Patents by Inventor David J. Gervasi

David J. Gervasi 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).

  • Publication number: 20090111953
    Abstract: Use of release fluids or agents constituting hyperbranched polymers. The three-dimensional structure imparts characteristics that make the hyperbranched polymers useful in xerographic processes. The hyperbranched polymer release fluids or agents may be used with a fuser member having a substrate, an outer layer covering the substrate, and a release coating on the outer layer, wherein the release coating includes a hyperbranched polymer.
    Type: Application
    Filed: January 12, 2009
    Publication date: April 30, 2009
    Applicant: XEROX CORPORATION
    Inventors: David J. Gervasi, George Riehle, Samuel Kaplan
  • Patent number: 7509084
    Abstract: This is an electrophotographic marking system with the ability to minimize adherence of a marking composition to a fixing component in the system, such as a fuser roll. In this manner, offset is avoided and a better image results on the paper or receiving medium. This is accomplished by using a substituted polyolefin as a release agent that is coated on the surface of the fuser roll.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: March 24, 2009
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, Santokh S. Badesha
  • Patent number: 7495214
    Abstract: Systems and methods for authentication of materials used in imaging members and assemblies. Authentication of imaging materials ensure that compatible components are being used with the imaging members and assemblies. Embodiments provide a system and method for efficiently detecting whether materials being used in the imaging members and assemblies are compatible and authentic materials authorized for such uses.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: February 24, 2009
    Assignee: Xerox Corporation
    Inventors: David H. Pan, Santokh S. Badesha, Randall R. Hube, David J. Gervasi
  • Patent number: 7494756
    Abstract: Use of release fluids or agents constituting hyperbranched polymers. The three-dimensional structure imparts characteristics that make the hyperbranched polymers useful in xerographic processes. The hyperbranched polymer release fluids or agents may be used with a fuser member having a substrate, an outer layer covering the substrate, and a release coating on the outer layer, wherein the release coating includes a hyperbranched polymer.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: February 24, 2009
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, George Riehle, Samuel Kaplan
  • Patent number: 7491435
    Abstract: A fuser member having a substrate; an outer layer containing a silicone or fluoropolymer; and a release agent material coating on the outer layer, wherein the release agent material coating includes a perfluorinated polyether having a skeleton of Formulas I or II or mixtures thereof: CF3—(CF2CF2)m—O—(R1R2O)—(R3R3O)n—(R3O)p—(CF2)q—CF3??Formula I wherein R1 is selected from the group consisting of CF2, CF—CF3 and —NR4R5; R2 is selected from the group consisting of CF2, CF—CF3, and —NR4R5; R3 is selected from the group consisting of CF2 and CF3; R4 is selected from the group consisting of hydrogen, alkyl group having from about 1 to about 18 carbon atoms, arylalkyl group having from about 7 to about 18 carbon atoms, mercapto, hydride and carbinol functional group; R5 is selected from the group consisting of alkyl having from about 1 to about 20 carbons, and a fluoroalkyl having from about 2 to about 10 carbons; m is a number of 0 or 1; n is a number of from about 0 to about 500; p is a number of from about 0 t
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: February 17, 2009
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, Bryan J. Roof, Santokh S. Badesha
  • Publication number: 20090009573
    Abstract: A printing apparatus includes a printing station, including at least one printhead for applying phase-change ink to the substrate, and a backing member disposed on an opposite side of the substrate substantially opposite the printhead, the backing member causing the substrate to reach a predetermined ink-receiving temperature.
    Type: Application
    Filed: July 5, 2007
    Publication date: January 8, 2009
    Applicant: XEROX CORPORATION
    Inventors: James R. Larson, Jeffrey J. Folkins, Roger A. Newell, Donald M. Bott, Roger Leighton, Edward B. Caruthers, JR., David J. Gervasi, David A. Mantell, Vincent M. Williams, Michael J. Levy, James M. Casella, Jeremy C. DeJong, Paul J. McConville
  • Publication number: 20080230719
    Abstract: Systems and methods for authentication of materials used in imaging members and assemblies. Authentication of imaging materials ensure that compatible components are being used with the imaging members and assemblies. Embodiments provide a system and method for efficiently detecting whether materials being used in the imaging members and assemblies are compatible and authentic materials authorized for such uses.
    Type: Application
    Filed: March 21, 2007
    Publication date: September 25, 2008
    Applicant: Xerox Corporation
    Inventors: David H. Pan, Santokh S. Badesha, Randall R. Hube, David J. Gervasi
  • Publication number: 20080124142
    Abstract: This is an electrophotographic marking system with the ability to minimize adherence of a marking composition to a fixing component in the system, such as a fuser roll. In this manner, offset is avoided and a better image results on the paper or receiving medium. This is accomplished by using a substituted polyolefin as a release agent that is coated on the surface of the fuser roll.
