Patents by Inventor Santokh S. Badesha

Santokh S. Badesha 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: 11904388
    Abstract: A three-dimensional (3D) object printer has an ejector head with a single nozzle that is fluidly connected to a plurality of orifices in an orifice plate of the ejector head. An ejection of material through the single nozzle is emitted through the plurality of orifices simultaneously. In one embodiment, some of the orifices are oriented at an angle to a normal to the plane of the orifice plate. A splicer of the printer that generates machine ready instructions for operation of the printer identifies a standoff distance between the orifice plate and a surface onto which drops are being ejected to achieve a target drop spacing for the drops ejected onto the surface. In this manner, a material density for structure within a layer can be achieved without needing to increase the ejection frequency significantly or requiring the printer to incorporate multiple ejector heads.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: February 20, 2024
    Assignee: Additive Technologies LLC
    Inventors: Denis Cormier, Santokh S. Badesha, Varun Sambhy
  • Publication number: 20240002691
    Abstract: The present teachings include a flow coating solution, a fuser member and an image forming apparatus. The fuser member includes a substrate and flow coating solution applied onto the substrate. The outer layer includes a flow coating solution including a fluoroelastomer, a nucleophilic crosslinking agent and a non-functional polydimethylsiloxane having the formula: wherein n is from 100 to 20,000. The flow coating solution includes an effective solvent selected from the group consisting of N-methyl 2-pyrrolidone, dimethyl formamide, and dimethyl sulfoxide.
    Type: Application
    Filed: June 29, 2022
    Publication date: January 4, 2024
    Inventors: Varun Sambhy, Kevin Howard Taft, Brian Gillis, Santokh S. Badesha, Lindsay J. Goggins, James J. Padula, John R. Lambie, David Scott Derleth, James D. Quigley
  • Publication number: 20230332002
    Abstract: An aqueous inkjet ink composition including water; an optional co-solvent; an optional dispersant; an optional resin; an optional wax; and a BaSO4 pigment; wherein a particle size distribution is defined as Span=(Dn90?Dn10)/(Dn50); and wherein the BaSO4 pigment has a wide particle size distribution wherein the Span is 0.75 or greater.
    Type: Application
    Filed: April 18, 2022
    Publication date: October 19, 2023
    Inventors: Varun Sambhy, Santokh S. Badesha, Mihaela Maria Birau, Sepehr M. Tehrani, Syed Mohsin Ali
  • Publication number: 20230333495
    Abstract: A white toner having toner particles including: a resin; a BaSO4 pigment; wherein a particle size is defined as Span=(Dn90?Dn10)/(Dn50); and wherein the BaSO4 pigment has a wide particle size distribution wherein the Span is 0.75 or greater; and an optional wax. A pulverized (conventional) toner and an emulsion aggregation toner process.
    Type: Application
    Filed: April 18, 2022
    Publication date: October 19, 2023
    Inventors: Varun Sambhy, Santokh S. Badesha, Padam K. Angra
  • Publication number: 20230309241
    Abstract: A method for operating a three-dimensional (3D) metal object manufacturing apparatus selects operational parameters for operation of the printer to form vias in substrates. The method identifies the bulk metal being melted for ejection and uses this identification data to select the operational parameters. The method identifies the via holes in the substrate and operates an actuator to position an ejector opposite the via holes to eject drops of melted bulk metal toward the via holes to fill the via holes.
