Patents by Inventor Edwin MAAS

Edwin MAAS 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).

  • GAS PHASE SETTLING (GPS) TRAY
    Publication number: 20230124860
    Abstract: A device for filtering and settling entrained particles from a gas feed stream, the device comprising a cylindrical v-wire filter element to filter the entrained particles, a cap located above the v-wire filter element comprising an outer surface, an under surface, and a downward rim attached to a perimeter of the under surface, and an open annulus area located between and in fluid communication with an open top portion of the v-wire filter element and the under surface of the cap.
    Type: Application
    Filed: April 26, 2021
    Publication date: April 20, 2023
    Inventors: Johannis Desiderius STOLWIJK, Julien SIGAUD, Edwin MAAS
  • Method of cleaning spent catalyst material
    Patent number: 11325088
    Abstract: A method of cleaning spent catalyst material from a catalyst filter basket. The catalyst filter basket includes a central frame having a base ring and a generally cylindrical inner screen portion which extends upwardly from the base ring. A generally cylindrical outer screen assembly is releasably secured to the central frame by a quick release mechanism.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: May 10, 2022
    Assignee: SHELL USA, INC.
    Inventors: Edwin Maas, Ruud Kneppers
  • METHOD OF CLEANING SPENT CATALYST MATERIAL
    Publication number: 20200147571
    Abstract: A method of cleaning spent catalyst material from a catalyst filter basket. The catalyst filter basket includes a central frame having a base ring and a generally cylindrical inner screen portion which extends upwardly from the base ring.
    Type: Application
    Filed: January 9, 2020
    Publication date: May 14, 2020
    Inventors: Edwin MAAS, Ruud KNEPPERS
  • Easy clean catalyst filter basket
    Patent number: 10562002
    Abstract: A catalyst filter basket for containing catalyst material within a catalytic chemical reactor. The catalyst filter basket includes a central frame having a base ring and a generally cylindrical inner screen portion which extends upwardly from the base ring. A generally cylindrical outer screen assembly is releasably secured to the central frame by a quick release mechanism.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: February 18, 2020
    Assignee: SHELL OIL COMPANY
    Inventors: Edwin Maas, Ruud Kneppers
  • Tray support inserts for chemical reactor vessels and methods of use
    Patent number: 10293321
    Abstract: A tray support insert and method of use for supporting one or more trays within a reactor chamber. The tray support insert includes at least one annular member which rests upon a support shoulder within the reactor chamber.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: May 21, 2019
    Assignee: SHELL OIL COMPANY
    Inventors: Edwin Maas, Remco Schilthuizen
  • Tray support insers for chemical reactor vessels and methods of use
    Publication number: 20170173547
    Abstract: A tray support insert and method of use for supporting one or more trays within a reactor chamber. The tray support insert includes at least one annular member which rests upon a support shoulder within the reactor chamber.
    Type: Application
    Filed: December 19, 2016
    Publication date: June 22, 2017
    Inventors: Edwin MAAS, Remco SCHILTHUIZEN
  • EASY CLEAN CATALYST FILTER BASKET
    Publication number: 20170128901
    Abstract: A catalyst filter basket for containing catalyst material within a catalytic chemical reactor. The catalyst filter basket includes a central frame having a base ring and a generally cylindrical inner screen portion which extends upwardly from the base ring. A generally cylindrical outer screen assembly is releasably secured to the central frame by a quick release mechanism.
    Type: Application
    Filed: November 9, 2016
    Publication date: May 11, 2017
    Inventors: Edwin MAAS, Ruud KNEPPERS