Patents by Inventor Kjell E. Stendahl

Kjell E. Stendahl 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).

  • Method and apparatus for distributing water purifying chemicals
    Patent number: 4663055
    Abstract: A method and apparatus for distributing a water purifying chemical, particularly a flocculating-agent concentrate, throughout a stream of water to be purified. In accordance with the method, the concentrate is introduced into the stream of water transversally to its direction of flow under the action of rotational motion, to achieve a distribution time of at most one second.
    Type: Grant
    Filed: December 4, 1984
    Date of Patent: May 5, 1987
    Assignee: Boliden Aktiebolag
    Inventors: Tommy Ling, Kjell E. Stendahl