Patents by Inventor John J. Darcy

John J. Darcy 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: 11970480
    Abstract: Disclosed are compounds having the formula: wherein q, r, s, A, B, C, RA1, RA2, RB1, RB2, RC1, RC2, R3, R4, R5, R6, R14, R15, R16, and R17, are as defined herein, or a tautomer thereof, or a salt, particularly a pharmaceutically acceptable salt, thereof.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: April 30, 2024
    Assignee: GlaxoSmithKline Intellectual Property Development Limited
    Inventors: Adam Kenneth Charnley, Michael G. Darcy, Jason W. Dodson, Xiaoyang Dong, Terry V. Hughes, Jianxing Kang, Lara Kathryn Leister, Yiqian Lian, Yue Li, John F. Mehlmann, Neysa Nevins, Joshi M. Ramanjulu, Joseph J. Romano, Gren Z. Wang, Guosen Ye, Daohua Zhang
  • Patent number: 7780805
    Abstract: Belt material is wrapped around a small diameter mandrel. Instead of cutting the belt to length, the material is then continued to be wrapped around the mandrel, forming a belt material overlap, and held under tension. An ultrasonic welding horn is then traversed across the width of the belt overlap. As this horn is traversed across the overlapped joint, the horn not only joins the belt material wrapped around the mandrel but, as the trailing edge is held under tension, the horn also separates or severs the trailing edge of the material from the welded seam.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: August 24, 2010
    Assignee: Xerox Corporation
    Inventors: John J. Darcy, III, Michael S. Roetker, David W. Martin
  • Patent number: 7491281
    Abstract: A method is disclosed that involves providing a sheet of thermoplastic belt material having a first end with a first radius of curvature, providing a mandrel having a second radius of curvature that is no more than 12% larger or smaller than the first radius of curvature, wrapping the sheet of thermoplastic belt material on the mandrel to form a material overlap region, and welding the material overlap region to form a seamed belt. In one embodiment, instead of cutting the belt to length, the material is then continued to be wrapped around the mandrel, forming a belt material overlap, and held under tension. As the ultrasonic welding horn is traversed across the width of the belt overlap, the horn not only joins the belt material wrapped around the mandrel but, as the trailing edge is held under tension, the horn also separates or severs the trailing edge of the material from the welded seam. A seamed belt is also disclosed.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: February 17, 2009
    Assignee: Xerox Corporation
    Inventors: John J. Darcy, III, Michael S. Roetker, David W. Martin
  • Patent number: 7455802
    Abstract: A stress/strain relief process for a flexible, multilayered web stock includes providing a multilayered web stock including at least one layer to be treated, the at least one layer to be treated having a coefficient of thermal expansion significantly differing from a coefficient of thermal expansion of another layer; passing the multilayered web stock over and in contact with a first wrinkle-reducing roller that spontaneously creates transverse tension stress in the at least one layer to be treated; heating at least the at least one layer to be treated above a glass transition temperature Tg of the at least one layer to be treated to thereby create a heated portion of the at least one layer to be treated, a portion of the web stock in proximity to the heated portion of the at least one layer to be treated thereby becoming a heated portion of the web stock; inducing curvature in the heated portion of the web stock; and cooling the heated portion of the web stock at said curvature.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: November 25, 2008
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, John J. Darcy, Michael S. Roetker, Scott Griffin, Felix J. Santana, Satchidanand Mishra
  • Patent number: 7410548
    Abstract: Post treatment of an ultrasonically welded seamed flexible imaging member belt includes providing a flexible belt having an outer surface, an inner surface, parallel edges and a welded seam extending from one parallel edge to the other parallel edge, the belt seam including a seam region comprising an overlap of two oppositely miter cut edges, and two adjacent splashing formed around the seam; contacting the seam with abrasive and a super finishing tool; and super finishing the seam to remove at least the splashing on the outer surface of the belt.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: August 12, 2008
    Assignee: Xerox Corporation
    Inventors: John J. Darcy, III, Michael S. Roetker
  • Patent number: 7280791
    Abstract: A weldable intermediate transfer belt having a substrate with a homogeneous composition of polyaniline in an amount of from about 2 to about 25 percent by weight of total solids, and a thermoplastic polyimide in an amount of from about 75 to about 98 percent by weight of total solids, and the polyaniline has a particle size of from about 0.5 to about 5.0 microns, and an apparatus for forming images on a recording medium and incorporating the intermediate transfer belt.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: October 9, 2007
    Assignee: Xerox Corporation
    Inventors: Donald J. Goodman, Satish R. Parikh, Edward F. Grabowski, Matthew J. Torpey, M John Hinckel, Michael S. Roetker, Markus R. Silvestri, John J. Darcy, III, David W. Martin, Scott J. Griffin, Felix J. Santana, Robert J. Flanagan, Joellen Simone, Robert C. U. Yu, John P. Kerwawycz, Satchidanand Mishra
  • Patent number: 7238254
    Abstract: A method of welding together the ends of a web segment of a thermally weldable material, such as for a xerographic photoreceptor or intermediate transfer belt, to form an endless loop belt with a welded seam, by compressing the web segment ends in a welding area with a weld-splash confining laser-light transmissive glass plate, and applying sufficient laser-light energy through that glass plate to thermally weld the web ends together into a smoothly welded seam. The side of the belt opposite from the glass plate may be held by a pneumatic holding system. The side of the glass plate pressing against the web ends may have a slightly convex parabolic shape.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: July 3, 2007
    Assignee: Xerox Corporation
    Inventors: John J. Darcy, III, Michael S. Roetker
  • Patent number: 7182903
