Patents by Inventor Usama Abdullah Rifat

Usama Abdullah Rifat 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).

  • BUILDING AN OBJECT WITH A THREE-DIMENSIONAL PRINTER USING BURST MODE JETTING
    Publication number: 20220184708
    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 also includes a computing system configured to cause the power source to transmit the voltage pulses to the coil in intermittent bursts. The voltage pulses in each burst occur at a burst frequency from about 60 Hz to about 2000 Hz. The coil causes a drop of printing material to be jetted through a nozzle of the ejector in response to each voltage pulse. The drops generated in response to the voltage pulses in each burst land at substantially a same location in a horizontal plane.
    Type: Application
    Filed: December 14, 2020
    Publication date: June 16, 2022
    Applicant: XEROX CORPORATION
    Inventors: Denis Cormier, Usama Abdullah Rifat, Paarth Mehta