Patents by Inventor Melvin Braaten

Melvin Braaten 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).

  • Water purifier unit
    Patent number: 4572785
    Abstract: A water purifier for producing potable water from contaminated water, the purifier includes a crystallizer chamber with a plurality of projecting freeze elements, and a water spray unit which directs a fine spray of water at the freeze elements to produce ice coating on the freeze elements. The purifier also includes a refrigerant unit to periodically chill and warm the freeze elements to alternately produce and release ice shells that are melted to form purified water.
    Type: Grant
    Filed: March 29, 1984
    Date of Patent: February 25, 1986
    Inventor: Melvin Braaten