    Abstract: Multilayered web stock is directed toward a curved surface and at least one layer of the web stock is heated to a temperature above a glass transition temperature of the at least one layer of the web stock. The heating can occur just before or upon engaging the curved surface. The temperature of the at least one layer remains above the glass transition temperature while engaging the curved surface, allowing reshaping and/or realignment of the at least one layer relative to other layers of the web stock according to conformance to the curved surface. The web stock is cooled before it disengages from the curved surface. The heating can be done with a high power infrared lamp focused into a line across the web stock, and the cooling can be done with a cooled fluid jet. Additionally, a preheater can be employed, and a supplemental cooler can be used.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: February 27, 2007
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Satchidanand Mishra, Anthony M. Horgan, Richard L. Post, Edward F. Grabowski, Tsu-sen Chow, John A. Bergfjord, Sr., Miguel A. Boscan, John J. Darcy, III, Michael S. Roetker, Scott J. Griffin
  • Patent number: 7139519
    Abstract: A welded intermediate transfer belt and process for making the same having a substrate made primarily of at least one polyimide polymer. The weld may be ultrasonically or otherwise welded and may have favorable properties such as relatively thin seam thickness and small weld steps. The weld may be overlapped or miter cut.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: November 21, 2006
    Assignee: Xerox Corporation
    Inventors: John J. Darcy, III, Scott J. Griffin, David W. Martin, Michael S. Roetker, Felix J. Santana
  • Patent number: 7130569
    Abstract: A weldable intermediate transfer belt having a substrate with a homogeneous composition of polyaniline in an amount of from about 2 to about 25 percent by weight of total solids, and a thermoplastic polyimide in an amount of from about 75 to about 98 percent by weight of total solids, and the polyaniline has a particle size of from about 0.5 to about 5.0 microns, and an apparatus for forming images on a recording medium and incorporating the intermediate transfer belt.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: October 31, 2006
    Assignee: Xerox Corporation
    Inventors: Donald J. Goodman, Satish R. Parikh, Edward F. Grabowski, Matthew J. Torpey, M John Hinckel, Michael S. Roetker, Markus R. Silvestri, John J. Darcy, III, David W. Martin, Scott J. Griffin, Felix J. Santana, Robert J. Flanagan, Joellen Simone, Robert C. U. Yu, John P. Kerwawycz, Satchidanand Mishra
  • Patent number: 6905018
    Abstract: Packaging apparatus is provided for packaging a flexible photoconductive belt loop to prevent light from shocking the flexible photoconductive belt loop during shipping and during loading into an image reproduction machine. The packaging apparatus includes (a) a cut sheet of light occluding and protective flexible member for wrapping over the flexible photoconductive belt loop. The cut sheet has a length L2 including a first end, a second end, and (iv) at least one loop tacking aperture formed through a second end portion thereof. The packaging apparatus also includes a first adhesive tape member applied over the second end portion, through the at least one loop tacking aperture, and onto a first end portion. The packaging apparatus further includes a plurality of packaging cores, and a second adhesive tape member applied over the second end and over a portion of the main body portion.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: June 14, 2005
    Assignee: Xerox Corporation
    Inventors: John J. Darcy, III, David W. Martin, Michael S. Roetker, James F. Dildine, Jr., Moritz P. Wagner, J. Stephen Olesiuk
  • Patent number: 6851249
    Abstract: A packaging machine and method are provided for wrapping, folding and taping a flexible photoconductive belt loop to prevent light from shocking such photoconductive belt loop during shipping and during loading into a machine.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: February 8, 2005
    Assignee: Xerox Corporation
    Inventors: John J. Darcy, III, David W. Martin, Michael S. Roetker, James F. Dildine, Jr., Moritz P. Wagner, J. Stephen Olesiuk
  • Patent number: 6815131
    Abstract: A method of forming a flexible belt including: providing a flexible member; providing a work surface; forming the flexible member in a loop shape including an overlap region; positioning the overlap region of the flexible member in pressure contact with the work surface such that the photosensitive surface and the work surface is on the outside of the loop shape; positioning a welding tool on an inside surface of the loop shape of the flexible member opposite the overlap region; and ultrasonically welding the flexible member at one or more locations.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: November 9, 2004
    Assignee: Xerox Corporation
    Inventor: John J. Darcy, III
  • Publication number: 20040173943
    Abstract: Multilayered web stock is directed toward a curved surface and at least one layer of the web stock is heated to a temperature above a glass transition temperature of the at least one layer of the web stock. The heating can occur just before or upon engaging the curved surface. The temperature of the at least one layer remains above the glass transition temperature while engaging the curved surface, allowing reshaping and/or realignment of the at least one layer relative to other layers of the web stock according to conformance to the curved surface. The web stock is cooled before it disengages from the curved surface. The heating can be done with a high power infrared lamp focused into a line across the web stock, and the cooling can be done with a cooled fluid jet. Additionally, a preheater can be employed, and a supplemental cooler can be used.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 9, 2004
    Applicant: Xerox Corporation
    Inventors: Robert C.U. Yu, Satchidanand Mishra, Anthony M. Horgan, Richard L. Post, Edward F. Grabowski, Tsu-sen Chow, John A. Bergfjord, Miguel A. Boscan, John J. Darcy, Michael S. Roetker, Scott J. Griffin
  • Publication number: 20040048176
    Abstract: A method of forming a flexible belt including: providing a flexible member; providing a work surface; forming the flexible member in a loop shape including an overlap region; positioning the overlap region of the flexible member in pressure contact with the work surface such that the photosensitive surface and the work surface is on the outside of the loop shape; positioning a welding tool on an inside surface of the loop shape of the flexible member opposite the overlap region; and ultrasonically welding the flexible member at one or more locations.
