Patents by Inventor Pekka T. Sammatti

Pekka T. Sammatti 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).

  • Flotation purification apparatus
    Patent number: 4220532
    Abstract: A flotation purification apparatus for separating solids from solids-containing liquids. The apparatus comprises a flotation tank, an annular distributing channel positioned in said tank for supplying the liquid to be purified into said tank and an upwardly widening partition wall positioned in said tank and separating the distributing chamber from outlets for the solids and the purified liquid respectively. The distributing channel is provided with outlets directed toward the corner between the bottom of said tank and said partition wall.
    Type: Grant
    Filed: February 24, 1978
    Date of Patent: September 2, 1980
    Assignee: Oy Nokia AB
    Inventor: Pekka T. Sammatti