Patents by Inventor Arnold William Kilgren

Arnold William Kilgren 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).

  • Selectively recovering metal chlorides from gaseous effluent
    Patent number: 4066424
    Abstract: Process for selectively recovering metal chlorides from a gaseous mixture of metal chlorides by contacting the gaseous mixture at a temperature above the condensation point of the mixture with at least one stream of liquid to cool all the mixture to below the freezing point of at least one metal chloride in the mixture, the average velocity of the mixture being at least the pneumatic conveyance velocity at the point of contact. This process provides for recovery of metal chlorides without plugging the apparatus.
    Type: Grant
    Filed: October 13, 1976
    Date of Patent: January 3, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Arnold William Kilgren, David Nicholson Low, Robert Warwick Porter