Patents by Inventor Gerard H. Rousseau
Gerard H. Rousseau 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: 7393312Abstract: A mounting scheme for a drum maintenance unit oiling roller assembly utilizing an end cap keeps the roller center justified on the image and/or keeps the oiling part of the roller centered on the image through a wide range of roller variation.Type: GrantFiled: December 22, 2003Date of Patent: July 1, 2008Assignee: Xerox CorporationInventor: Gerard H. Rousseau
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Patent number: 7114803Abstract: A latching mechanism is provided on a Drum Maintenance Unit (drum maintenance unit). The latching mechanism releasably secures the drum maintenance unit to a media device when installed in the media device and provides an electrical connection. The latching mechanism contacts with a locking tab and a data connection that may be located on a receiving portion of the media device. This arrangement allows the latching mechanism to simultaneously latch and connect with a receiving portion of the media device. The latching device of the connection device may be provided to releasably lock with the media device until a predetermined amount of force is applied.Type: GrantFiled: December 22, 2003Date of Patent: October 3, 2006Assignee: Xerox CorporationInventor: Gerard H. Rousseau
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Patent number: 7048369Abstract: A drum maintenance unit (drum maintenance unit) to reduce build up of electrostatic charge within a printer device. The drum maintenance unit may have a static shield positioned to reduce the build up of an electrostatic charge and to act as a physical barrier by preventing discarded oil from becoming airborne and returning to the oiling roller unfiltered. The static shield may also be utilized to retain and house the filtration system of the drum maintenance unit thus reducing part count and manufacturing time.Type: GrantFiled: December 22, 2003Date of Patent: May 23, 2006Assignee: Xerox CorporationInventors: Gerard H. Rousseau, Ernest I. Esplin, Kelly Kessler
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Patent number: 7036920Abstract: A system for applying a liquid to a support surface in an imaging apparatus comprises an application surface that applies liquid to the support surface; and a filter positioned in relation t the application surface such that liquid removed from the support surface passes through the filter to the application surface.Type: GrantFiled: December 22, 2003Date of Patent: May 2, 2006Assignee: Xerox CorporationInventors: Gerard H. Rousseau, Kelly A. Kessler, Barry D. Reeves, Timothy L. Crawford
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Patent number: 6921064Abstract: A metering blade suspension system utilizes a leaf spring that performs multiple combined functions such as supporting a metering blade assembly, controlling the angle, position and/or load of the blade assembly while allowing the assembly to pivot in a quasi-frictionless motion, locking the blade assembly in place, providing an electrical connection and/or bleeding static charge.Type: GrantFiled: December 22, 2003Date of Patent: July 26, 2005Assignee: Xerox CorporationInventor: Gerard H. Rousseau
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Patent number: 6481840Abstract: A method of improving automatic document feed of media printed with phase change inks coats the surface of the phase change inks on the media with fine particles. The particles may include PMMA, glass bead, silica particles, crushed glass particles, kaolin clay, micronized PE and PTFE, calcium carbonate powder, hard inks or toner powder. The particles may be applied to the surface of a transfix drum by oil transfer or electrostatically prior to jetting the phase change ink, or in the case of hard inks may be jetted onto the surface of the transfix drum (offset) with the phase change ink or onto the print media (direct) after application of the phase change ink in an overprint printing process. Also the particles may be applied by a pair of finishing rollers after the media has been printed with the phase change inks, either in a direct or offset print process, the finishing roller on the print side being coated with the fine particles.Type: GrantFiled: August 25, 1999Date of Patent: November 19, 2002Assignee: Xerox CorporationInventors: Rolf K. Mueller, Steven V. Korol, Wolfgang G. Wedler, Jeffrey R. Kohne, Augustus J. Rogers, IV, Mary Ryan-Hotchkiss, Donald R. Titterington, Gerard H. Rousseau
