Patents by Inventor George A. Riehle

George A. Riehle 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).

  • Patent number: 8076427
    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: January 12, 2009
    Date of Patent: December 13, 2011
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, George Riehle, Samuel Kaplan
  • 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: 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: 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
  • Publication number: 20070009682
    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: July 5, 2005
    Publication date: January 11, 2007
    Inventors: David Gervasi, George Riehle, Samuel Kaplan
  • 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
  • Publication number: 20060105177
    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: Application
    Filed: November 15, 2004
    Publication date: May 18, 2006
    Inventors: David Gervasi, George Riehle, Laurence Lynd, Theodore Lovallo
  • Publication number: 20060104679
    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: Application
    Filed: November 15, 2004
    Publication date: May 18, 2006
    Inventors: David Gervasi, George Riehle, Laurence Lynd, Theodore Lovallo
  • 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
  • Publication number: 20050025984
    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: Application
    Filed: July 31, 2003
    Publication date: February 3, 2005
    Applicant: Xerox Corporation
    Inventors: Peter Odell, Subajinie Sathiyavanthan, T. McAneney, Edward Zwartz, Alan Kuntz, George Riehle, David Gervasi, David Thompson, Karen Moffat, Caroline Turek
  • Patent number: 6680095
    Abstract: Fluoroelastomer compositions containing polyfunctional triaminopolysiloxanes having sterically large siloxane groups are disclosed. Compositions may be cured and are particularly suitable for use as surface release layers for fusing systems used in electrostatographic imaging systems.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: January 20, 2004
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, George A. Riehle, George J. Heeks, Arnold W. Henry, Santokh S. Badesha
  • Publication number: 20040005421
    Abstract: Elastomer compositions comprising a blend of a fluoroelastomer comprising a terpolymer of vinylidene fluoride, tetrafluoroethylene and hexafluoropropylene and a chlorofluoroelastomer comprising a co-or terpolymer of vinylidene fluoride, chlorotrifluoroethylene and 0-40 mole % of hexafluoropropylene are provided. The composition may be cured and is particularly suitable for use as a surface release layer for fusing systems used in electrostatographic imaging systems.
    Type: Application
    Filed: June 11, 2003
    Publication date: January 8, 2004
    Applicant: Xerox Corporation
    Inventors: David J. Gervasi, George A. Riehle, George J. Heeks, Arnold W. Henry, Santokh S. Badesha
  • Patent number: 6555181
    Abstract: A process for making a multiple-layer elastomer-coated member, includes applying a coating of an elastomeric material to a supporting metallic substrate; and curing the elastomeric material by exposure to radiant energy in a radiant energy curing apparatus.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: April 29, 2003
    Assignee: Xerox Corporation
    Inventors: Carla M. Santos, Elizabeth L. Ogren, Alan R. Kuntz, George A. Riehle, Laurence J. Lynd
  • Patent number: 6515069
    Abstract: A release agent having a polydimethylsiloxane and a fluorosurfactant other than a silicone glycol polymer, a perfluoroalkylsubstituted polyethylene glycol, or a perfluoroalkylsubstituted silane.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: February 4, 2003
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, Samuel Kaplan, George A. Riehle
  • Publication number: 20020136573
    Abstract: A method of curing a fuser member suitable for use in an image forming system using a radiant energy source. The fuser member comprises a substrate, a silicone rubber coating and a cross-linkable fluoroelastomer outer coating. The radiant energy source emits infrared energy directed towards the fluoroelastomer outer coating of the fuser member. The flouroelastomer coating is cured using infrared energy directed at specific bonds within the fluoroelastomer layer, so as to form directly with the infrared heat a cross-linked fluoroelastomer coating.
    Type: Application
    Filed: January 25, 2001
    Publication date: September 26, 2002
    Applicant: Xerox Corporation
    Inventors: Elizabeth L. Ogren, Carla M. Santos, Alan R. Kuntz, George A. Riehle, Laurence J. Lynd
  • Publication number: 20020132074
    Abstract: Elastomer compositions comprising a blend of a fluoroelastomer comprising a terpolymer of vinylidene fluoride, tetrafluoroethylene and hexafluoropropylene and a chlorofluoroelastomer comprising a co-or terpolymer of vinylidene fluoride, chlorotrifluoroethylene and 0-40 mole % of hexafluoropropylene are provided. The composition may be cured and is particularly suitable for use as a surface release layer for fusing systems used in electrostatographic imaging systems.
    Type: Application
    Filed: January 30, 2001
    Publication date: September 19, 2002
    Inventors: David J. Gervasi, George A. Riehle, George J. Heeks, Arnold W. Henry, Santokh S. Badesha
  • Patent number: 6447918
    Abstract: The present invention relates to electrostatographic fuser system members such as fuser rolls or belts having an outer surface layer comprising an interpenetrating polymer network comprising polytetrafluoroethylene and a cured polysiloxane elastomer, and a method for making such fuser system members.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: September 10, 2002
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, George A. Riehle, George J. Heeks, Arnold W. Henry, Santokh S. Badesha
  • Publication number: 20020102410
    Abstract: The present invention relates to electrostatographic fuser system members such as fuser rolls or belts having an outer surface layer comprising an interpenetrating polymer network comprising polytetrafluoroethylene and a cured polysiloxane elastomer, and a method for making such fuser system members.
    Type: Application
    Filed: January 30, 2001
    Publication date: August 1, 2002
    Inventors: David J. Gervasi, George A. Riehle, George J. Heeks, Arnold W. Henry, Santokh S. Badesha
  • Publication number: 20020102374
    Abstract: Fluoroelastomer compositions containing polyfunctional triaminopolysiloxanes having sterically large siloxane groups are disclosed. Compositions may be cured and are particularly suitable for use as surface release layers for fusing systems used in electrostatographic imaging systems.
    Type: Application
    Filed: January 30, 2001
    Publication date: August 1, 2002
    Inventors: David J. Gervasi, George A. Riehle, George J. Heeks, Arnold W. Henry, Santokh S. Badesha
  • Patent number: 6395444
    Abstract: Fuser members having improved thermal conductivity include an outer layer composed of elastomers and filler materials. The filler materials are oriented in the outer layer to provide directional thermal conductivity. Processes for forming the fuser members apply a liquid coating over a substrate and apply a magnetic field to the coating to orient the filler material. The coating is cured to retain the orientation of the filler material in the outer layer.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: May 28, 2002
    Assignee: Xerox Corporation
    Inventors: George A. Riehle, Laurence J. Lynd, Mark S. Amico