Patents by Inventor J. Randolph Sanders

J. Randolph Sanders 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).

  • Layer transfusion for heat capacitor belt for additive manufacturing
    Patent number: 11241824
    Abstract: An additive manufacturing system comprising a transfer medium configured to receive the layers from a imaging engine, a heater configured to heat the layers on the transfer medium, and a layer transfusion assembly that includes a build platform, and is configured to transfuse the heated layers onto the build platform in a layer-by-layer manner to print a three-dimensional part.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: February 8, 2022
    Assignee: Evolve Additive Solutions, Inc.
    Inventors: James W. Comb, Steven A. Chillscyzn, William J. Hanson, J. Randolph Sanders, Michael W. Bacus
  • LAYER TRANSFUSION FOR HEAT CAPACITOR BELT FOR ADDITIVE MANUFACTURING
    Publication number: 20180370214
    Abstract: An additive manufacturing system comprising a transfer medium configured to receive the layers from a imaging engine, a heater configured to heat the layers on the transfer medium, and a layer transfusion assembly that includes a build platform, and is configured to transfuse the heated layers onto the build platform in a layer-by-layer manner to print a three-dimensional part.
    Type: Application
    Filed: August 6, 2018
    Publication date: December 27, 2018
    Inventors: James W. Comb, Steven A. Chillscyzn, William J. Swanson, J. Randolph Sanders, Michael W. Bacus
  • Layer transfusion with transfixing for additive manufacturing
    Patent number: 9904223
    Abstract: An additive manufacturing system comprising a transfer medium configured to receive the layers from a imaging engine, a heater configured to heat the layers on the transfer medium, and a layer transfusion assembly that includes a build platform, and is configured to transfuse the heated layers onto the build platform in a layer-by-layer manner to print a three-dimensional part.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: February 27, 2018
    Assignee: Stratasys, Inc.
    Inventors: Steven A. Chillscyzn, James W. Comb, William J. Hanson, J. Randolph Sanders, Michael W. Bacus
  • Layer transfusion for additive manufacturing
    Patent number: 9885987
    Abstract: An additive manufacturing system comprising a transfer medium configured to receive the layers from a imaging engine, a heater configured to heat the layers on the transfer medium, and a layer transfusion assembly that includes a build platform, and is configured to transfuse the heated layers onto the build platform in a layer-by-layer manner to print a three-dimensional part.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: February 6, 2018
    Assignee: Stratasys, Inc.
    Inventors: Steven A. Chillscyzn, James W. Comb, William J. Hanson, J. Randolph Sanders, Michael W. Bacus
  • Layer transfusion with rotatable belt for additive manufacturing
    Patent number: 9720363
    Abstract: An additive manufacturing system comprising a transfer medium configured to receive the layers from a imaging engine, a heater configured to heat the layers on the transfer medium, and a layer transfusion assembly that includes a build platform, and is configured to transfuse the heated layers onto the build platform in a layer-by-layer manner to print a three-dimensional part.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: August 1, 2017
    Assignee: Stratasys, Inc.
    Inventors: Steven A. Chillscyzn, James W. Comb, William J. Hanson, J. Randolph Sanders, Michael W. Bacus
  • Electrophotography-based additive manufacturing system with reciprocating operation
    Patent number: 9423756
    Abstract: An additive manufacturing system for printing a three-dimensional part using electrophotography, the additive manufacturing system comprising a rotatable photoconductor component, first and second development stations configured to develop layers of materials on a surface of the rotatable photoconductor component while the rotatable photoconductor component rotates in opposing rotational directions, and a platen configured to operably receive the developed layers in a layer-by-layer manner to print the three-dimensional part from at least a portion of the received layers.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: August 23, 2016
    Assignee: Stratasys, Inc.
