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).

  • Partially fluorinated polymer coated development electrodes
    Patent number: 7006780
    Abstract: An apparatus for reducing accumulation of toner from the surface of an electrode member in a development unit of an electrostatographic printing apparatus by providing a coating having a polymer with a partly fluorinated polymer on at least a portion of the electrode member.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: February 28, 2006
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, Santokh S. Badesha, John W. Spiewak
  • Fuser and fixing members containing PEI-PDMS block copolymers
    Patent number: 6985690
    Abstract: Polyetherimide-b-polysiloxane block copolymers are useful as surface layers for fuser and fixing members in various printing devices, including electrostatographic imaging systems and ballistic aerosol marking devices. Optionally, the polyetherimide-b-polysiloxane block copolymers are fluorinated, or include at least 50% by weight siloxane.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: January 10, 2006
    Assignee: Xerox Corporation
    Inventors: Peter G. Odell, Subajinie Sathiyavanthan, T. Brian McAneney, Edward G. Zwartz, Alan R. Kuntz, George A. Riehle, David J. Gervasi, David M. Thompson, Karen A. Moffat, Caroline M. Turek
  • Fuser member coating composition and processes for providing elastomeric surfaces thereon
    Patent number: 6951667
    Abstract: A method for providing a crosslinked fluorocarbon elastomer surface on a fuser member supporting substrate, which includes mixing together an acid acceptor, an emulsifier, water, and non-amino based crosslinker with a latex fluorocarbon elastomer, and the crosslinker is a diepoxy or disilylalkoxy-based crosslinker, or a combination thereof.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: October 4, 2005
    Assignee: Xerox Corporation
    Inventors: Santokh S. Badesha, Clifford O. Eddy, David J. Gervasi, George J. Heeks, Arnold W. Henry
  • Fuser member having fluorocarbon outer layer
    Patent number: 6927006
    Abstract: A fuser member having a polyimide substrate, and thereover, an outer layer with from about 61 to about 99 volume percent fluorocarbon.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: August 9, 2005
    Assignee: Xerox Corporation
    Inventors: Patrick J. Finn, Robert S. Pawlik, Elizabeth L. Barrese, David J. Gervasi, Pat Goode, Santokh S. Badesha
  • Transfix component with layer having polymer matrix with small molecules and image forming apparatus with same
    Patent number: 6875498
    Abstract: A transfix member comprising a heating member and a component film having a surface layer and a polymer matrix layer, wherein the polymer matrix layer contains a polymer and small molecules, and the polymer matrix layer is designed to allow the small molecules to diffuse through the polymer matrix to the surface layer upon the application of pressure or heat to the component film.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: April 5, 2005
    Assignee: Xerox Corporation
    Inventors: Santokh S. Badesha, David J. Gervasi
  • Fuser member having platinum catalyzed addition cured silicone layer
    Patent number: 6838140
    Abstract: A fuser component useful in electrostatographic machines, having a substrate, and thereover a silicone rubber layer having the crosslinked product of at least one platinum catalyzed addition curable vinyl terminated polyorganosiloxane, aluminum oxide fillers, iron oxide fillers, a crosslinking agent, and having an optional outer fluoroelastomer layer.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: January 4, 2005
    Assignee: Xerox Corporation
    Inventors: George J. Heeks, Arnold W. Henry, Santokh S. Badesha, David J. Gervasi
  • FUSER MEMBER HAVING PLATINUM CATALYZED ADDITION CURED SILICONE LAYER
    Publication number: 20040253436
    Abstract: A fuser component useful in electrostatographic machines, having a substrate, and thereover a silicone rubber layer having the crosslinked product of at least one platinum catalyzed addition curable vinyl terminated polyorganosiloxane, aluminum oxide fillers, iron oxide fillers, a crosslinking agent, and having an optional outer fluoroelastomer layer.
    Type: Application
    Filed: June 13, 2003
    Publication date: December 16, 2004
    Applicant: Xerox Corporation
    Inventors: George J. Heeks, Arnold W. Henry, Santokh S. Badesha, David J. Gervasi
  • Fluorosilicone release agent for fluoroelastomer fuser members
    Patent number: 6830819
    Abstract: A fuser member having a substrate, an outer fluoroelastomer layer having one of i) copolymers of two of vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene; ii) terpolymers of vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene; and iii) tetrapolymers of vinylidene fluoride, hexafluoropropylene, tetrafluoroethylene, and a cure site monomer; and a fluorinated silicone release agent.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: December 14, 2004
    Assignee: Xerox Corporation
    Inventors: Samuel Kaplan, Clifford O. Eddy, Santokh S. Badesha, Arnold W. Henry, Che C. Chow, David J. Gervasi, Alexander N. Klymachyov
  • Fuser member having high temperature plastic layer
    Patent number: 6829466
    Abstract: A fuser component useful in electrostatographic machines, having an optional substrate, an optional intermediate and/or adhesive layer, and a layer of a high temperature plastic such as epoxy, polyketone, polyether, polyamide, and polyparabanic acid.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: December 7, 2004
    Assignee: Xerox Corporation
    Inventors: Patrick J. Finn, Elizabeth L. Barrese, Pat Goode, David J. Gervasi
  • Blended fluorosilicone release agent for silicone fuser members
    Patent number: 6808815
    Abstract: A fuser member having a substrate, an outer silicone rubber layer; and a release agent having a combination of fluorosilicone release agent and a non-functional release agent.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: October 26, 2004
    Assignee: Xerox Corporation
    Inventors: Samuel Kaplan, Clifford O. Eddy, Santokh S. Badesha, Arnold W. Henry, Che C. Chow, David J. Gervasi, Alexander N. Klymachyov
  • Blended fluorosilicone release agent for polymeric fuser members
    Patent number: 6808814
    Abstract: A fuser member having a substrate, an outer polymeric layer; and a release agent having a combination of fluorosilicone release agent and a functional polydimethylsiloxane release agent having amino, mercapto, hydride, carboxy, and/or other functionality.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: October 26, 2004
    Assignee: Xerox Corporation
    Inventors: Samuel Kaplan, Clifford O. Eddy, Santokh S. Badesha, Arnold W. Henry, Che C. Chow, David J. Gervasi, Alexander N. Klymachyov
  • Fluorosilicone release agent for fluoroelastomer fuser members
    Publication number: 20040185271
    Abstract: A fuser member having a substrate, an outer fluoroelastomer layer having one of i) copolymers of two of vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene; ii) terpolymers of vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene; and iii) tetrapolymers of vinylidene fluoride, hexafluoropropylene, tetrafluoroethylene, and a cure site monomer; and a fluorinated silicone release agent.
