Patents by Inventor John L. Schlafer

John L. Schlafer 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).

  • Permanganate feeder for iron filter
    Patent number: 6210646
    Abstract: A potassium permanganate feeder has an inlet container and an outlet container disposed in an outer container. An inlet tube disposed in the inlet container supplies fill water which flows out of the inlet container through a porous screen to dissolve potassium potassium crystals. The resulting potassium permanganate solution flows into the outlet container through a porous screen where it may be withdrawn through an outlet tube disposed therein.
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: April 3, 2001
    Assignee: Ecowater Systems, Inc.
    Inventors: Ralph H. Larson, John L. Schlafer
  • Reactor apparatus for treating water in iron removal system
    Patent number: 5725759
    Abstract: A system for removing iron from well water which, in addition to sources of air and water and an iron filter, has a reaction chamber wherein water containing dissolved iron is turbulently mixed with air and after oxidation of the water, excess air is removed through venting means located approximately midway between the ends of the reaction chamber.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: March 10, 1998
    Assignee: Ecowater Systems, Inc.
    Inventors: John L. Schlafer, Lori Nyland, William Raatz