Patents by Inventor Lars B. S. Fors

Lars B. S. Fors 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).

  • Plant for treatment of urban runoff water
    Patent number: 4664792
    Abstract: A plant for treatment of urban run off water where a body of water (50) is separated from a water recipient (60) by means of a flexible curtain (13) extending between the bottom (80) and the surface (90) of the water recipient. The bottom end of the curtain is anchored (14) to the bottom while the surface end is provided with float means (11) being movable across the surface to change the volume of the body of water.
    Type: Grant
    Filed: April 25, 1985
    Date of Patent: May 12, 1987
    Assignee: Atlas Copco Aktiebolag
    Inventors: Lars B. S. Fors, Bo L. Verner
  • Device for increasing the oxygen concentration in a subsurface stratum of a thermally stratified body of water
    Patent number: 4549997
    Abstract: A device for increasing the oxygen concentration in a subsurface stratum of a thermally stratified body of water. The device comprises a flexible tube (13), which is surrounded by a flexible shell (12). Compressed oxygen-containing gas is introduced through first nozzle means (29) at the lower end of the tube and through second nozzle means (31) into channel means (34) between the shell (12) and the tube (13). There is an upward flow of water in the tube and a downward flow in the channel means (34) around the tube.
    Type: Grant
    Filed: May 22, 1984
    Date of Patent: October 29, 1985
    Assignee: Atlas Copco Aktiebolag
    Inventors: Bo L. Verner, Lars B. S. Fors