Patents by Inventor David G. Dornan

David G. Dornan 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).

  • Patent number: 7300905
    Abstract: Using zeolites as the active adsorbent, adsorbent laminates have been fabricated with various sheet supports. These adsorbent laminates have been successfully operated for oxygen enrichment at high PSA cycle frequencies, such as upwards of at least 150 cycles per minute. Methods for making suitable adsorbent laminates are described. The methods generally involve forming a slurry comprising a liquid suspending agent, an adsorbent and a binder. Laminates are made by applying the slurry to support material or admixing support material with the slurry. The slurry can be applied to support material using a variety of techniques, including roll coaters, split roll coaters, electrophoretic deposition, etc. One method for making laminates by mixing support material with the adsorbent slurry comprises depositing the slurry onto a foraminous wire, draining the slurry material, and pressing the material to form a ceramic adsorbent paper. Spacers can be formed on adsorbent laminates to space one laminate from another.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: November 27, 2007
    Assignee: QuestAir Technologies Inc.
    Inventors: Bowie G. Keefer, Alain A. Carel, Brian G. Sellars, Ian S. D. Shaw, Belinda C. Larisch, David G. Dornan, Frederick K. Lee, Andrea C. Gibbs, Bernard H. Hetzler, James A. Sawada, Aaron M. Pelman, Carl F. Hunter