Patents by Inventor Norbert Koropp

Norbert Koropp 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).

  • X-ray apparatus with a movable part
    Patent number: 4868845
    Abstract: The invention relates to an X-ray apparatus with a motor-driven movable part. The drive takes place via a shaft, which is mounted in a bearing, the bearing forces of which are measured by a measuring device.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: September 19, 1989
    Assignee: U.S. Philips Corporation
    Inventor: Norbert Koropp
  • Examination apparatus with mass balancing for a part thereof which is pivotable about an axis
    Patent number: 4856413
    Abstract: The invention relates to an examination apparatus with a mass balancing device. The balancing device comprises a compressed air cylinder which operates as a gas pressure operated spring. The internal pressure of the cylinder can be controlled, by a pressure control circuit in dependence of the sine of the pivot angle. A pressure control circuit is a control signal supplied by a sine generator. The sine generator generates a signal which is dependent on the sine of the pivot angle.
    Type: Grant
    Filed: November 17, 1988
    Date of Patent: August 15, 1989
    Assignee: U.S. Philips Corporation
    Inventor: Norbert Koropp