Patents by Inventor Sunjung Ahn

Sunjung Ahn 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).

  • Online bakeout of regenerative oxidizers
    Patent number: 6974318
    Abstract: A method of burning off accumulated contaminants from heat sink media of a regenerative oxidizer having a plurality of segments containing media arranged around a central axis and a rotary valve which includes repeatedly rotating the rotary valve 180 degrees to alternatively direct waste gas through a first plurality of segments, direct the hot gas through a second plurality of segments and purge gas through a third segment to burn off the contaminants, then indexing the rotary valve one segment and repeating the burn-off process of all segments.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: December 13, 2005
    Assignee: Dürr Environmental, Inc.
    Inventors: Sunjung Ahn, Donald I. McAnespie, Jason T. Schroeder
  • ONLINE BAKEOUT OF REGENERATIVE OXIDIZERS
    Publication number: 20050227189
    Abstract: A method of burning off accumulated contaminants from heat sink media of a regenerative oxidizer having a plurality of segments containing media arranged around a central axis and a rotary valve which includes repeatedly rotating the rotary valve 180 degrees to alternatively direct waste gas through a first plurality of segments, direct the hot gas through a second plurality of segments and purge gas through a third segment to burn off the contaminants, then indexing the rotary valve one segment and repeating the burn-off process of all segments.
    Type: Application
    Filed: April 5, 2004
    Publication date: October 13, 2005
    Inventors: Sunjung Ahn, Donald McAnespie, Jason Schroeder