Patents by Inventor Zeiter S. Farah

Zeiter S. Farah 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).

  • Additive manufacturing with virtual planarization control
    Patent number: 9770869
    Abstract: A method and system for printing a three-dimensional part, which includes printing a plurality of successive layers of the three-dimensional part with the additive manufacturing system based on bitslices in a bitslice stack, measuring surface heights of the successive layers after each of the successive layers are printed, determining differences between the measured surface heights and predicted stack heights of the bitslices, identifying one or more topographical error regions based on the determined differences, and modifying the bitslice stack to compensate for the one or more topographical error regions.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: September 26, 2017
    Assignee: Stratasys, Inc.
    Inventors: James W. Comb, Zeiter S. Farah, J. Samuel Batchelder
  • Electrophotography-based additive manufacturing with powder density detection and utilization
    Patent number: 9643357
    Abstract: An additive manufacturing system for printing a three-dimensional part, which includes one or more electrophotography engines configured to develop layers of the three-dimensional part, a rotatable transfer belt configured to receive the developed layers from the electrophotography engine(s), a detector configured to measure powder densities of the developed layers on the rotatable transfer belt, and to transmit signals relating to the measured powder densities to a controller assembly, and a printing assembly configured to receive the developed layer from the rotatable transfer belt and to print the three-dimensional part from the developed layers.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: May 9, 2017
    Assignee: Stratasys, Inc.
    Inventors: Zeiter S. Farah, J. Samuel Batchelder
  • ADDITIVE MANUFACTURING WITH VIRTUAL PLANARIZATION CONTROL
    Publication number: 20150266242
    Abstract: A method and system for printing a three-dimensional part, which includes printing a plurality of successive layers of the three-dimensional part with the additive manufacturing system based on bitslices in a bitslice stack, measuring surface heights of the successive layers after each of the successive layers are printed, determining differences between the measured surface heights and predicted stack heights of the bitslices, identifying one or more topographical error regions based on the determined differences, and modifying the bitslice stack to compensate for the one or more topographical error regions.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 24, 2015
    Inventors: James W. Comb, Zeiter S. Farah, J. Samuel Batchelder
  • Electrophotography-Based Additive Manufacturing with Powder Density Detection and Utilization
    Publication number: 20150266236
    Abstract: An additive manufacturing system for printing a three-dimensional part, which includes one or more electrophotography engines configured to develop layers of the three-dimensional part, a rotatable transfer belt configured to receive the developed layers from the electrophotography engine(s), a detector configured to measure powder densities of the developed layers on the rotatable transfer belt, and to transmit signals relating to the measured powder densities to a controller assembly, and a printing assembly configured to receive the developed layer from the rotatable transfer belt and to print the three-dimensional part from the developed layers.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 24, 2015
    Inventors: Zeiter S. Farah, J. Samuel Batchelder