Patents by Inventor Nancy Irwin

Nancy Irwin 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).

  • Structured packing
    Patent number: 6713158
    Abstract: A structured packing with improved packing elements and method of using the structured packing. Each structured packing element comprises corrugated sheets and planar members alternating with and located between the corrugated sheets The planar members are positioned so that at least the lowermost horizontal edges of the planar members and the corrugated sheets are situated proximal to one another. Perforations provided in the planar members and the corrugated sheets are designed to avoid turbulent flows and bulk fluid flow across the packing element while allowing transverse pressure equalization. Different configurations of corrugated sheets may be used with the planar members to form the structured packing.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: March 30, 2004
    Assignee: The BOC Group, Inc.
    Inventors: Kevin McKeigue, Ramachandran Krishnamurthy, Nancy Irwin, Hendrik Jekeli Kooijman
  • Structured packing
    Publication number: 20030190461
    Abstract: A structured packing with improved packing elements and method of using the structured packing. Each structured packing element comprises corrugated sheets and planar members alternating with and located between the corrugated sheets The planar members are positioned so that at least the lowermost horizontal edges of the planar members and the corrugated sheets are situated proximal to one another. Perforations provided in the planar members and the corrugated sheets are designed to avoid turbulent flows and bulk fluid flow across the packing element while allowing transverse pressure equalization. Different configurations of corrugated sheets may be used with the planar members to form the structured packing.
    Type: Application
    Filed: December 22, 2000
    Publication date: October 9, 2003
    Inventors: Kevin McKeigue, Ramachandran Krishnamurthy, Nancy Irwin, Hendrik Jekeli Kooijman