Patents Assigned to Becker-Udwin, Inc.
  • Processing of gas streams
    Patent number: 4083703
    Abstract: Method and apparatus for removing material from a gas stream. The gas stream with entrained material is moved downwardly through a filter bed of loose filtering solids of not more than 1.4 millimeter size, simultaneously with the passage of liquid downwardly through the filter bed which wets the surfaces of the filtering solids. Backwashing at intervals cleans the surfaces of the filtering solids of material that has accumulated thereon.
    Type: Grant
    Filed: July 30, 1973
    Date of Patent: April 11, 1978
    Assignee: Becker-Udwin, Inc.
    Inventors: Ellis G. Udwin, Thomas R. Becker