Patents by Inventor Per Gunnar Norback

Per Gunnar Norback 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).

  • Liquid-gas contact apparatus and method for making the same
    Patent number: 3983190
    Abstract: A contact apparatus for effecting the interaction of air and water including at least one bed mounted in a casing of units positioned side by side with each unit composed entirely or partly of corrugated, vertically positioned layers or sheets for receiving water supplied from the top of the casing and air flowing upwardly from the bottom of the casing. The bed has a downward slope from the air intake side of the casing towards the interior of the apparatus.
    Type: Grant
    Filed: April 24, 1974
    Date of Patent: September 28, 1976
    Assignee: Aktiebolaget Carl Munters
    Inventor: Per Gunnar Norback