    Type: Application
    Filed: June 19, 2006
    Publication date: May 29, 2008
    Inventors: David J. Gervasi, Santokh S. Badesha
  • Publication number: 20070291092
    Abstract: This is a phase change marking system with the ability to minimize adherence of a marking composition to a component in the system, such as an imaging member. In this manner, offset is avoided and a better image results on the paper or receiving medium. This is accomplished by using a substituted polyolefin as a release agent that is coated on the surface of the imaging member.
    Type: Application
    Filed: June 19, 2006
    Publication date: December 20, 2007
    Inventors: David J. Gervasi, Santokh S. Badesha
  • Publication number: 20070277690
    Abstract: An offset printing apparatus for transferring a phase change ink onto a print medium, which includes a) a phase change ink component for applying a phase change ink in a phase change ink image; b) an imaging member for accepting the phase change ink image from the phase change ink component, and transferring the phase change ink image from the imaging member to the print medium, the imaging member having i) an imaging substrate, and thereover ii) an optional outer layer; and iii) iii) a release agent material coating, wherein the release agent material coating includes a perfluorinated polyether having a skeleton selected from the group consisting of Formulas I and II and mixtures thereof: CF3—(CF2CF2)m—O—(R1R2O)—(R3R3O)n—(R3O)p—(CF2)q—CF3Formula I wherein R1 is selected from the group consisting of CF2, CF—CF3 and —NR4R5; R2 is selected from the group consisting of CF2, CF—CF3, and —NR4R5; R3 is selected from the group consisting of CF2 and CF3; R4 is selected from the group consisting of hydrogen, alkyl
    Type: Application
    Filed: May 31, 2006
    Publication date: December 6, 2007
    Inventors: David J. Gervasi, Bryan J. Root, Santokh S. Badesha
  • Publication number: 20070281165
    Abstract: A fuser member having a substrate; an outer layer containing a silicone or fluoropolymer; and a release agent material coating on the outer layer, wherein the release agent material coating includes a perfluorinated polyether having a skeleton of Formulas I or II or mixtures thereof: CF3—(CF2CF2)m—O—(R1R2O)—(R3R3O)n—(R3O)p—(CF2)q—CF3Formula I wherein R1 is selected from the group consisting of CF2, CF—CF3 and —NR4R5; R2 is selected from the group consisting of CF2, CF—CF3, and —NR4R5; R3 is selected from the group consisting of CF2 and CF3; R4 is selected from the group consisting of hydrogen, alkyl group having from about 1 to about 18 carbon atoms, arylalkyl group having from about 7 to about 18 carbon atoms, mercapto, hydride and carbinol functional group; R5 is selected from the group consisting of alkyl having from about 1 to about 20 carbons, and a fluoroalkyl having from about 2 to about 10 carbons; m is a number of 0 or 1; n is a number of from about 0 to about 500; p is a number of from about 0 to
    Type: Application
    Filed: May 31, 2006
    Publication date: December 6, 2007
    Inventors: David J. Gervasi, Bryan J. Roof, Santokh S. Badesha
  • Patent number: 7294377
    Abstract: A fuser member with a supporting substrate having an outer surface layer of a fluoroelastomer, and the fluoroelastomer outer surface layer is prepared by: a) dissolving a fluoroelastomer; b) adding and reacting a biphenyl compound and an amino silane having amino functionality to form a homogeneous fluoroelastomer solution; and c) subsequently providing a surface layer of the resulting homogeneous fluoroelastomer solution to the supporting substrate.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: November 13, 2007
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, George A. Riehle, Laurence J. Lynd, Theodore Lovallo
  • Patent number: 7214462
    Abstract: A fuser member component to fuse the transferred developed image to the copy substrate, wherein the fuser member includes a substrate, an outer polymeric layer, and a release agent material coating on the outer polymeric layer, and the release agent material coating includes a blend of at least two different amino-functional siloxane release agent materials having amino-functional groups, and the at least two different amino-functional siloxane release agent materials have the following Formula I: wherein A represents —R4—X, wherein R4 represents an alkyl group having from about 1 to about 10 carbons, X represents —NH2 or —NHR5NH2 with R5 representing an alkyl group having from about 1 to about 10 carbons; R1 and R2 are the same or different and each is selected from the group consisting of an alkyl having from about 1 to about 25 carbons, an aryl having from about 4 to about 10 carbons, and an arylalkyl; R3 is selected from the group consisting of an alkyl having from about 1 to about 25 carbons, an aryl
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: May 8, 2007
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, Alexander N. Klymachyov, Samuel Kaplan, Santokh S. Badesha, Douglas B. Wilkins, George A. Gibson
  • Patent number: 7208258
    Abstract: A fuser member having a substrate, an outer polymeric layer, and a release agent material coating on the outer polymeric layer, and the release agent material coating includes a blend of at least two different amino-functional siloxane release agent materials, and each amino-functional siloxane release agent material contains amino functional groups having a degree of functionality of from about 0.01 to about 0.9 mole percent.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: April 24, 2007
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, Alexander N. Klymachyov, Samuel Kaplan, Santokh S. Badesha, Douglas B. Wilkins, George A. Gibson
