Patents by Inventor Sietjo B. Bos

Sietjo B. Bos 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).

  • Devices for aerating liquids
    Patent number: 3980740
    Abstract: A device for aerating liquid in a tank comprises a rotating body having vanes which contact the surface of the liquid. A splash guard is disposed above the body to reflect into the tank liquid droplets discharged upwardly by the body.
    Type: Grant
    Filed: December 5, 1974
    Date of Patent: September 14, 1976
    Assignee: Landustrie Sneek, Machinefabriek Elektrotechniek B.V.
    Inventor: Sietjo B. Bos