    Type: Application
    Filed: March 18, 2003
    Publication date: September 23, 2004
    Applicant: Xerox Corporation
    Inventors: Samuel Kaplan, Clifford O. Eddy, Santokh S. Badesha, Arnold W. Henry, Che C. Chow, David J. Gervasi, Alexander N. Klymachyov
  • Blended fluorosilicone release agent for silicone fuser members
    Publication number: 20040185272
    Abstract: A fuser member having a substrate, an outer silicone rubber layer; and a release agent having a combination of fluorosilicone release agent and a non-functional release agent.
    Type: Application
    Filed: March 18, 2003
    Publication date: September 23, 2004
    Applicant: Xerox Corporation
    Inventors: Samuel Kaplan, Clifford O. Eddy, Santokh S. Badesha, Arnold W. Henry, Che C. Chow, David J. Gervasi, Alexander N. Klymachyov
  • Blended fluorosilicone release agent for polymeric fuser members
    Publication number: 20040185270
    Abstract: A fuser member having a substrate, an outer polymeric layer; and a release agent having a combination of fluorosilicone release agent and a functional polydimethylsiloxane release agent having amino, mercapto, hydride, carboxy, and/or other functionality.
    Type: Application
    Filed: March 18, 2003
    Publication date: September 23, 2004
    Applicant: Xerox Corporation
    Inventors: Samuel Kaplan, Clifford O. Eddy, Santokh S. Badesha, Arnold W. Henry, Che C. Chow, David J. Gervasi, Alexander N. Klymachyov
  • Fuser member coating composition and processes for providing elastomeric surfaces thereon
    Publication number: 20040180145
    Abstract: A method for providing a crosslinked fluorocarbon elastomer surface on a fuser member supporting substrate, which includes mixing together an acid acceptor, an emulsifier, water, and non-amino based crosslinker with a latex fluorocarbon elastomer, and the crosslinker is a diepoxy or disilylalkoxy-based crosslinker, or a combination thereof.
    Type: Application
    Filed: February 6, 2004
    Publication date: September 16, 2004
    Applicant: Xerox Corporation
    Inventors: Santokh S. Badesha, Clifford O. Eddy, David J. Gervasi, George J. Heeks, Arnold W. Henry
  • Coatings having fully fluorinated co-solubilizer, metal material and fluorinated solvent
    Patent number: 6767942
    Abstract: An organometallic coating composition having an organometallic compound, a fully fluorinated co-solubilizer, and a fluorinated solvent, and the organometallic compound is miscible in the coating composition, and the co-solubilizer is present in the coating composition.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: July 27, 2004
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, Santokh S. Badesha, George J. Bingham
  • Organometallic composition coatings for electrode members in a developer apparatus
    Patent number: 6751432
    Abstract: An apparatus and process for reducing accumulation of toner from the surface of an electrode member in a development unit of an electrostatographic printing or copying apparatus by providing an organometallic coating composition including an organometallic material on at least a portion of the electrode member.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: June 15, 2004
    Assignee: Xerox Corporation
    Inventor: David J. Gervasi
  • Processes for solubilizing organometallic compounds in fluorinated solvents by addition of a fluorinated non-catalytic co-solubilizer
    Patent number: 6747089
    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 fully 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: July 18, 2002
    Date of Patent: June 8, 2004
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, Santokh S. Badesha, George J. Bingham
  • Functional fusing agent
    Patent number: 6743561
    Abstract: Disclosed is a fusing release agent comprising the reaction product of a primary- or secondary-amino-functionalized polyorganosiloxane oil and a low molecular weight, non-sterically-hindered aldehyde or ketone.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: June 1, 2004
    Assignee: Xerox Corporation
    Inventors: George J. Heeks, Santokh S. Badesha, Samuel Kaplan, David J. Gervasi, Che C. Chow, Arnold W. Henry
  • Fuser member coating composition and processes for providing elastomeric surfaces thereon
    Patent number: 6733839
    Abstract: Fuser members and processes are provided for crosslinked fluorocarbon elastomer surfaces containing a fluorocarbon elastomer and a non-amino crosslinker together with methods for providing a crosslinked fluorocarbon elastomer surface on a fuser member supporting substrate which include mixing together an acid acceptor, an emulsifier, water, and non-amino based crosslinker with a latex fluorocarbon elastomer.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: May 11, 2004
    Assignee: Xerox Corporation
    Inventors: Santokh S. Badesha, Clifford O. Eddy, David J. Gervasi, George J. Heeks, Arnold W. Henry