Patents by Inventor Gosta Walin

Gosta Walin 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).

  • Oil collecting apparatus
    Patent number: 4332519
    Abstract: An apparatus for collecting pollution, especially oil, from a surface contaminated liquid. The apparatus is adapted to float on the surface of the liquid. A surface layer of liquid with pollutant is drawn into a rotating hollow rotor by virtue of a liquid vortex established therein. The incoming liquid contacts the overlying surface of a concentrically arranged stator. This contact reduces the rotational velocity of the boundary layer of liquid containing the pollutant. The resultant force urges the pollutant toward the center of the vortex, whence it is drawn off through a collecting cavity located centrally of the stator.
    Type: Grant
    Filed: January 29, 1980
    Date of Patent: June 1, 1982
    Inventor: Gosta Walin
  • Oil collecting method
    Patent number: 4295975
    Abstract: Method for collecting pollution, especially oil, from a surface contaminated liquid. An oil collecting apparatus is adapted to float on the surface of the liquid. A surface layer of liquid with pollutant is drawn into a rotating hollow rotor by virtue of a liquid vortex established therein. The incoming liquid contacts the overlying surface of a concentrically arranged stator. This contact reduces the rotational velocity of the boundary layer of liquid containing the pollutant. The resultant force urges the pollutant toward the center of the vortex, when it is drawn off through a collecting cavity located centrally of the stator.
    Type: Grant
    Filed: January 29, 1980
    Date of Patent: October 20, 1981
    Inventor: Gosta Walin
  • Oil collecting apparatus
    Patent number: 4186095
    Abstract: An apparatus for collecting pollution, especially oil, from a surface contaminated liquid. The apparatus is adapted to float on the surface of the liquid. A surface layer of liquid with pollutant is drawn into a rotating hollow rotor by virtue of a liquid vortex established therein. The incoming liquid contacts the overlying surface of a concentrically arranged stator. This contact reduces the rotational velocity of the boundary layer of liquid containing the pollutant. The resultant force urges the pollutant toward the center of the vortex, whence it is drawn off through a collecting cavity located centrally of the stator.
    Type: Grant
    Filed: April 20, 1978
    Date of Patent: January 29, 1980
    Inventor: Gosta Walin