Patents by Inventor David R. Ewy

David R. Ewy 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).

  • CHORDAL WALL SUPPORT SYSTEM FOR CROSS FLOW TRAYS IN A MASS TRANSFER COLUMN AND METHOD INVOLVING SAME
    Publication number: 20190046894
    Abstract: A support system is provided to support cross flow trays in vertically spaced-apart relationship within a mass transfer column. The support system includes a chordal wall that has vertically-extending opposite ends that are secured to an external shell of the mass transfer column. Each cross flow tray has a tray deck with fluid flow apertures and at least one chordal downcomer. The chordal downcomers are positioned in vertical alignment on each of the cross flow trays and include downcomer passageways formed by spaced-apart downcomer walls. The chordal wall extends vertically through the downcomer passageways on the cross flow trays and the downcomer walls are coupled with the chordal wall to transfer a load from the tray decks and the downcomer walls to the chordal wall.
    Type: Application
    Filed: February 17, 2017
    Publication date: February 14, 2019
    Applicant: KOCH-GLITSCH, LP
    Inventors: Darran Headley, David R. Ewy
  • Cross flow tray and support system for use in a mass transfer column
    Patent number: 9295926
    Abstract: Cross flow trays are provided with a support system. The support system interconnects the upper cross flow tray to a downcomer of the lower cross flow tray to provide support for the upper tray. In some aspects, the support system may also interconnect the downcomer of the lower cross flow tray to an upper tray of an underlying pair, providing additional support for the assembly. Such tray assemblies may facilitate easier installation without impeding the performance of the column.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: March 29, 2016
    Assignee: Koch-Glitsch LP
    Inventors: Izak Nieuwoudt, Darran Matthew Headley, David R. Ewy, Gary W. Gage
  • Use of downcomer beam to support adjacent cross flow trays within a mass transfer column and process involving same
    Patent number: 8944418
    Abstract: Cross flow trays in a mass transfer column are provided with downcomers having one or more walls that extend from a tray deck of one the cross flow trays to an elevation below a tray deck of an underlying one of the cross flow trays. The downcomer walls are connected to and provide structural support for the tray decks of the cross flow trays.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: February 3, 2015
    Assignee: Koch-Glitsch, LP
    Inventors: Darran Matthew Headley, David R. Ewy, Gary W. Gage
  • CROSS FLOW TRAY AND SUPPORT SYSTEM FOR USE IN A MASS TRANSFER COLUMN
    Publication number: 20130234348
    Abstract: Cross flow trays are provided with a support system. The support system interconnects the upper cross flow tray to a downcomer of the lower cross flow tray to provide support for the upper tray. In some aspects, the support system may also interconnect the downcomer of the lower cross flow tray to an upper tray of an underlying pair, providing additional support for the assembly. Such tray assemblies may facilitate easier installation without impeding the performance of the column.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 12, 2013
    Applicant: KOCH-GLITSCH, LP
    Inventors: Izak Nieuwoudt, Darran Matthew Headley, David R. Ewy, Gary W. Gage
  • USE OF DOWNCOMER BEAM TO SUPPORT ADJACENT CROSS FLOW TRAYS WITHIN A MASS TRANSFER COLUMN AND PROCESS INVOLVING SAME
    Publication number: 20120292791
    Abstract: Cross flow trays in a mass transfer column are provided with downcomers having one or more walls that extend from a tray deck of one the cross flow trays to an elevation below a tray deck of an underlying one of the cross flow trays. The downcomer walls are connected to and provide structural support for the tray decks of the cross flow trays.
    Type: Application
    Filed: May 14, 2012
    Publication date: November 22, 2012
    Applicant: Koch-Glitsch, LP
    Inventors: Darran Matthew Headley, David R. Ewy, Gary W. Gage