    Inventors: William J. Hanson, J. Randolph Sanders, Michael W. Bacus, Steven A. Chillscyzn
  • Electrophotography-based additive manufacturing system with transfer-medium service loops
    Patent number: 9141015
    Abstract: An additive manufacturing system for printing a three-dimensional part using electrophotography, the additive manufacturing system including a rotatable photoconductor component, a development station configured to develop layers of a material on a surface of the rotatable photoconductor component, a rotatable transfer medium configured to receive the developed layers from the surface of the rotatable photoconductor component, and a platen configured to receive the developed layers from the rotatable transfer medium in a layer-by-layer manner. The additive manufacturing system also includes a plurality of service loops configured to move portions of the rotatable transfer medium at different line speeds while maintaining a net rotational rate of full rotations of the rotatable transfer medium at a substantially steady state.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: September 22, 2015
    Assignee: Stratasys, Inc.
    Inventors: William J. Hanson, J. Randolph Sanders, Michael W. Bacus, Steven A. Chillscyzn
  • ELECTROPHOTOGRAPHY-BASED ADDITIVE MANUFACTURING SYSTEM WITH RECIPROCATING OPERATION
    Publication number: 20150016841
    Abstract: An additive manufacturing system for printing a three-dimensional part using electrophotography, the additive manufacturing system comprising a rotatable photoconductor component, first and second development stations configured to develop layers of materials on a surface of the rotatable photoconductor component while the rotatable photoconductor component rotates in opposing rotational directions, and a platen configured to operably receive the developed layers in a layer-by-layer manner to print the three-dimensional part from at least a portion of the received layers.
    Type: Application
    Filed: October 2, 2014
    Publication date: January 15, 2015
    Inventors: William J. Hanson, J. Randolph Sanders, Michael W. Bacus, Steven A. Chillscyzn
  • Electrophotography-based additive manufacturing system with reciprocating operation
    Patent number: 8879957
    Abstract: An additive manufacturing system for printing a three-dimensional part using electrophotography, the additive manufacturing system comprising a rotatable photoconductor component, first and second development stations configured to develop layers of materials on a surface of the rotatable photoconductor component while the rotatable photoconductor component rotates in opposing rotational directions, and a platen configured to operably receive the developed layers in a layer-by-layer manner to print the three-dimensional part from at least a portion of the received layers.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: November 4, 2014
    Assignee: Stratasys, Inc.
    Inventors: William J. Hanson, J. Randolph Sanders, Michael W. Bacus, Steven A. Chillscyzn
  • Layer transfusion with part heating for additive manufacturing
    Patent number: 8718522
    Abstract: An additive manufacturing system comprising a transfer medium configured to receive the layers from a imaging engine, a heater configured to heat the layers on the transfer medium, and a layer transfusion assembly that includes a build platform, and is configured to transfuse the heated layers onto the build platform in a layer-by-layer manner to print a three-dimensional part.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: May 6, 2014
    Assignee: Stratasys, Inc.
    Inventors: Steven A. Chillscyzn, James W. Comb, William J. Hanson, J. Randolph Sanders, Michael W. Bacus
  • ELECTROPHOTOGRAPHY-BASED ADDITIVE MANUFACTURING SYSTEM WITH TRANSFER-MEDIUM SERVICE LOOPS
    Publication number: 20130272746
    Abstract: An additive manufacturing system for printing a three-dimensional part using electrophotography, the additive manufacturing system comprising a rotatable photoconductor component, a development station configured to develop layers of a material on a surface of the rotatable photoconductor component, a rotatable transfer medium configured to receive the developed layers from the surface of the rotatable photoconductor component, and a platen configured to receive the developed layers from the rotatable transfer medium in a layer-by-layer manner. The additive manufacturing system also comprises a plurality of service loops configured to move portions of the rotatable transfer medium at different line speeds while maintaining a net rotational rate of full rotations of the rotatable transfer medium at a substantially steady state.
