeanmaire, James M. Chwalek, Stephen F. Pond
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Patent number: 7261396Abstract: A method of printing includes associating a pixel area of a recording medium with a nozzle and a time interval during which a fluid drop ejected from the nozzle can impinge the pixel area of the recording medium; dividing the time interval into a plurality of subintervals; grouping some of the plurality of subintervals into blocks; associating one of two labels with each block, the first label defining a printing drop, the second label defining non-printing drops; associating no drop forming pulse between subintervals of each block having the first label; associating a drop forming pulse between each subinterval of each block having the second label; associating a drop forming pulse between other subintervals, the drop forming pulse being between each pair of consecutive blocks; and causing drops to be ejected from the nozzle based on the associated drop forming pulses.Type: GrantFiled: October 14, 2004Date of Patent: August 28, 2007Assignee: Eastman Kodak CompanyInventors: Gilbert A. Hawkins, David L. Jeanmaire
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Patent number: 7152964Abstract: A method for ink jet printing a plurality of pixels corresponding to a digital image including pixels of image data is taught using a half toning algorithm wherein droplets of two different volumes are formed. The method includes the steps of determining if the print command is invalid by examining previously formed adjacent print commands; replacing an invalid print command with a valid print command resulting in a modified error value to be diffused; and diffusing the modified error value in accordance the half toning algorithm.Type: GrantFiled: April 2, 2004Date of Patent: December 26, 2006Assignee: Eastman Kodak CompanyInventor: David L. Jeanmaire
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Patent number: 6986566Abstract: An emission device for ejecting a liquid drop is provided. The device includes a body. Portions of the body define an ink delivery channel and other portions of the body define a nozzle bore. The nozzle bore is in fluid communication with the ink delivery channel. An obstruction having an imperforate surface is positioned in the ink delivery channel. The emission device can be operated in a continuous mode and/or a drop on demand mode.Type: GrantFiled: November 12, 2003Date of Patent: January 17, 2006Assignee: Eastman Kodak CompanyInventors: Christopher N. Delametter, James M. Chwalek, David P. Trauernicht, David L. Jeanmaire
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Patent number: 6923529Abstract: An ink jet printer having an array of nozzles from which ink droplets of adjustable volume are emitted further includes a mechanism adapted to individually adjust the volume of the emitted ink droplets. The mechanism has a first state wherein the emitted droplets of selected nozzles are of a predetermined small volume and a second state wherein the emitted droplets of selected nozzles are of a predetermined large volume. A controller selectively switches the mechanism between its first and its second states such that ink droplets of the predetermined large volume are not simultaneously emitted from adjacent ones of the nozzles.Type: GrantFiled: December 26, 2001Date of Patent: August 2, 2005Assignee: Eastman Kodak CompanyInventors: James M. Chwalek, David L. Jeanmaire
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Patent number: 6908178Abstract: A print head provides for multi-level printing with colorants of different densities without print head replication. A continuous ink jet printer includes a plurality of ink sources; a print head connected to multiple ink sources; and apparatus adapted to selectively transfer ink from each of the connected sources to the print head or to block such transfer. The nozzles selectively create a streams of ink droplets having a plurality of volumes. The apparatus also includes a droplet deflector having a gas source to interact with the stream of ink droplets, thereby separating ink droplets into printing and non-printing paths. The apparatus includes a print heads which can be switched between “light” and “dark” ink sources. This allows multi-level printing, thus achieving higher print quality at the same resolution without incurring the costs associated with additional dedicated print heads.Type: GrantFiled: June 24, 2003Date of Patent: June 21, 2005Assignee: Eastman Kodak CompanyInventor: David L. Jeanmaire