Patents by Inventor Nikolaas Feis

Nikolaas Feis 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).

  • Cylindrical body provided with means for counteracting vibrations resulting from a transversely flowing fluid
    Patent number: 4059129
    Abstract: Cylindrical body the outer periphery of which is provided with means to counteract vibrations occurring in that body as a result from transverse flow against it, these means comprising a number of small planes mounted according to a certain pattern and placed substantially perpendicular to the outer periphery of the body, which planes form an angle of from 5.degree. to 25.degree. with the cross-section of this cylindrical body; the surfaces of these planes at the most amounting to 2.5% of the surface of the cross-section of the cylindrical body and their lengths at most to 20% of the diameter of this body.
    Type: Grant
    Filed: February 6, 1976
    Date of Patent: November 22, 1977
    Assignee: Nederlandsche Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Ten Behoeve Van Nijverheid
    Inventor: Nikolaas Feis