Patents by Inventor Ole Stenderup

Ole Stenderup 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).

  • Patent number: 4940538
    Abstract: An inlet nipple and a housing having a water passage extending therethrough that have first, second and third water bore portions of progressively larger diameters in a downstream direction. A variable throttle point is formed by a fixed member and a movable member acting in conjunction with the bore portions that produce a turbulent flow causing cavitation downstream of the throttle point independently of the quantity of flow. In one embodiment the movable member includes a closure portion seatable against a seat formed at the intersection of the bore portion and an annular portion that in conjunction with a bore portion forms an annular water flow space downstream of the closure portion. In the second embodiment the fixed member has a closure portion converging toward an aperture in the movable member which is in the shape of a cup.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: July 10, 1990
    Assignee: Danfoss A/S
    Inventors: Erik Kyster, Niels-Henrik G. Jakobsen, Jens J. Molbaek, Ole Stenderup, Bjarne Straede