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Patent number: 6431703Abstract: An improved replaceable liquid application system for applying a liquid intermediate transfer surface to a support surface in a printer is provided. The liquid application system is contained in a removable cassette and utilizes a liquid impregnated arcuate surface that engages the support surface by rolling contact. The liquid impregnated arcuate surface and a reclamation assembly are contained in a removable cartridge in the cassette. A cartridge life status assembly determines when the useful life of the cartridge has been exhausted. Push tabs on the cartridge and finger wells on the cassette allow for easy and convenient removal of a used cartridge and insertion of a replacement cartridge.Type: GrantFiled: August 25, 1998Date of Patent: August 13, 2002Assignee: Xerox CorporationInventors: Gerard H. Rousseau, Larry E. Hindman, David W. Johnson, Brent R. Jones
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Publication number: 20020001001Abstract: An improved replaceable liquid application system for applying a liquid intermediate transfer surface to a support surface in a printer is provided. The liquid application system is contained in a removable cassette and utilizes a liquid impregnated arcuate surface that engages the support surface by rolling contact. The liquid impregnated arcuate surface and a reclamation assembly are contained in a removable cartridge in the cassette. A cartridge life status assembly determines when the useful life of the cartridge has been exhausted. Push tabs on the cartridge and finger wells on the cassette allow for easy and convenient removal of a used cartridge and insertion of a replacement cartridge.Type: ApplicationFiled: August 25, 1998Publication date: January 3, 2002Applicant: XEROX CORPORATIONInventors: GERARD H. ROUSSEAU, LARRY E. HINDMAN, DAVID W. JOHNSON, BRENT R. JONES
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Publication number: 20010055052Abstract: A method of improving automatic document feed of media printed with phase change inks coats the surface of the phase change inks on the media with fine particles. The particles may include PMMA, glass bead, silica particles, crushed glass particles, kaolin clay, micronized PE and PTFE, calcium carbonate powder, hard inks or toner powder. The particles may be applied to the surface of a transfix drum by oil transfer or electrostatically prior to jetting the phase change ink, or in the case of hard inks may be jetted onto the surface of the transfix drum (offset) with the phase change ink or onto the print media (direct) after application of the phase change ink in an overprint printing process. Also the particles may be applied by a pair of finishing rollers after the media has been printed with the phase change inks, either in a direct or offset print process, the finishing roller on the print side being coated with the fine particles.Type: ApplicationFiled: July 27, 2001Publication date: December 27, 2001Applicant: Xerox CorporationInventors: Rolf K. Mueller, Steven V. Korol, Wolfgang G. Wedler, Jeffrey R. Kohne, Augustus J. Rogers, Mary Ryan-Hotchkiss, Donald R. Titterington, Gerard H. Rousseau
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Patent number: 6176575Abstract: A scheme for extending the life of a drum maintenance unit that applies a release agent to the surface of a transfer drum in a phase change ink inkjet printer determines a release agent usage ratio based on an ink coverage percentage for each print. The release agent usage ratios for each print are accumulated, and each time the release agent ratio accumulation value has an integer change a maintenance counter in the drum maintenance unit is decremented by one from an initial nominal number of prints to produce a number of prints remaining. Once the number of prints remaining reaches a specified low value, the maintenance counter may be decremented by one for each additional print to allow for variability in the amount of release agent consumed per print from projected values. As a result depending upon a particular customer usage profile a drum maintenance unit having a nominal life of 30,000 prints, for example, may be extended by over 40%.Type: GrantFiled: August 25, 1999Date of Patent: January 23, 2001Assignee: Xerox CorporationInventors: Timothy L. Crawford, David W. Johnson, Gerard H. Rousseau
