Patents by Inventor Ib M. Espensen

Ib M. Espensen 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).

  • Rotary machine with a measuring device for the angle of rotation
    Patent number: 4893007
    Abstract: The invention relates to a device or arrangement for measuring the angle of rotation of the rotor of a rotary machine. Markings are applied circumferentially to a part of the rotor that is enclosed by the housing and a passage is provided in the housing which has an opening adjacent the markings. A sensor arrangement disposed at least partly in the housing passage has one end thereof adjacent the markings in a position for detecting the rotational movement of the markings. The snesor arrangement may have electrical, magnetic or optical capabilities.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: January 9, 1990
    Assignee: Danfoss A/S
    Inventors: Jorgen C. Stannow, Bruno Wolff, Niels H. Gade, Ib M. Espensen, Knud Blohm