    Type: Application
    Filed: September 6, 2002
    Publication date: March 11, 2004
    Applicant: Xerox Corporation
    Inventor: John J. Darcy,
  • Patent number: 6277534
    Abstract: Multiple-seam electrostatographic imaging member belts include two or more imaging member portions joined together by two or more seams. The belts can be formed from imaging member web that either includes or does not include an anti-curl backing layer, and that includes a charge transport layer that is substantially stress free.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: August 21, 2001
    Assignee: Xerox Corporation
    Inventors: Robert S. Foltz, Richard P. Millonzi, Robert C. U. Yu, John J. Darcy, Edouard E. Langlois
  • Patent number: 6197461
    Abstract: Multiple-seam electrostatographic imaging member belts include two or more imaging member portions joined together by two or more seams. The belts can be formed from imaging member web that either includes or does not include an anti-curl backing layer, and that includes a charge transport layer that is substantially stress free.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: March 6, 2001
    Assignee: Xerox Corporation
    Inventors: Robert S. Foltz, Richard P. Millonzi, Robert C. U. Yu, John J. Darcy, Edouard E. Langlois
  • Patent number: 6165670
    Abstract: A method of treating an electrostatographic imaging member web is applied to a web that includes a support substrate and at least one imaging layer formed over the support substrate. The electrostatographic imaging member web can optionally include no anti-curl backing layer. The web is bent into an arcuate shape and heated to a temperature above the glass transition temperature of the imaging layer. The imaging layer is then cooled while in the arcuate shape to a temperature below the glass transition temperature, forming a substantially stress-free imaging layer when conforming to the arcuate shape. The electrostatographic imaging members can be electrographic and electrophotographic imaging members. The treated electrostatographic imaging member webs can be formed into seamed electrostatographic imaging member belts such as ionographic imaging member belts and photoreceptor belts.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: December 26, 2000
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, John J. Darcy, Edouard E. Langlois
  • Patent number: 6157038
    Abstract: Apparatus and process for fabricating an electrostatographic imaging member assembly including providing a hollow electrostatographic drum having a first end and a second end, the first end having a surface selected from the group consisting of an uncoated surface, a surface coated with only a first component of a multiple component adhesive, a surface coated with only a second component for the multiple component adhesive, the second component containing a fluorescent tracer which fluoresces when irradiated with activating radiation, and a surface coated with a mixture of the first component and the second component containing the fluorescent tracer, directing activating radiation at the surface of the first end, detecting the amount of fluorescence emitted from the surface of the first end, and generating a signal which is substantially proportional to the intensity of fluorescence emitted from the surface of the first end, the signal ranging through at least three levels of strength, the first level repres
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: December 5, 2000
    Assignee: Xerox Corporation
    Inventors: Eugene A. Swain, John J. Darcy, III
  • Patent number: 6068722
    Abstract: A process for treating a seamed flexible electrostatographic imaging belt including providing an imaging belt including at least one layer including a thermoplastic polymer matrix and a seam extending from one edge of the belt to the other, providing an elongated support member having a arcuate supporting surface and mass, the arcuate surface having at least a substantially semicircular cross section having a radius of curvature of between about 9.
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: May 30, 2000
    Assignee: Xerox Corporation
    Inventors: Robert C. U. Yu, Karl V. Thomsen, Richard L. Post, Anthony M. Horgan, Satchidanand Mishra, Bing R. Hsieh, Edward F. Grabowski, Donald C. VonHoene, Michael S. Roetker, Leonard F. Quinn, John J. Darcy, III, Barbara D. Ceglinski