    Type: Application
    Filed: May 17, 2023
    Publication date: September 28, 2023
    Inventors: Denis Cormier, Santokh S. Badesha, Varun Sambhy
  • Patent number: 11766829
    Abstract: Nozzles for an additive manufacturing device and methods for improving wettability of the nozzles are disclosed. The method may include subjecting the nozzle to a surface treatment. The surface treatment may include contacting a surface of the nozzle with one or more surface modifying agents. The surface modifying agents may include one or more of an oxidizing agent, an acid, a base, or combinations thereof. The one or more surface modifying agents may increase an oxygen content of the surface of the nozzle. An inner surface of the nozzle may have a water contact angle of greater than 1° and less than about 90°. The inner surface of the nozzle may be free or substantially free of a coating.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: September 26, 2023
    Assignee: XEROX CORPORATION
    Inventors: Santokh S. Badesha, Varun Sambhy, Chu-Heng Liu, Peter M. Gulvin, Mark A. Cellura, George Shannon, Gary D. Redding, Lyle G. Dingman
  • Patent number: 11767447
    Abstract: Provided herein is a topcoat composition comprising at least one fluorosilicone, a hydride-functional crosslinking agent, an infrared-absorbing filler, and at least one dispersant that is non-reactive with the hydride-functional crosslinking agent, by weight based on a total weight of the topcoat composition, wherein the topcoat composition has a degree of crosslinking between about 10 micrograms/hour/milligrams to about 20 micrograms/hour/milligrams. Further provided herein are methods of making the topcoat composition, as well as an imaging blanket and methods of reducing coating defects on a media coated using the imaging member.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: September 26, 2023
    Assignee: XEROX CORPORATION
    Inventors: Kenny-Tuan T. Dinh, Alexander N. Klymachyov, Lin Ma, Kyle B. Tallman, Eric Robert Dudek, Michael L. Mehan, Harry F. Freitas, Jr., Angela Schnuerch, Michael S. Roetker, Ngoc-Tram Le, Varun Sambhy, Santokh S. Badesha
  • Patent number: 11737216
    Abstract: A three-dimensional (3D) metal object manufacturing apparatus selects operational parameters for operation of the printer to form vias in substrates. The apparatus identifies the bulk metal being melted for ejection and uses this identification data to select the operational parameters. The apparatus identifies the via holes in the substrate and positions an ejector opposite the via holes to eject drops of melted bulk metal toward the via holes to fill the via holes.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: August 22, 2023
    Assignee: Xerox Corporation
    Inventors: Denis Cormier, Santokh S. Badesha, Varun Sambhy
  • Patent number: 11724531
    Abstract: Disclosed herein is a substrate cooling unit for use with a duplex aqueous ink jet image forming device. The substrate cooling unit includes a first transport belt that is in contact with a portion of an outer surface of the first cooling roll to substantially sandwich individual sheets of image receiving media between a first cooling roll and the first transport belt. The substrate cooling unit includes a second cooling roll positioned downstream of the first cooling roll in a process direction and a second transport belt that is in contact with a portion of an outer surface of the second cooling roll to substantially sandwich the individual sheets of image receiving media between the second cooling roll and the second transport belt. The second transport belt includes a bottom layer of woven or non-woven fibers and a top rubber layer.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: August 15, 2023
    Assignee: XEROX CORPORATION
    Inventors: John Patrick Baker, Varun Sambhy, Santokh S. Badesha, David Scott Derleth, Piotr Sokolowski
  • Publication number: 20230249247
    Abstract: A three-dimensional (3D) printer includes an ejector and a coil wrapped partially around the ejector. The 3D printer also includes a power source configured to transmit voltage pulses to the coil. The 3D printer causes one or more drops of the liquid to be jetted out of the nozzle, and a substrate configured to support the one or more drops and advance along a path defined by one or more arcuate contours, where the one or more arcuate contours define a first layer of a strut. One or more struts are printed from the first layer of the strut to a node of each strut. The one or more struts are printed from a first layer to a node and combine to fabricate a lattice structure including one or more vertical struts and/or one or more angled struts wherein each strut intersects with another strut at a node.
