Patents by Inventor Yosef Notkin

Yosef Notkin 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).

  • Sprinkler device
    Patent number: 4717076
    Abstract: A vortex sprinkler having a vortex chamber delimited in the downward direction by a bottom surface and in the upward direction by a rimmed opening leading to the atmosphere, at least one liquid inlet leading substantially tangentially into the vortex chamber, and a plurality of slots cut across the rim of the opening, wherein the slots are cut in a direction substantially tangential with respect to the vortex chamber.
    Type: Grant
    Filed: August 5, 1986
    Date of Patent: January 5, 1988
    Assignee: Plastro Gvat
    Inventor: Yosef Notkin