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Patent number: 6068372Abstract: An improved replaceable liquid application system for applying a liquid intermediate transfer surface to a support surface in a printer is provided. The liquid application system is contained in a removable cassette and utilizes a liquid impregnated arcuate surface that engages the support surface by rolling contact. The liquid impregnated arcuate surface and a reclamation assembly are contained in a removable cartridge in the cassette. A cartridge life status assembly determines when the useful life of the cartridge has been exhausted. Push tabs on the cartridge and finger wells on the cassette allow for easy and convenient removal of a used cartridge and insertion of a replacement cartridge.Type: GrantFiled: October 31, 1997Date of Patent: May 30, 2000Assignee: Xerox CorporationInventors: Gerard H. Rousseau, David W. Johnson, Richard Brzezinski, Jeffrey R. Kohne, Michael S. Allen, Brent R. Jones, Larry E. Hindman
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Patent number: 6056394Abstract: A solid ink stick feed system for use in a color printer is disclosed that utilizes a plurality of ink stick feed receptacles in an ink stick feed bin of predetermined shapes corresponding to the plurality of shapes of the ink sticks such that an incorrectly matched ink stick shape or incorrectly oriented ink stick is retained in a raised position to indicate to the printer operator that the ink stick should be removed and to facilitate grasping and removing such ink stick.Type: GrantFiled: November 26, 1997Date of Patent: May 2, 2000Assignee: Tektronix, Inc.Inventors: Gerard H. Rousseau, Brent R. Jones, David W. Johnson, John A. Wright
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Patent number: 5808645Abstract: An apparatus and method are described for applying an intermediate transfer surface, in the form of a liquid layer, on a support surface that may be used in a phase change ink printing system. The apparatus includes an applicator assembly with a leak-free valving system for distributing the liquid layer onto the support surface to produce the intermediate transfer surface and a means for metering the liquid layer uniformly on the support surface. The applicator assembly has a wick contact surface for removing foreign matter from and delivering the liquid onto the support surface. An improved liquid dispensing system is provided to provide the liquid to the wick which becomes saturated and, when brought into contact with the rotatable support surface of a transfer drum, applies the liquid in a layer to the support surface to form a liquid intermediate transfer surface.Type: GrantFiled: January 31, 1995Date of Patent: September 15, 1998Assignee: Tektronix, Inc.Inventors: Barry D. Reeves, Clark W. Crawford, Brent R. Jones, Gerard H. Rousseau, John A. Wright
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Patent number: 5805191Abstract: An apparatus and method are described for applying an intermediate transfer surface, in the form of a liquid layer, on a support surface as may be used in a phase change ink printing system. The apparatus includes an applicator assembly for distributing the liquid layer onto the support surface to produce the intermediate transfer surface and an apparatus for metering the liquid layer uniformly on the support surface. The applicator assembly has a contact medium for removing foreign matter from and delivering the liquid onto the support surface. Preferably the contact medium is a liquid impregnated web that is periodically incremented to present a clean web surface in contact with the support surface. The metering apparatus is a hydrodynamic blade that uniformly distributes the liquid intermediate transfer layer over the support surface.Type: GrantFiled: July 23, 1993Date of Patent: September 8, 1998Assignee: Tektronix, Inc.Inventors: Brent R. Jones, Brently L. Cooper, Randy C. Karambelas, Larry E. Hindman, Gerard H. Rousseau, Clark W. Crawford, James D. Rise
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Patent number: 5734402Abstract: A solid ink stick feed system for use in a color printer is disclosed that utilizes a plurality of ink stick feed receptacles in an ink stick feed bin of predetermined shapes corresponding to the plurality of shapes of the ink sticks such that an incorrectly matched ink stick shape or incorrectly oriented ink stick is retained in a raised position to indicate to the printer operator that the ink stick should be removed and to facilitate grasping and removing such ink stick.Type: GrantFiled: March 7, 1996Date of Patent: March 31, 1998Assignee: Tekronix, Inc.Inventors: Gerard H. Rousseau, Brent R. Jones, David W. Johnson, John A. Wright
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Patent number: D500073Type: GrantFiled: December 22, 2003Date of Patent: December 21, 2004Assignee: Xerox CorporationInventor: Gerard H. Rousseau