    Type: Application
    Filed: April 14, 2023
    Publication date: August 10, 2023
    Applicant: XEROX CORPORATION
    Inventors: Denis Cormier, Dinesh Krishna Kumar Jayabal, Daniel Cormier, Santokh S. Badesha, Varun Sambhy
  • Patent number: 11666975
    Abstract: A three-dimensional (3D) printer includes an ejector having a nozzle. The 3D printer also includes a heating element configured to heat a solid metal in the ejector, thereby causing the solid metal to change to a liquid metal within the ejector. The 3D printer also includes a coil wrapped at least partially around the ejector. The 3D printer also includes a power source configured to supply one or more pulses of power to the coil, which cause one or more drops of the liquid metal to be jetted out of the nozzle. The 3D printer also includes a substrate configured to support the one or more drops as the one or more drops solidify to form a 3D object. The 3D printer also includes a gas source configured to cause an oxygen concentration to be less than about 5% proximate to the one or more drops, the 3D object, or both.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: June 6, 2023
    Assignee: XEROX CORPORATION
    Inventors: Varun Sambhy, George Shannon, Santokh S. Badesha
  • Publication number: 20220402286
    Abstract: Disclosed herein is a substrate cooling unit for use with a duplex aqueous ink jet image forming device. The substrate cooling unit includes a first transport belt that is in contact with a portion of an outer surface of the first cooling roll to substantially sandwich individual sheets of image receiving media between a first cooling roll and the first transport belt. The substrate cooling unit includes a second cooling roll positioned downstream of the first cooling roll in a process direction and a second transport belt that is in contact with a portion of an outer surface of the second cooling roll to substantially sandwich the individual sheets of image receiving media between the second cooling roll and the second transport belt. The second transport belt includes a bottom layer of woven or non-woven fibers and a top rubber layer.
    Type: Application
    Filed: June 21, 2021
    Publication date: December 22, 2022
    Inventors: John Patrick Baker, Varun Sambhy, Santokh S. Badesha, David Scott Derleth, Piotr Sokolowski
  • Patent number: 11498354
    Abstract: A multilayer imaging blanket for a variable data lithography system, including a multilayer base including a sulfur-containing layer; and a cured topcoat layer including a polyurethane in contact with the sulfur-containing layer of the multilayer base.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: November 15, 2022
    Assignee: XEROX CORPORATION
    Inventors: Varun Sambhy, Peter J. Knausdorf, Ngoc-Tram Le, Santokh S. Badesha, Jack T. LeStrange
  • Publication number: 20220240387
    Abstract: A three-dimensional (3D) metal object manufacturing apparatus selects operational parameters for operation of the printer to form vias in substrates. The apparatus identifies the bulk metal being melted for ejection and uses this identification data to select the operational parameters. The apparatus identifies the via holes in the substrate and positions an ejector opposite the via holes to eject drops of melted bulk metal toward the via holes to fill the via holes.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 28, 2022
    Inventors: Denis Cormier, Santokh S. Badesha, Varun Sambhy
  • Publication number: 20220228030
    Abstract: Provided herein is a topcoat composition comprising at least one fluorosilicone, a hydride-functional crosslinking agent, an infrared-absorbing filler, and at least one dispersant that is non-reactive with the hydride-functional crosslinking agent, by weight based on a total weight of the topcoat composition, wherein the topcoat composition has a degree of crosslinking between about 10 micrograms/hour/milligrams to about 20 micrograms/hour/milligrams. Further provided herein are methods of making the topcoat composition, as well as an imaging blanket and methods of reducing coating defects on a media coated using the imaging member.
    Type: Application
    Filed: January 19, 2021
    Publication date: July 21, 2022
    Applicant: XEROX CORPORATION
    Inventors: Kenny-Tuan T. Dinh, Alexander N. Klymachyov, Lin Ma, Kyle B. Tallman, Eric Robert Dudek, Michael L. Mehan, Harry F. Freitas, JR., Angela Schnuerch, Michael S. Roetker, Ngoc-Tram Le, Varun Sambhy, Santokh S. Badesha
  • Publication number: 20220219381
    Abstract: A three-dimensional (3D) printer includes an ejector and a coil wrapped at least partially around the ejector. The 3D printer also includes a power source configured to transmit voltage pulses to the coil. The 3D printer includes a computing system causing one or more drops of the liquid to be jetted out of the nozzle, and a vibrational source configured to transmit vibrational energy towards the printing material. The frequency of the vibrational energy may be dynamically modulated as a 3D object is formed by the 3D printer, and may be directly or indirectly applied to the printing material or 3D object. The vibrational source may include a piezoelectric source, ultrasonic source, a focused acoustic energy source, a laser vibrational source, or combinations thereof.