  • Patent number: 7208259
    Abstract: A fuser member having a substrate, a layer thereover including a polymer, and, on the polymeric layer, a coating of a release agent having a mixture of (a) an organosiloxane polymer concentrate containing amino-substituted organosiloxane polymers, wherein there are amino functional groups on at least some of the polymer molecules of the concentrate, the concentrate has a degree of functionality of from about 0.3 to about 0.4 mole percent, the concentrate has a viscosity of from about 800 to about 1,300 centistokes; and (b) a nonfunctional organosiloxane polymer diluent, the diluent has a viscosity of from about 100 to about 2,000 centistokes; the mixture has a degree of functionality of from about 0.05 to about 0.3 mole percent, wherein the mixture has a viscosity of from about 550 to about 1,300 centistokes, and wherein the ratio by weight of concentrate to diluent is from about 1:2 to about 1:30, and an image forming apparatus having the fuser member.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: April 24, 2007
    Assignee: Xerox Corporation
    Inventors: Santokh S. Badesha, David J. Gervasi, George A. Gibson, Douglas B. Wilkins
  • Patent number: 7198875
    Abstract: A fuser member having a substrate, an outer polymeric layer, an outer polymeric layer, and a release agent material coating on the outer polymeric layer, wherein the release agent material coating includes a copolymer having the following formula: wherein A and B are the same or different, and each represents —R4—X, wherein R4 represents an alkyl group having from about 1 to about 10 carbons, X represents —NH2 or —NHR6NH2 with R6 representing an alkyl group having from about 1 to about 10 carbons; R1 and R2 are the same or different and each is selected from the group consisting of an alkyl having from about 1 to about 25 carbons, an aryl having from about 4 to about 10 carbons, and an arylalkyl; R3 and R5 are the same or different and each is selected from the group consisting of an alkyl having from about 1 to about 25 carbons, an aryl having from about 4 to about 10 carbons, an arylalkyl, and a substituted diorganosiloxane chain having from about 1 to about 500 siloxane units; b and c are numbers and a
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: April 3, 2007
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, Alexander N. Klymachyov, Samuel Kaplan, Santokh S. Badesha, Douglas B. Wilkins, George A. Gibson
  • Patent number: 7186462
    Abstract: A fuser member component to fuse the transferred developed image to the copy substrate, wherein the fuser member includes a substrate, an outer polymeric layer, and a release agent material coating on the outer polymeric layer, and the release agent material coating includes a T-type amino-functional siloxane release agent material having amino-functional groups, and the T-type amino-functional siloxane release agent material has the following Formula I: wherein A represents —R4—X, wherein R4 represents an alkyl group having from about 1 to about 10 carbons, X represents —NH2 or —NHR5NH2 with R5 representing an alkyl group having from about 1 to about 10 carbons; R1 and R2 are the same or different and each is selected from the group consisting of an alkyl having from about 1 to about 25 carbons, an aryl having from about 4 to about 10 carbons, and an arylalkyl; R3 is a substituted diorganosiloxane chain having from about 1 to about 500 siloxane units; b and c are numbers and are the same or different and
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: March 6, 2007
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, Alexander N. Klymachyov, Samuel Kaplan, Santokh S. Badesha, Douglas B. Wilkins, George A. Gibson
  • Patent number: 7127205
    Abstract: A fuser member with a supporting substrate having an outer surface layer of a fluoroelastomer, and the fluoroelastomer outer surface layer is prepared by: a) dissolving a fluoroelastomer; b) adding and reacting a biphenyl compound and a monofunctional amine hydrocarbon compound to form a homogeneous fluoroelastomer solution; and c) subsequently providing a surface layer of the resulting homogeneous fluoroelastomer solution to the supporting substrate.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: October 24, 2006
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, George A. Riehle, Laurence J. Lynd, Theodore Lovallo
  • Patent number: 7109365
    Abstract: A process for solubilizing an organometallic compound in a fluorinated solvent to form an organometallic solution by adding and reacting a co-solubilizer having a partly fluorinated polymer, an organometallic compound, and a fluorinated solvent, and the co-solubilizer has the ability to cause the organometallic compound to become miscible in a fluorinated solvent, and further, the co-solubilizer is not a catalyst and is present in the final organometallic solution.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: September 19, 2006
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, Santokh S. Badesha, John W. Spiewak
  • Patent number: 7105063
    Abstract: A method of treating a fuser member surface to extend the life thereof includes applying to the fuser member surface an ethylene diamine tetraacetate. In addition, the fuser member may be subjected to a sonic treatment during the application of the ethylene diamine traacetrate in order to remove additional materials therefrom that are resistant to removal by the ethylene diamine traacetate.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: September 12, 2006
    Assignee: Xerox Corporation
    Inventors: George A. Gibson, Richard E. Eisemann, Santokh S. Badesha, David J. Gervasi