Patents by Inventor Volker Loetz-Dauer

Volker Loetz-Dauer 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).

  • Contactless rotational speed measurement arrangement utilizing radically aligned rotating magnets
    Patent number: 5877624
    Abstract: Measuring arrangement for contactless measurement of rotational speed. The measuring arrangement operates using a stationary pulse wire sensor (5) which is activated by the magnetic fields of several revolving, radially aligned magnets (4). The rotational speed of a component (3a) arranged on a shaft (3) is detected by each pulse being triggered in the pulse wire sensor (5) by two opposite poles (N, S) lying at an axial distance to each other. The measuring arrangement provides reliable measurements irrespective of the rotational speed, in particular in the lower measuring range.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: March 2, 1999
    Assignee: Elster Produktion GmbH
    Inventors: Volker Loetz-Dauer, Thomas Kettner