    Type: Application
    Filed: January 8, 2021
    Publication date: July 14, 2022
    Applicant: XEROX CORPORATION
    Inventors: Denis Cormier, Santokh S. Badesha, Varun Sambhy
  • Publication number: 20220212265
    Abstract: A three-dimensional (3D) object printer has an ejector head with a single nozzle that is fluidly connected to a plurality of orifices in an orifice plate of the ejector head. An ejection of material through the single nozzle is emitted through the plurality of orifices simultaneously. In one embodiment, some of the orifices are oriented at an angle to a normal to the plane of the orifice plate. A splicer of the printer that generates machine ready instructions for operation of the printer identifies a standoff distance between the orifice plate and a surface onto which drops are being ejected to achieve a target drop spacing for the drops ejected onto the surface. In this manner, a material density for structure within a layer can be achieved without needing to increase the ejection frequency significantly or requiring the printer to incorporate multiple ejector heads.
    Type: Application
    Filed: January 4, 2021
    Publication date: July 7, 2022
    Inventors: Denis Cormier, Santokh S. Badesha, Varun Sambhy
  • Publication number: 20220212249
    Abstract: A three-dimensional (3D) printer includes an ejector and a coil wrapped at least partially around the ejector. The 3D printer also includes a power source configured to transmit voltage pulses to the coil. The 3D printer includes a computing system causing one or more drops of the liquid to be jetted out of the nozzle, and a substrate configured to support the one or more drops and advance along a path defined by one or more arcuate contours, where the one or more arcuate contours define a first layer of a strut. One or more struts are printed from the first layer of the strut to a node of each strut. The one or more struts are printed from a first layer to a node and combine to fabricate a lattice structure including one or more vertical struts and/or one or more angled struts wherein each strut intersects with another strut at a node.
    Type: Application
    Filed: January 6, 2021
    Publication date: July 7, 2022
    Applicant: XEROX CORPORATION
    Inventors: Denis Cormier, Dinesh Krishna Kumar Jayabal, Daniel Cormier, Santokh S. Badesha, Varun Sambhy
  • Publication number: 20220168817
    Abstract: A three-dimensional (3D) printer includes an ejector having a nozzle. The 3D printer also includes a heating element configured to heat a solid metal in the ejector, thereby causing the solid metal to change to a liquid metal within the ejector. The 3D printer also includes a coil wrapped at least partially around the ejector. The 3D printer also includes a power source configured to supply one or more pulses of power to the coil, which cause one or more drops of the liquid metal to be jetted out of the nozzle. The 3D printer also includes a substrate configured to support the one or more drops as the one or more drops solidify to form a 3D object. The 3D printer also includes a gas source configured to cause an oxygen concentration to be less than about 5% proximate to the one or more drops, the 3D object, or both.
    Type: Application
    Filed: December 2, 2020
    Publication date: June 2, 2022
    Applicant: XEROX CORPORATION
    Inventors: Varun Sambhy, George Shannon, Santokh S. Badesha
  • Patent number: 11318760
    Abstract: An inkjet printer includes a dryer configured to attenuate the effects of temperature differentials arising in substrates that are caused by holes in a media transport belt and a platen covering a vacuum plenum. The dryer includes a heater, a media transport belt cooler, and a media transport belt. The media transport belt is configured to move substrates past the heater after ink images have been formed on the substrates and the media transport belt cooler is positioned to remove heat energy from the media transport belt after the media transport belt has passed the heater and the substrates have separated from the media transport belt. The substrate cooler is configured to reduce a temperature of the media transport belt to a temperature that attenuates image defects arising from temperature differentials in the media transport belt when the media transport belt is opposite the heater.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: May 3, 2022
    Assignee: Xerox Corporation
    Inventors: Linn C. Hoover, Douglas K Herrmann, Paul J. McConville, Jason M. LeFevre, Seemit Praharaj, David A. VanKouwenberg, Michael J. Levy, Chu-heng Liu, Santokh S. Badesha, Christopher Mieney, David S. Derleth