Patents by Inventor Arnoldus G. Holthuisen

Arnoldus G. Holthuisen 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).

  • Mixing apparatus for two flowing liquids
    Patent number: 4422769
    Abstract: Mixing apparatus for two liquids such as cold and hot water having separate annular inlets (5, 6), spaced apart, for both of the liquids and provided with an external (7, 8, 9, 10) and internal (13, 14) guides for directing one liquid to the inlet (6) of the other liquid and the discharge of the mixed liquid. Both the external (7, 8, 9, 10) and the internal (13, 14) guides of the one liquid are mainly cylindrical in front of the inlet (6) of the other liquid. At the annular inlet (6) of the other liquid an annular vortex chamber (15) is provided.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: December 27, 1983
    Assignee: Metaalwarenfabriek Venlo B.V.
    Inventor: Arnoldus G. Holthuisen