Patents by Inventor Hans A. Weil

Hans A. Weil 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: 5529566
    Abstract: A method of controlling the rotation of a centrifuge including an outer bowl shell and a scroll supported in the outer bowl shell for rotation relative to the outer bowl shell. The method includes the steps of obtaining control signals representing forces acting on the scroll and controlling the rotation of the centrifuge as a function of the control signals. The method comprises the steps of measuring an axial force imparted on the scroll parallel to an axis of rotation of the scroll; generating feedback signals from values obtained from the measuring step; and controlling the rotation of the centrifuge as a function of the feedback signals.
    Type: Grant
    Filed: November 2, 1994
    Date of Patent: June 25, 1996
    Inventor: Hans A. Weil
  • Patent number: 5437480
    Abstract: A pressure sealed connecting apparatus is provided for the connection of first and second conduits adapted to carry a pressure medium and to rotate relative to one another. Each of the conduits has tangentially contacting countersurfaces for contacting spherical surface areas of a rotation body situated between the first conduit and the second conduit. The rotation body has spherical surface areas adapted to be in rotational sealing contact with the tangentially contacting countersurfaces of each of the conduits.
    Type: Grant
    Filed: September 13, 1993
    Date of Patent: August 1, 1995
    Inventor: Hans A. Weil