Patents by Inventor Laura JOHNSEN

Laura JOHNSEN 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).

  • Nozzle for wet gas scrubber
    Patent number: 10478835
    Abstract: A nozzle and methods of gas stripping utilizing the nozzle are provided. A nozzle is provided comprising a ceramic nozzle assembly comprising an inlet at one end of a cylindrical portion, an outlet at one end of a conical portion; the cylindrical portion transitioning to the conical portion at an end of the cylindrical portion distal from the inlet; the conical portion transitioning to the cylindrical portion at an end of the conical portion distal from the outlet; and a ceramic vane assembly within the cylindrical portion; the vane assembly comprising a central vane support located substantially concentrically within the cylindrical portion, and a plurality of angled vanes extending from the central vane support to an inner wall of the cylindrical portion; wherein the ceramic nozzle assembly and the ceramic vane assembly are manufactured such that the two assemblies comprise a single piece of ceramic.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: November 19, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Glenn M. Beatty, Christopher J. Fowler, Venkatesh Subramania, Sandipan K. Das, John B. Barnes, Laura Johnsen
  • NOZZLE FOR WET GAS SCRUBBER
    Publication number: 20180141059
    Abstract: A nozzle and methods of gas stripping utilizing the nozzle are provided. A nozzle is provided comprising a ceramic nozzle assembly comprising an inlet at one end of a cylindrical portion, an outlet at one end of a conical portion; the cylindrical portion transitioning to the conical portion at an end of the cylindrical portion distal from the inlet; the conical portion transitioning to the cylindrical portion at an end of the conical portion distal from the outlet; and a ceramic vane assembly within the cylindrical portion; the vane assembly comprising a central vane support located substantially concentrically within the cylindrical portion, and a plurality of angled vanes extending from the central vane support to an inner wall of the cylindrical portion; wherein the ceramic nozzle assembly and the ceramic vane assembly are manufactured such that the two assemblies comprise a single piece of ceramic.
    Type: Application
    Filed: October 25, 2017
    Publication date: May 24, 2018
    Inventors: Glenn M. Beatty, Christopher J. Fowler, Venkatesh Subramania, Sandipan K. Das, John B. Barnes, Laura Johnsen
  • LOW DENSITY CERAMIC PROPPANT AND METHOD FOR PRODUCTION THEREOF
    Publication number: 20180030337
    Abstract: A method of making a sintered ceramic proppant may include providing a ceramic precursor material comprising kaolin clay, 0.2%-2% by weight alkali silicate, and not more than 0.05% by weight polymeric anionic dispersant. The method may further include pelletizing the ceramic precursor and sintering the ceramic precursor pellets for form a sintered ceramic proppant having a specific gravity ranging from 2.40 to 2.57.
    Type: Application
    Filed: February 22, 2016
    Publication date: February 1, 2018
    Inventors: Robert J. PRUETT, Lisa BUTTITTA, Laura JOHNSEN