    Type: Application
    Filed: June 7, 2013
    Publication date: October 17, 2013
    Inventors: William J. Hanson, J. Randolph Sanders, Michael W. Bacus, Steven A. Chillscyzn
  • Electrophotography-based additive manufacturing system with transfer-medium service loops
    Patent number: 8488994
    Abstract: An additive manufacturing system for printing a three-dimensional part using electrophotography, the additive manufacturing system including a rotatable photoconductor component, a development station configured to develop layers of a material on a surface of the rotatable photoconductor component, a rotatable transfer medium configured to receive the developed layers from the surface of the rotatable photoconductor component, and a platen configured to receive the developed layers from the rotatable transfer medium in a layer-by-layer manner. The additive manufacturing system also includes a plurality of service loops configured to move portions of the rotatable transfer medium at different line speeds while maintaining a net rotational rate of full rotations of the rotatable transfer medium at a substantially steady state.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: July 16, 2013
    Assignee: Stratasys, Inc.
    Inventors: William J. Hanson, J. Randolph Sanders, Michael W. Bacus, Steven A. Chillscyzn
  • ELECTROPHOTOGRAPHY-BASED ADDITIVE MANUFACTURING SYSTEM WITH TRANSFER-MEDIUM SERVICE LOOPS
    Publication number: 20130077997
    Abstract: An additive manufacturing system for printing a three-dimensional part using electrophotography, the additive manufacturing system comprising a rotatable photoconductor component, a development station configured to develop layers of a material on a surface of the rotatable photoconductor component, a rotatable transfer medium configured to receive the developed layers from the surface of the rotatable photoconductor component, and a platen configured to receive the developed layers from the rotatable transfer medium in a layer-by-layer manner. The additive manufacturing system also comprises a plurality of service loops configured to move portions of the rotatable transfer medium at different line speeds while maintaining a net rotational rate of full rotations of the rotatable transfer medium at a substantially steady state.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: STRATASYS, INC.
    Inventors: William J. Hanson, J. Randolph Sanders, Michael W. Bacus, Steven A. Chillscyzn
  • Layer Transfusion with Part Heating for Additive Manufacturing
    Publication number: 20130078013
    Abstract: An additive manufacturing system comprising a transfer medium configured to receive the layers from a imaging engine, a heater configured to heat the layers on the transfer medium, and a layer transfusion assembly that includes a build platform, and is configured to transfuse the heated layers onto the build platform in a layer-by-layer manner to print a three-dimensional part.
    Type: Application
    Filed: September 21, 2012
    Publication date: March 28, 2013
    Applicant: STRATASYS, INC.
    Inventors: Steven A. Chillscyzn, James W. Comb, William J. Hanson, J. Randolph Sanders, Michael W. Bacus
  • ELECTROPHOTOGRAPHY-BASED ADDITIVE MANUFACTURING SYSTEM WITH RECIPROCATING OPERATION
    Publication number: 20130077996
    Abstract: An additive manufacturing system for printing a three-dimensional part using electrophotography, the additive manufacturing system comprising a rotatable photoconductor component, first and second development stations configured to develop layers of materials on a surface of the rotatable photoconductor component while the rotatable photoconductor component rotates in opposing rotational directions, and a platen configured to operably receive the developed layers in a layer-by-layer manner to print the three-dimensional part from at least a portion of the received layers.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: STRATASYS, INC.
    Inventors: William J. Hanson, J. Randolph Sanders, Michael W. Bacus, Steven A. Chillscyzn
  • Method for enhancing the permanence of printed images
    Patent number: 5066517
    Abstract: Apparatus for enhancing the permanence of printed images. A substrate with a heated, fused toner image is passed by a PTFE powder coated roller for selective contact therewith by a pivotable engagement bar. The PTFE particles are adhered only to the desired imprinted areas and not to the non-printed and non-selected areas of the substrate. The powder is dispensed on a selective basis to the surface of the substrate. The invention also includes the method for enhancing the permanence of a printed image on the substrate.
    Type: Grant
    Filed: December 12, 1989
    Date of Patent: November 19, 1991
    Assignee: AcuPrint, Inc.
    Inventors: William J. Hanson, J. Randolph Sanders
  • Base for a telephone handset
    Patent number: D344082
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: February 8, 1994
    Assignees: InterActive, Inc., Torrey Pines Research, Inc.
    Inventors: Bernard C. Lafreniere, Lonnie C. Pogue, Aubrey E. Thompson, J. Randolph Sanders, Gerard L. Kappenman